diff --git a/include/input/Input.h b/include/input/Input.h
index 456977b..77d7448 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -196,6 +196,13 @@
 #define MAX_POINTER_ID 31
 
 /*
+ * Number of high resolution scroll units for one detent (scroll wheel click), as defined in
+ * evdev. This is relevant when an input device is emitting REL_WHEEL_HI_RES or REL_HWHEEL_HI_RES
+ * events.
+ */
+constexpr int32_t kEvdevHighResScrollUnitsPerDetent = 120;
+
+/*
  * Declare a concrete type for the NDK's input event forward declaration.
  */
 struct AInputEvent {
diff --git a/include/input/InputConsumerNoResampling.h b/include/input/InputConsumerNoResampling.h
index 9e48b08..c7b1970 100644
--- a/include/input/InputConsumerNoResampling.h
+++ b/include/input/InputConsumerNoResampling.h
@@ -24,7 +24,7 @@
 /**
  * An interface to receive batched input events. Even if you don't want batching, you still have to
  * use this interface, and some of the events will be batched if your implementation is slow to
- * handle the incoming input.
+ * handle the incoming input. The events received by these callbacks are never null.
  */
 class InputConsumerCallbacks {
 public:
diff --git a/include/input/VirtualInputDevice.h b/include/input/VirtualInputDevice.h
index 9bbaa0c..dabe45c 100644
--- a/include/input/VirtualInputDevice.h
+++ b/include/input/VirtualInputDevice.h
@@ -77,6 +77,8 @@
 
 private:
     static const std::map<int, int> BUTTON_CODE_MAPPING;
+    int32_t mAccumulatedHighResScrollX;
+    int32_t mAccumulatedHighResScrollY;
 };
 
 class VirtualTouchscreen : public VirtualInputDevice {
@@ -127,6 +129,9 @@
     VirtualRotaryEncoder(android::base::unique_fd fd);
     virtual ~VirtualRotaryEncoder() override;
     bool writeScrollEvent(float scrollAmount, std::chrono::nanoseconds eventTime);
+
+private:
+    int32_t mAccumulatedHighResScrollAmount;
 };
 
 } // namespace android
diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index 6185b7b..c57c9cd 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp
@@ -441,14 +441,6 @@
     return INVALID_OPERATION;
 }
 
-status_t BBinder::addFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>&) {
-    return INVALID_OPERATION;
-}
-
-status_t BBinder::removeFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>&) {
-    return INVALID_OPERATION;
-}
-
 status_t BBinder::dump(int /*fd*/, const Vector<String16>& /*args*/)
 {
     return NO_ERROR;
diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index 59c5be7..6594aa6 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp
@@ -557,14 +557,6 @@
     }
 }
 
-status_t BpBinder::addFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>&) {
-    return INVALID_OPERATION;
-}
-
-status_t BpBinder::removeFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>&) {
-    return INVALID_OPERATION;
-}
-
 void BpBinder::reportOneDeath(const Obituary& obit)
 {
     sp<DeathRecipient> recipient = obit.recipient.promote();
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 3f70e8c..e8fe555 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -1585,10 +1585,15 @@
             fdVariant = borrowed_fd(fd);
         }
         if (!mAllowFds) {
+            ALOGE("FDs are not allowed in this parcel. Both the service and the client must set "
+                  "the FileDescriptorTransportMode and agree on the support.");
             return FDS_NOT_ALLOWED;
         }
         switch (rpcFields->mSession->getFileDescriptorTransportMode()) {
             case RpcSession::FileDescriptorTransportMode::NONE: {
+                ALOGE("FDs are not allowed in this RpcSession. Both the service and the client "
+                      "must set "
+                      "the FileDescriptorTransportMode and agree on the support.");
                 return FDS_NOT_ALLOWED;
             }
             case RpcSession::FileDescriptorTransportMode::UNIX:
diff --git a/libs/binder/include/binder/Binder.h b/libs/binder/include/binder/Binder.h
index 802a3bc..135be89 100644
--- a/libs/binder/include/binder/Binder.h
+++ b/libs/binder/include/binder/Binder.h
@@ -50,13 +50,6 @@
                                                       void* cookie = nullptr, uint32_t flags = 0,
                                                       wp<DeathRecipient>* outRecipient = nullptr);
 
-    // Placeholders to test if adding virtual functions here breaks things.
-    // Will be replaced by an actual API once things are verified to work.
-    LIBBINDER_EXPORTED virtual status_t addFrozenStateChangeCallback(
-            const wp<FrozenStateChangeCallback>& callback);
-    LIBBINDER_EXPORTED virtual status_t removeFrozenStateChangeCallback(
-            const wp<FrozenStateChangeCallback>& callback);
-
     LIBBINDER_EXPORTED virtual void* attachObject(const void* objectID, void* object,
                                                   void* cleanupCookie,
                                                   object_cleanup_func func) final;
diff --git a/libs/binder/include/binder/BpBinder.h b/libs/binder/include/binder/BpBinder.h
index 0f52f6d..d7f74c4 100644
--- a/libs/binder/include/binder/BpBinder.h
+++ b/libs/binder/include/binder/BpBinder.h
@@ -66,12 +66,6 @@
                                                       void* cookie = nullptr, uint32_t flags = 0,
                                                       wp<DeathRecipient>* outRecipient = nullptr);
 
-    [[nodiscard]] virtual status_t addFrozenStateChangeCallback(
-            const wp<FrozenStateChangeCallback>& recipient);
-
-    [[nodiscard]] virtual status_t removeFrozenStateChangeCallback(
-            const wp<FrozenStateChangeCallback>& recipient);
-
     LIBBINDER_EXPORTED virtual void* attachObject(const void* objectID, void* object,
                                                   void* cleanupCookie,
                                                   object_cleanup_func func) final;
diff --git a/libs/binder/include/binder/IBinder.h b/libs/binder/include/binder/IBinder.h
index 62d7354..4eb1c08 100644
--- a/libs/binder/include/binder/IBinder.h
+++ b/libs/binder/include/binder/IBinder.h
@@ -102,6 +102,10 @@
      */
     virtual const String16& getInterfaceDescriptor() const = 0;
 
+    /**
+     * Last known alive status, from last call. May be arbitrarily stale.
+     * May be incorrect if a service returns an incorrect status code.
+     */
     virtual bool            isBinderAlive() const = 0;
     virtual status_t        pingBinder() = 0;
     virtual status_t        dump(int fd, const Vector<String16>& args) = 0;
@@ -198,14 +202,9 @@
         virtual void binderDied(const wp<IBinder>& who) = 0;
     };
 
-    class FrozenStateChangeCallback : public virtual RefBase {
-    public:
-        virtual void onStateChanged(const wp<IBinder>& who, bool isFrozen) = 0;
-    };
-
-#if defined(__clang__)
-#pragma clang diagnostic pop
-#endif
+    #if defined(__clang__)
+    #pragma clang diagnostic pop
+    #endif
 
     /**
      * Register the @a recipient for a notification if this binder
@@ -254,12 +253,6 @@
                                             uint32_t flags = 0,
                                             wp<DeathRecipient>* outRecipient = nullptr) = 0;
 
-    // Placeholders. See Binder.h for details.
-    [[nodiscard]] virtual status_t addFrozenStateChangeCallback(
-            const wp<FrozenStateChangeCallback>& callback) = 0;
-    [[nodiscard]] virtual status_t removeFrozenStateChangeCallback(
-            const wp<FrozenStateChangeCallback>& callback) = 0;
-
     virtual bool            checkSubclass(const void* subclassID) const;
 
     typedef void (*object_cleanup_func)(const void* id, void* obj, void* cleanupCookie);
diff --git a/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
index cf7dc1a..bfba79f 100644
--- a/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
+++ b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
@@ -264,7 +264,7 @@
         }
     }
 
-    bool getBoolean(const std::string& key, bool* _Nonnull val) {
+    bool getBoolean(const std::string& key, bool* _Nonnull val) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return APersistableBundle_getBoolean(mPBundle, key.c_str(), val);
         } else {
@@ -272,7 +272,7 @@
         }
     }
 
-    bool getInt(const std::string& key, int32_t* _Nonnull val) {
+    bool getInt(const std::string& key, int32_t* _Nonnull val) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return APersistableBundle_getInt(mPBundle, key.c_str(), val);
         } else {
@@ -280,7 +280,7 @@
         }
     }
 
-    bool getLong(const std::string& key, int64_t* _Nonnull val) {
+    bool getLong(const std::string& key, int64_t* _Nonnull val) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return APersistableBundle_getLong(mPBundle, key.c_str(), val);
         } else {
@@ -288,7 +288,7 @@
         }
     }
 
-    bool getDouble(const std::string& key, double* _Nonnull val) {
+    bool getDouble(const std::string& key, double* _Nonnull val) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return APersistableBundle_getDouble(mPBundle, key.c_str(), val);
         } else {
@@ -300,7 +300,7 @@
         return (char*)malloc(bufferSizeBytes);
     }
 
-    bool getString(const std::string& key, std::string* _Nonnull val) {
+    bool getString(const std::string& key, std::string* _Nonnull val) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             char* outString = nullptr;
             bool ret = APersistableBundle_getString(mPBundle, key.c_str(), &outString,
@@ -318,7 +318,7 @@
     bool getVecInternal(int32_t (*_Nonnull getVec)(const APersistableBundle* _Nonnull,
                                                    const char* _Nonnull, T* _Nullable, int32_t),
                         const APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
-                        std::vector<T>* _Nonnull vec) {
+                        std::vector<T>* _Nonnull vec) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             int32_t bytes = 0;
             // call first with nullptr to get required size in bytes
@@ -340,28 +340,28 @@
         return false;
     }
 
-    bool getBooleanVector(const std::string& key, std::vector<bool>* _Nonnull vec) {
+    bool getBooleanVector(const std::string& key, std::vector<bool>* _Nonnull vec) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getVecInternal<bool>(&APersistableBundle_getBooleanVector, mPBundle, key.c_str(),
                                         vec);
         }
         return false;
     }
-    bool getIntVector(const std::string& key, std::vector<int32_t>* _Nonnull vec) {
+    bool getIntVector(const std::string& key, std::vector<int32_t>* _Nonnull vec) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getVecInternal<int32_t>(&APersistableBundle_getIntVector, mPBundle, key.c_str(),
                                            vec);
         }
         return false;
     }
-    bool getLongVector(const std::string& key, std::vector<int64_t>* _Nonnull vec) {
+    bool getLongVector(const std::string& key, std::vector<int64_t>* _Nonnull vec) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getVecInternal<int64_t>(&APersistableBundle_getLongVector, mPBundle, key.c_str(),
                                            vec);
         }
         return false;
     }
-    bool getDoubleVector(const std::string& key, std::vector<double>* _Nonnull vec) {
+    bool getDoubleVector(const std::string& key, std::vector<double>* _Nonnull vec) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getVecInternal<double>(&APersistableBundle_getDoubleVector, mPBundle,
                                           key.c_str(), vec);
@@ -372,7 +372,7 @@
     // Takes ownership of and frees the char** and its elements.
     // Creates a new set or vector based on the array of char*.
     template <typename T>
-    T moveStringsInternal(char* _Nullable* _Nonnull strings, int32_t bufferSizeBytes) {
+    T moveStringsInternal(char* _Nullable* _Nonnull strings, int32_t bufferSizeBytes) const {
         if (strings && bufferSizeBytes > 0) {
             int32_t num = bufferSizeBytes / sizeof(char*);
             T ret;
@@ -386,7 +386,7 @@
         return T();
     }
 
-    bool getStringVector(const std::string& key, std::vector<std::string>* _Nonnull vec) {
+    bool getStringVector(const std::string& key, std::vector<std::string>* _Nonnull vec) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             int32_t bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), nullptr, 0,
                                                                &stringAllocator, nullptr);
@@ -403,7 +403,7 @@
         return false;
     }
 
-    bool getPersistableBundle(const std::string& key, PersistableBundle* _Nonnull val) {
+    bool getPersistableBundle(const std::string& key, PersistableBundle* _Nonnull val) const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             APersistableBundle* bundle = nullptr;
             bool ret = APersistableBundle_getPersistableBundle(mPBundle, key.c_str(), &bundle);
@@ -422,7 +422,7 @@
                                              int32_t bufferSizeBytes,
                                              APersistableBundle_stringAllocator stringAllocator,
                                              void* _Nullable),
-            const APersistableBundle* _Nonnull pBundle) {
+            const APersistableBundle* _Nonnull pBundle) const {
         // call first with nullptr to get required size in bytes
         int32_t bytes = getTypedKeys(pBundle, nullptr, 0, &stringAllocator, nullptr);
         if (bytes > 0) {
@@ -435,84 +435,84 @@
         return {};
     }
 
-    std::set<std::string> getBooleanKeys() {
+    std::set<std::string> getBooleanKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getBooleanKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getIntKeys() {
+    std::set<std::string> getIntKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getIntKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getLongKeys() {
+    std::set<std::string> getLongKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getLongKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getDoubleKeys() {
+    std::set<std::string> getDoubleKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getDoubleKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getStringKeys() {
+    std::set<std::string> getStringKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getStringKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getBooleanVectorKeys() {
+    std::set<std::string> getBooleanVectorKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getBooleanVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getIntVectorKeys() {
+    std::set<std::string> getIntVectorKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getIntVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getLongVectorKeys() {
+    std::set<std::string> getLongVectorKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getLongVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getDoubleVectorKeys() {
+    std::set<std::string> getDoubleVectorKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getDoubleVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getStringVectorKeys() {
+    std::set<std::string> getStringVectorKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getStringVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getPersistableBundleKeys() {
+    std::set<std::string> getPersistableBundleKeys() const {
         if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
             return getKeys(&APersistableBundle_getPersistableBundleKeys, mPBundle);
         } else {
             return {};
         }
     }
-    std::set<std::string> getMonKeys() {
+    std::set<std::string> getMonKeys() const {
         // :P
         return {"c(o,o)b", "c(o,o)b"};
     }
diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 9b1b64a..3efd84f 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp
@@ -1168,7 +1168,8 @@
     socklen_t len = sizeof(serverAddr);
     ret = getsockname(serverFd.get(), reinterpret_cast<sockaddr*>(&serverAddr), &len);
     LOG_ALWAYS_FATAL_IF(0 != ret, "Failed to getsockname: %s", strerror(errno));
-    LOG_ALWAYS_FATAL_IF(len < sizeof(serverAddr), "getsockname didn't read the full addr struct");
+    LOG_ALWAYS_FATAL_IF(len < static_cast<socklen_t>(sizeof(serverAddr)),
+                        "getsockname didn't read the full addr struct");
 
     ret = TEMP_FAILURE_RETRY(listen(serverFd.get(), 1 /*backlog*/));
     LOG_ALWAYS_FATAL_IF(0 != ret, "Could not listen socket on port %u: %s", serverAddr.svm_port,
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index c2a7ebb..45ebc66 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -258,6 +258,7 @@
     ],
 
     shared_libs: [
+        "android.companion.virtualdevice.flags-aconfig-cc-host",
         "libbase",
         "libbinder",
         "libbinder_ndk",
diff --git a/libs/input/VirtualInputDevice.cpp b/libs/input/VirtualInputDevice.cpp
index b73ee65..0579967 100644
--- a/libs/input/VirtualInputDevice.cpp
+++ b/libs/input/VirtualInputDevice.cpp
@@ -18,6 +18,7 @@
 
 #include <android/input.h>
 #include <android/keycodes.h>
+#include <android_companion_virtualdevice_flags.h>
 #include <fcntl.h>
 #include <input/Input.h>
 #include <input/VirtualInputDevice.h>
@@ -40,6 +41,8 @@
 
 namespace android {
 
+namespace vd_flags = android::companion::virtualdevice::flags;
+
 VirtualInputDevice::VirtualInputDevice(unique_fd fd) : mFd(std::move(fd)) {}
 
 VirtualInputDevice::~VirtualInputDevice() {
@@ -253,7 +256,10 @@
         // clang-format on
 };
 
-VirtualMouse::VirtualMouse(unique_fd fd) : VirtualInputDevice(std::move(fd)) {}
+VirtualMouse::VirtualMouse(unique_fd fd)
+      : VirtualInputDevice(std::move(fd)),
+        mAccumulatedHighResScrollX(0),
+        mAccumulatedHighResScrollY(0) {}
 
 VirtualMouse::~VirtualMouse() {}
 
@@ -272,9 +278,47 @@
 
 bool VirtualMouse::writeScrollEvent(float xAxisMovement, float yAxisMovement,
                                     std::chrono::nanoseconds eventTime) {
-    return writeInputEvent(EV_REL, REL_HWHEEL, xAxisMovement, eventTime) &&
-            writeInputEvent(EV_REL, REL_WHEEL, yAxisMovement, eventTime) &&
-            writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+    if (!vd_flags::high_resolution_scroll()) {
+        return writeInputEvent(EV_REL, REL_HWHEEL, static_cast<int32_t>(xAxisMovement),
+                               eventTime) &&
+                writeInputEvent(EV_REL, REL_WHEEL, static_cast<int32_t>(yAxisMovement),
+                                eventTime) &&
+                writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+    }
+
+    const auto highResScrollX =
+            static_cast<int32_t>(xAxisMovement * kEvdevHighResScrollUnitsPerDetent);
+    const auto highResScrollY =
+            static_cast<int32_t>(yAxisMovement * kEvdevHighResScrollUnitsPerDetent);
+    bool highResScrollResult =
+            writeInputEvent(EV_REL, REL_HWHEEL_HI_RES, highResScrollX, eventTime) &&
+            writeInputEvent(EV_REL, REL_WHEEL_HI_RES, highResScrollY, eventTime);
+    if (!highResScrollResult) {
+        return false;
+    }
+
+    // According to evdev spec, a high-resolution mouse needs to emit REL_WHEEL / REL_HWHEEL events
+    // in addition to high-res scroll events. Regular scroll events can approximate high-res scroll
+    // events, so we send a regular scroll event when the accumulated scroll motion reaches a detent
+    // (single mouse wheel click).
+    mAccumulatedHighResScrollX += highResScrollX;
+    mAccumulatedHighResScrollY += highResScrollY;
+    const int32_t scrollX = mAccumulatedHighResScrollX / kEvdevHighResScrollUnitsPerDetent;
+    const int32_t scrollY = mAccumulatedHighResScrollY / kEvdevHighResScrollUnitsPerDetent;
+    if (scrollX != 0) {
+        if (!writeInputEvent(EV_REL, REL_HWHEEL, scrollX, eventTime)) {
+            return false;
+        }
+        mAccumulatedHighResScrollX %= kEvdevHighResScrollUnitsPerDetent;
+    }
+    if (scrollY != 0) {
+        if (!writeInputEvent(EV_REL, REL_WHEEL, scrollY, eventTime)) {
+            return false;
+        }
+        mAccumulatedHighResScrollY %= kEvdevHighResScrollUnitsPerDetent;
+    }
+
+    return writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
 }
 
 // --- VirtualTouchscreen ---
@@ -510,14 +554,38 @@
 }
 
 // --- VirtualRotaryEncoder ---
-VirtualRotaryEncoder::VirtualRotaryEncoder(unique_fd fd) : VirtualInputDevice(std::move(fd)) {}
+VirtualRotaryEncoder::VirtualRotaryEncoder(unique_fd fd)
+      : VirtualInputDevice(std::move(fd)), mAccumulatedHighResScrollAmount(0) {}
 
 VirtualRotaryEncoder::~VirtualRotaryEncoder() {}
 
 bool VirtualRotaryEncoder::writeScrollEvent(float scrollAmount,
                                             std::chrono::nanoseconds eventTime) {
-    return writeInputEvent(EV_REL, REL_WHEEL, static_cast<int32_t>(scrollAmount), eventTime) &&
-            writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+    if (!vd_flags::high_resolution_scroll()) {
+        return writeInputEvent(EV_REL, REL_WHEEL, static_cast<int32_t>(scrollAmount), eventTime) &&
+                writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+    }
+
+    const auto highResScrollAmount =
+            static_cast<int32_t>(scrollAmount * kEvdevHighResScrollUnitsPerDetent);
+    if (!writeInputEvent(EV_REL, REL_WHEEL_HI_RES, highResScrollAmount, eventTime)) {
+        return false;
+    }
+
+    // According to evdev spec, a high-resolution scroll device needs to emit REL_WHEEL / REL_HWHEEL
+    // events in addition to high-res scroll events. Regular scroll events can approximate high-res
+    // scroll events, so we send a regular scroll event when the accumulated scroll motion reaches a
+    // detent (single wheel click).
+    mAccumulatedHighResScrollAmount += highResScrollAmount;
+    const int32_t scroll = mAccumulatedHighResScrollAmount / kEvdevHighResScrollUnitsPerDetent;
+    if (scroll != 0) {
+        if (!writeInputEvent(EV_REL, REL_WHEEL, scroll, eventTime)) {
+            return false;
+        }
+        mAccumulatedHighResScrollAmount %= kEvdevHighResScrollUnitsPerDetent;
+    }
+
+    return writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
 }
 
 } // namespace android
diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index a2192cb..cbe021b 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -15,13 +15,6 @@
   bug: "271455682"
 }
 
-flag {
-  name: "enable_gestures_library_timer_provider"
-  namespace: "input"
-  description: "Set to true to enable timer support for the touchpad Gestures library"
-  bug: "297192727"
- }
-
  flag {
   name: "enable_input_event_tracing"
   namespace: "input"
@@ -87,13 +80,6 @@
 }
 
 flag {
-  name: "remove_pointer_event_tracking_in_wm"
-  namespace: "input"
-  description: "Remove pointer event tracking in WM after the Pointer Icon Refactor"
-  bug: "315321016"
-}
-
-flag {
   name: "enable_new_mouse_pointer_ballistics"
   namespace: "input"
   description: "Change the acceleration curves for mouse pointer movements to match the touchpad ones"
diff --git a/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp b/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp
index f49469c..e710613 100644
--- a/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp
+++ b/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp
@@ -52,7 +52,7 @@
     const int32_t action;
     const nsecs_t downTime;
     const uint32_t seq;
-    const int32_t eventId;
+    int32_t eventId;
     const int32_t deviceId = 1;
     const uint32_t source = AINPUT_SOURCE_TOUCHSCREEN;
     const ui::LogicalDisplayId displayId = ui::LogicalDisplayId::DEFAULT;
@@ -291,6 +291,7 @@
     void publishAndConsumeKeyEvent();
     void publishAndConsumeMotionStream();
     void publishAndConsumeMotionDown(nsecs_t downTime);
+    void publishAndConsumeSinglePointerMultipleSamples(const size_t nSamples);
     void publishAndConsumeBatchedMotionMove(nsecs_t downTime);
     void publishAndConsumeFocusEvent();
     void publishAndConsumeCaptureEvent();
@@ -298,6 +299,7 @@
     void publishAndConsumeTouchModeEvent();
     void publishAndConsumeMotionEvent(int32_t action, nsecs_t downTime,
                                       const std::vector<Pointer>& pointers);
+
     void TearDown() override {
         // Destroy the consumer, flushing any of the pending ack's.
         sendMessage(LooperMessage::DESTROY_CONSUMER);
@@ -519,6 +521,123 @@
                                  {Pointer{.id = 0, .x = 20, .y = 30}});
 }
 
+/*
+ * Decompose a potential multi-sampled MotionEvent into multiple MotionEvents
+ * with a single sample.
+ */
+std::vector<MotionEvent> splitBatchedMotionEvent(const MotionEvent& batchedMotionEvent) {
+    std::vector<MotionEvent> singleMotionEvents;
+    const size_t batchSize = batchedMotionEvent.getHistorySize() + 1;
+    for (size_t i = 0; i < batchSize; ++i) {
+        MotionEvent singleMotionEvent;
+        singleMotionEvent
+                .initialize(batchedMotionEvent.getId(), batchedMotionEvent.getDeviceId(),
+                            batchedMotionEvent.getSource(), batchedMotionEvent.getDisplayId(),
+                            batchedMotionEvent.getHmac(), batchedMotionEvent.getAction(),
+                            batchedMotionEvent.getActionButton(), batchedMotionEvent.getFlags(),
+                            batchedMotionEvent.getEdgeFlags(), batchedMotionEvent.getMetaState(),
+                            batchedMotionEvent.getButtonState(),
+                            batchedMotionEvent.getClassification(),
+                            batchedMotionEvent.getTransform(), batchedMotionEvent.getXPrecision(),
+                            batchedMotionEvent.getYPrecision(),
+                            batchedMotionEvent.getRawXCursorPosition(),
+                            batchedMotionEvent.getRawYCursorPosition(),
+                            batchedMotionEvent.getRawTransform(), batchedMotionEvent.getDownTime(),
+                            batchedMotionEvent.getHistoricalEventTime(/*historicalIndex=*/i),
+                            batchedMotionEvent.getPointerCount(),
+                            batchedMotionEvent.getPointerProperties(),
+                            (batchedMotionEvent.getSamplePointerCoords() + i));
+        singleMotionEvents.push_back(singleMotionEvent);
+    }
+    return singleMotionEvents;
+}
+
+/*
+ * Simulates a single pointer touching the screen and leaving it there for a period of time.
+ * Publishes a DOWN event and consumes it right away. Then, publishes a sequence of MOVE
+ * samples for the same pointer, and waits until it has been consumed. Splits batched MotionEvents
+ * into individual samples. Checks the consumed MotionEvents against the published ones.
+ * This test is non-deterministic because it depends on the timing of arrival of events to the
+ * socket.
+ *
+ * @param nSamples The number of MOVE samples to publish before attempting consumption.
+ */
+void InputPublisherAndConsumerNoResamplingTest::publishAndConsumeSinglePointerMultipleSamples(
+        const size_t nSamples) {
+    const nsecs_t downTime = systemTime(SYSTEM_TIME_MONOTONIC);
+    const Pointer pointer(0, 20, 30);
+
+    const PublishMotionArgs argsDown(AMOTION_EVENT_ACTION_DOWN, downTime, {pointer}, mSeq);
+    const nsecs_t publishTimeOfDown = systemTime(SYSTEM_TIME_MONOTONIC);
+    publishMotionEvent(*mPublisher, argsDown);
+
+    // Consume the DOWN event.
+    ASSERT_TRUE(mMotionEvents.popWithTimeout(TIMEOUT).has_value());
+
+    verifyFinishedSignal(*mPublisher, mSeq, publishTimeOfDown);
+
+    std::vector<nsecs_t> publishTimes;
+    std::vector<PublishMotionArgs> argsMoves;
+    std::queue<uint32_t> publishedSequenceNumbers;
+
+    // Block Looper to increase the chance of batching events
+    {
+        std::scoped_lock l(mLock);
+        mLooperMayProceed = false;
+    }
+    sendMessage(LooperMessage::BLOCK_LOOPER);
+    {
+        std::unique_lock l(mLock);
+        mNotifyLooperWaiting.wait(l, [this] { return mLooperIsBlocked; });
+    }
+
+    uint32_t firstSampleId;
+    for (size_t i = 0; i < nSamples; ++i) {
+        publishedSequenceNumbers.push(++mSeq);
+        PublishMotionArgs argsMove(AMOTION_EVENT_ACTION_MOVE, downTime, {pointer}, mSeq);
+        // A batched MotionEvent only has a single event id, currently determined when the
+        // MotionEvent is initialized. Therefore, to pass the eventId comparisons inside
+        // verifyArgsEqualToEvent, we need to override the event id of the published args to match
+        // the event id of the first sample inside the MotionEvent.
+        if (i == 0) {
+            firstSampleId = argsMove.eventId;
+        }
+        argsMove.eventId = firstSampleId;
+        publishTimes.push_back(systemTime(SYSTEM_TIME_MONOTONIC));
+        argsMoves.push_back(argsMove);
+        publishMotionEvent(*mPublisher, argsMove);
+    }
+
+    std::vector<MotionEvent> singleSampledMotionEvents;
+
+    // Unblock Looper
+    {
+        std::scoped_lock l(mLock);
+        mLooperMayProceed = true;
+    }
+    mNotifyLooperMayProceed.notify_all();
+
+    // We have no control over the socket behavior, so the consumer can receive
+    // the motion as a batched event, or as a sequence of multiple single-sample MotionEvents (or a
+    // mix of those)
+    while (singleSampledMotionEvents.size() != nSamples) {
+        const std::optional<std::unique_ptr<MotionEvent>> batchedMotionEvent =
+                mMotionEvents.popWithTimeout(TIMEOUT);
+        // The events received by these calls are never null
+        std::vector<MotionEvent> splitMotionEvents = splitBatchedMotionEvent(**batchedMotionEvent);
+        singleSampledMotionEvents.insert(singleSampledMotionEvents.end(), splitMotionEvents.begin(),
+                                         splitMotionEvents.end());
+    }
+
+    // Consumer can choose to finish events in any order. For simplicity,
+    // we verify the events in sequence (since that is how the test is implemented).
+    for (size_t i = 0; i < nSamples; ++i) {
+        verifyArgsEqualToEvent(argsMoves[i], singleSampledMotionEvents[i]);
+        verifyFinishedSignal(*mPublisher, publishedSequenceNumbers.front(), publishTimes[i]);
+        publishedSequenceNumbers.pop();
+    }
+}
+
 void InputPublisherAndConsumerNoResamplingTest::publishAndConsumeBatchedMotionMove(
         nsecs_t downTime) {
     uint32_t seq = mSeq++;
@@ -814,4 +933,8 @@
     ASSERT_NO_FATAL_FAILURE(publishAndConsumeTouchModeEvent());
 }
 
+TEST_F(InputPublisherAndConsumerNoResamplingTest, PublishAndConsumeSinglePointer) {
+    publishAndConsumeSinglePointerMultipleSamples(3);
+}
+
 } // namespace android
diff --git a/libs/nativewindow/AHardwareBuffer.cpp b/libs/nativewindow/AHardwareBuffer.cpp
index 5261287..dd78049 100644
--- a/libs/nativewindow/AHardwareBuffer.cpp
+++ b/libs/nativewindow/AHardwareBuffer.cpp
@@ -300,7 +300,9 @@
       if (result == 0) {
         outPlanes->planeCount = 3;
         outPlanes->planes[0].data = yuvData.y;
-        if (format == AHARDWAREBUFFER_FORMAT_YCbCr_P010) {
+        // P010 is word-aligned 10-bit semiplaner, and YCbCr_422_I is a single interleaved plane
+        if (format == AHARDWAREBUFFER_FORMAT_YCbCr_P010 ||
+            format == AHARDWAREBUFFER_FORMAT_YCbCr_422_I) {
             outPlanes->planes[0].pixelStride = 2;
         } else {
             outPlanes->planes[0].pixelStride = 1;
diff --git a/libs/tracing_perfetto/Android.bp b/libs/tracing_perfetto/Android.bp
index 3a4c869..b5c56c5 100644
--- a/libs/tracing_perfetto/Android.bp
+++ b/libs/tracing_perfetto/Android.bp
@@ -40,6 +40,7 @@
     ],
 
     shared_libs: [
+        "libbase",
         "libcutils",
         "libperfetto_c",
         "android.os.flags-aconfig-cc-host",
diff --git a/libs/tracing_perfetto/include/trace_result.h b/libs/tracing_perfetto/include/trace_result.h
deleted file mode 100644
index f7581fc..0000000
--- a/libs/tracing_perfetto/include/trace_result.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef TRACE_RESULT_H
-#define TRACE_RESULT_H
-
-namespace tracing_perfetto {
-
-enum class Result {
-  SUCCESS,
-  NOT_SUPPORTED,
-  INVALID_INPUT,
-};
-
-}
-
-#endif  // TRACE_RESULT_H
diff --git a/libs/tracing_perfetto/include/tracing_perfetto.h b/libs/tracing_perfetto/include/tracing_perfetto.h
index 2c1c2a4..0b2b0af 100644
--- a/libs/tracing_perfetto/include/tracing_perfetto.h
+++ b/libs/tracing_perfetto/include/tracing_perfetto.h
@@ -19,35 +19,32 @@
 
 #include <stdint.h>
 
-#include "trace_result.h"
-
 namespace tracing_perfetto {
 
 void registerWithPerfetto(bool test = false);
 
-Result traceBegin(uint64_t category, const char* name);
+void traceBegin(uint64_t category, const char* name);
 
-Result traceEnd(uint64_t category);
+void traceEnd(uint64_t category);
 
-Result traceAsyncBegin(uint64_t category, const char* name, int32_t cookie);
+void traceAsyncBegin(uint64_t category, const char* name, int32_t cookie);
 
-Result traceAsyncEnd(uint64_t category, const char* name, int32_t cookie);
+void traceAsyncEnd(uint64_t category, const char* name, int32_t cookie);
 
-Result traceAsyncBeginForTrack(uint64_t category, const char* name,
+void traceAsyncBeginForTrack(uint64_t category, const char* name,
                                const char* trackName, int32_t cookie);
 
-Result traceAsyncEndForTrack(uint64_t category, const char* trackName,
+void traceAsyncEndForTrack(uint64_t category, const char* trackName,
                              int32_t cookie);
 
-Result traceInstant(uint64_t category, const char* name);
+void traceInstant(uint64_t category, const char* name);
 
-Result traceInstantForTrack(uint64_t category, const char* trackName,
+void traceInstantForTrack(uint64_t category, const char* trackName,
                             const char* name);
 
-Result traceCounter(uint64_t category, const char* name, int64_t value);
+void traceCounter(uint64_t category, const char* name, int64_t value);
 
 bool isTagEnabled(uint64_t category);
-
 }  // namespace tracing_perfetto
 
 #endif  // TRACING_PERFETTO_H
diff --git a/libs/tracing_perfetto/tests/Android.bp b/libs/tracing_perfetto/tests/Android.bp
index a35b0e0..d203467 100644
--- a/libs/tracing_perfetto/tests/Android.bp
+++ b/libs/tracing_perfetto/tests/Android.bp
@@ -26,6 +26,7 @@
     static_libs: [
         "libflagtest",
         "libgmock",
+        "perfetto_trace_protos",
     ],
     cflags: [
         "-Wall",
@@ -35,6 +36,8 @@
         "android.os.flags-aconfig-cc-host",
         "libbase",
         "libperfetto_c",
+        "liblog",
+        "libprotobuf-cpp-lite",
         "libtracing_perfetto",
     ],
     srcs: [
diff --git a/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp b/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp
index 7716b9a..e9fee2e 100644
--- a/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp
+++ b/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp
@@ -16,10 +16,10 @@
 
 #include "tracing_perfetto.h"
 
-#include <thread>
-
 #include <android_os.h>
 #include <flag_macros.h>
+#include <thread>
+#include <unistd.h>
 
 #include "gtest/gtest.h"
 #include "perfetto/public/abi/data_source_abi.h"
@@ -45,67 +45,182 @@
 #include "trace_categories.h"
 #include "utils.h"
 
+#include "protos/perfetto/trace/trace.pb.h"
+#include "protos/perfetto/trace/trace_packet.pb.h"
+#include "protos/perfetto/trace/interned_data/interned_data.pb.h"
+
+#include <fstream>
+#include <iterator>
 namespace tracing_perfetto {
 
-using ::perfetto::shlib::test_utils::AllFieldsWithId;
-using ::perfetto::shlib::test_utils::FieldView;
-using ::perfetto::shlib::test_utils::IdFieldView;
-using ::perfetto::shlib::test_utils::MsgField;
-using ::perfetto::shlib::test_utils::PbField;
-using ::perfetto::shlib::test_utils::StringField;
+using ::perfetto::protos::Trace;
+using ::perfetto::protos::TracePacket;
+using ::perfetto::protos::EventCategory;
+using ::perfetto::protos::EventName;
+using ::perfetto::protos::FtraceEvent;
+using ::perfetto::protos::FtraceEventBundle;
+using ::perfetto::protos::InternedData;
+
 using ::perfetto::shlib::test_utils::TracingSession;
-using ::perfetto::shlib::test_utils::VarIntField;
-using ::testing::_;
-using ::testing::ElementsAre;
-using ::testing::UnorderedElementsAre;
 
 const auto PERFETTO_SDK_TRACING = ACONFIG_FLAG(android::os, perfetto_sdk_tracing);
 
+// TODO(b/303199244): Add tests for all the library functions.
 class TracingPerfettoTest : public testing::Test {
  protected:
   void SetUp() override {
-    tracing_perfetto::registerWithPerfetto(true /* test */);
+    tracing_perfetto::registerWithPerfetto(false /* test */);
   }
 };
 
-// TODO(b/303199244): Add tests for all the library functions.
-
-TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstant,
-                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
-  TracingSession tracing_session =
-      TracingSession::Builder().set_data_source_name("track_event").Build();
-  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, "");
-
+Trace stopSession(TracingSession& tracing_session) {
+  tracing_session.FlushBlocking(5000);
   tracing_session.StopBlocking();
   std::vector<uint8_t> data = tracing_session.ReadBlocking();
+  std::string data_string(data.begin(), data.end());
+
+  perfetto::protos::Trace trace;
+  trace.ParseFromString(data_string);
+
+  return trace;
+}
+
+void verifyTrackEvent(const Trace& trace, const std::string expected_category,
+                      const std::string& expected_name) {
   bool found = false;
-  for (struct PerfettoPbDecoderField trace_field : FieldView(data)) {
-    ASSERT_THAT(trace_field, PbField(perfetto_protos_Trace_packet_field_number,
-                                     MsgField(_)));
-    IdFieldView track_event(
-        trace_field, perfetto_protos_TracePacket_track_event_field_number);
-    if (track_event.size() == 0) {
-      continue;
+  for (const TracePacket& packet: trace.packet()) {
+    if (packet.has_track_event() && packet.has_interned_data()) {
+
+      const InternedData& interned_data = packet.interned_data();
+      if (interned_data.event_categories_size() > 0) {
+        const EventCategory& event_category = packet.interned_data().event_categories(0);
+        if (event_category.name() == expected_category) {
+          found = true;
+        }
+      }
+
+      if (interned_data.event_names_size() > 0) {
+        const EventName& event_name = packet.interned_data().event_names(0);
+        if (event_name.name() == expected_name) {
+          found &= true;
+        }
+      }
+
+      if (found) {
+        break;
+      }
     }
-    found = true;
-    IdFieldView cat_iid_fields(
-        track_event.front(),
-        perfetto_protos_TrackEvent_category_iids_field_number);
-    ASSERT_THAT(cat_iid_fields, ElementsAre(VarIntField(_)));
-    uint64_t cat_iid = cat_iid_fields.front().value.integer64;
-    EXPECT_THAT(
-        trace_field,
-        AllFieldsWithId(
-            perfetto_protos_TracePacket_interned_data_field_number,
-            ElementsAre(AllFieldsWithId(
-                perfetto_protos_InternedData_event_categories_field_number,
-                ElementsAre(MsgField(UnorderedElementsAre(
-                    PbField(perfetto_protos_EventCategory_iid_field_number,
-                            VarIntField(cat_iid)),
-                    PbField(perfetto_protos_EventCategory_name_field_number,
-                            StringField("input")))))))));
   }
   EXPECT_TRUE(found);
 }
 
-}  // namespace tracing_perfetto
\ No newline at end of file
+void verifyAtraceEvent(const Trace& trace, const std::string& expected_name) {
+  std::string expected_print_buf = "I|" + std::to_string(gettid()) + "|" + expected_name + "\n";
+
+  bool found = false;
+  for (const TracePacket& packet: trace.packet()) {
+    if (packet.has_ftrace_events()) {
+      const FtraceEventBundle& ftrace_events_bundle = packet.ftrace_events();
+
+      if (ftrace_events_bundle.event_size() > 0) {
+        const FtraceEvent& ftrace_event = ftrace_events_bundle.event(0);
+        if (ftrace_event.has_print() && (ftrace_event.print().buf() == expected_print_buf)) {
+          found = true;
+          break;
+        }
+      }
+    }
+  }
+  EXPECT_TRUE(found);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfetto,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfetto";
+
+  TracingSession tracing_session =
+      TracingSession::Builder().add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyTrackEvent(trace, event_category, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithAtrace,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithAtrace";
+
+  TracingSession tracing_session =
+      TracingSession::Builder().add_atrace_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyAtraceEvent(trace, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfettoAndAtrace,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfettoAndAtrace";
+
+  TracingSession tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyAtraceEvent(trace, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfettoAndAtraceAndPreferTrackEvent,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfettoAndAtraceAndPreferTrackEvent";
+
+  TracingSession tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_atrace_category_prefer_sdk(event_category)
+      .add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyTrackEvent(trace, event_category, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfettoAndAtraceConcurrently,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfettoAndAtraceConcurrently";
+
+  TracingSession perfetto_tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_atrace_category_prefer_sdk(event_category)
+      .add_enabled_category(event_category).Build();
+
+  TracingSession atrace_tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace atrace_trace = stopSession(atrace_tracing_session);
+  Trace perfetto_trace = stopSession(perfetto_tracing_session);
+
+  verifyAtraceEvent(atrace_trace, event_name);
+  verifyAtraceEvent(perfetto_trace, event_name);
+}
+}  // namespace tracing_perfetto
diff --git a/libs/tracing_perfetto/tests/utils.cpp b/libs/tracing_perfetto/tests/utils.cpp
index 9c42028..8c4d4a8 100644
--- a/libs/tracing_perfetto/tests/utils.cpp
+++ b/libs/tracing_perfetto/tests/utils.cpp
@@ -26,6 +26,11 @@
 #include "perfetto/public/protos/config/track_event/track_event_config.pzc.h"
 #include "perfetto/public/tracing_session.h"
 
+#include "protos/perfetto/config/ftrace/ftrace_config.pb.h"
+#include "protos/perfetto/config/track_event/track_event_config.pb.h"
+#include "protos/perfetto/config/data_source_config.pb.h"
+#include "protos/perfetto/config/trace_config.pb.h"
+
 namespace perfetto {
 namespace shlib {
 namespace test_utils {
@@ -44,63 +49,54 @@
 }  // namespace
 
 TracingSession TracingSession::Builder::Build() {
-  struct PerfettoPbMsgWriter writer;
-  struct PerfettoHeapBuffer* hb = PerfettoHeapBufferCreate(&writer.writer);
+  perfetto::protos::TraceConfig trace_config;
+  trace_config.add_buffers()->set_size_kb(1024);
 
-  struct perfetto_protos_TraceConfig cfg;
-  PerfettoPbMsgInit(&cfg.msg, &writer);
+  auto* track_event_ds_config = trace_config.add_data_sources()->mutable_config();
+  auto* ftrace_ds_config = trace_config.add_data_sources()->mutable_config();
+
+  track_event_ds_config->set_name("track_event");
+  track_event_ds_config->set_target_buffer(0);
+
+  ftrace_ds_config->set_name("linux.ftrace");
+  ftrace_ds_config->set_target_buffer(0);
 
   {
-    struct perfetto_protos_TraceConfig_BufferConfig buffers;
-    perfetto_protos_TraceConfig_begin_buffers(&cfg, &buffers);
-
-    perfetto_protos_TraceConfig_BufferConfig_set_size_kb(&buffers, 1024);
-
-    perfetto_protos_TraceConfig_end_buffers(&cfg, &buffers);
-  }
-
-  {
-    struct perfetto_protos_TraceConfig_DataSource data_sources;
-    perfetto_protos_TraceConfig_begin_data_sources(&cfg, &data_sources);
-
-    {
-      struct perfetto_protos_DataSourceConfig ds_cfg;
-      perfetto_protos_TraceConfig_DataSource_begin_config(&data_sources,
-                                                          &ds_cfg);
-
-      perfetto_protos_DataSourceConfig_set_cstr_name(&ds_cfg,
-                                                     data_source_name_.c_str());
-      if (!enabled_categories_.empty() && !disabled_categories_.empty()) {
-        perfetto_protos_TrackEventConfig te_cfg;
-        perfetto_protos_DataSourceConfig_begin_track_event_config(&ds_cfg,
-                                                                  &te_cfg);
-        for (const std::string& cat : enabled_categories_) {
-          perfetto_protos_TrackEventConfig_set_enabled_categories(
-              &te_cfg, cat.data(), cat.size());
-        }
-        for (const std::string& cat : disabled_categories_) {
-          perfetto_protos_TrackEventConfig_set_disabled_categories(
-              &te_cfg, cat.data(), cat.size());
-        }
-        perfetto_protos_DataSourceConfig_end_track_event_config(&ds_cfg,
-                                                                &te_cfg);
+    auto* ftrace_config = ftrace_ds_config->mutable_ftrace_config();
+    if (!atrace_categories_.empty()) {
+      ftrace_config->add_ftrace_events("ftrace/print");
+      for (const std::string& cat : atrace_categories_) {
+        ftrace_config->add_atrace_categories(cat);
       }
 
-      perfetto_protos_TraceConfig_DataSource_end_config(&data_sources, &ds_cfg);
+      for (const std::string& cat : atrace_categories_prefer_sdk_) {
+        ftrace_config->add_atrace_categories_prefer_sdk(cat);
+      }
     }
-
-    perfetto_protos_TraceConfig_end_data_sources(&cfg, &data_sources);
   }
-  size_t cfg_size = PerfettoStreamWriterGetWrittenSize(&writer.writer);
-  std::unique_ptr<uint8_t[]> ser(new uint8_t[cfg_size]);
-  PerfettoHeapBufferCopyInto(hb, &writer.writer, ser.get(), cfg_size);
-  PerfettoHeapBufferDestroy(hb, &writer.writer);
+
+  {
+    auto* track_event_config = track_event_ds_config->mutable_track_event_config();
+    if (!enabled_categories_.empty() || !disabled_categories_.empty()) {
+      for (const std::string& cat : enabled_categories_) {
+        track_event_config->add_enabled_categories(cat);
+      }
+
+      for (const std::string& cat : disabled_categories_) {
+        track_event_config->add_disabled_categories(cat);
+      }
+    }
+  }
 
   struct PerfettoTracingSessionImpl* ts =
-      PerfettoTracingSessionCreate(PERFETTO_BACKEND_IN_PROCESS);
+      PerfettoTracingSessionCreate(PERFETTO_BACKEND_SYSTEM);
 
-  PerfettoTracingSessionSetup(ts, ser.get(), cfg_size);
+  std::string trace_config_string;
+  trace_config.SerializeToString(&trace_config_string);
 
+  PerfettoTracingSessionSetup(ts, trace_config_string.data(), trace_config_string.length());
+
+  // Fails to start here
   PerfettoTracingSessionStartBlocking(ts);
 
   return TracingSession::Adopt(ts);
diff --git a/libs/tracing_perfetto/tests/utils.h b/libs/tracing_perfetto/tests/utils.h
index 4353554..8edb414 100644
--- a/libs/tracing_perfetto/tests/utils.h
+++ b/libs/tracing_perfetto/tests/utils.h
@@ -74,10 +74,6 @@
   class Builder {
    public:
     Builder() = default;
-    Builder& set_data_source_name(std::string data_source_name) {
-      data_source_name_ = std::move(data_source_name);
-      return *this;
-    }
     Builder& add_enabled_category(std::string category) {
       enabled_categories_.push_back(std::move(category));
       return *this;
@@ -86,12 +82,21 @@
       disabled_categories_.push_back(std::move(category));
       return *this;
     }
+    Builder& add_atrace_category(std::string category) {
+      atrace_categories_.push_back(std::move(category));
+      return *this;
+    }
+    Builder& add_atrace_category_prefer_sdk(std::string category) {
+      atrace_categories_prefer_sdk_.push_back(std::move(category));
+      return *this;
+    }
     TracingSession Build();
 
    private:
-    std::string data_source_name_;
     std::vector<std::string> enabled_categories_;
     std::vector<std::string> disabled_categories_;
+    std::vector<std::string> atrace_categories_;
+    std::vector<std::string> atrace_categories_prefer_sdk_;
   };
 
   static TracingSession Adopt(struct PerfettoTracingSessionImpl*);
diff --git a/libs/tracing_perfetto/tracing_perfetto.cpp b/libs/tracing_perfetto/tracing_perfetto.cpp
index 6f716ee..fc5336d 100644
--- a/libs/tracing_perfetto/tracing_perfetto.cpp
+++ b/libs/tracing_perfetto/tracing_perfetto.cpp
@@ -28,116 +28,112 @@
   internal::registerWithPerfetto(test);
 }
 
-Result traceBegin(uint64_t category, const char* name) {
+void traceBegin(uint64_t category, const char* name) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceBegin(*perfettoTeCategory, name);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_begin(category, name);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceBegin(*perfettoTeCategory, name);
   }
 }
 
-Result traceEnd(uint64_t category) {
+void traceEnd(uint64_t category) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceEnd(*perfettoTeCategory);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_end(category);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceEnd(*perfettoTeCategory);
   }
 }
 
-Result traceAsyncBegin(uint64_t category, const char* name, int32_t cookie) {
+void traceAsyncBegin(uint64_t category, const char* name, int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncBegin(*perfettoTeCategory, name, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_begin(category, name, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncBegin(*perfettoTeCategory, name, cookie);
   }
 }
 
-Result traceAsyncEnd(uint64_t category, const char* name, int32_t cookie) {
+void traceAsyncEnd(uint64_t category, const char* name, int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncEnd(*perfettoTeCategory, name, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_end(category, name, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncEnd(*perfettoTeCategory, name, cookie);
   }
 }
 
-Result traceAsyncBeginForTrack(uint64_t category, const char* name,
+void traceAsyncBeginForTrack(uint64_t category, const char* name,
                                const char* trackName, int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncBeginForTrack(*perfettoTeCategory, name, trackName, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_for_track_begin(category, trackName, name, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncBeginForTrack(*perfettoTeCategory, name, trackName, cookie);
   }
 }
 
-Result traceAsyncEndForTrack(uint64_t category, const char* trackName,
+void traceAsyncEndForTrack(uint64_t category, const char* trackName,
                              int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncEndForTrack(*perfettoTeCategory, trackName, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_for_track_end(category, trackName, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncEndForTrack(*perfettoTeCategory, trackName, cookie);
   }
 }
 
-Result traceInstant(uint64_t category, const char* name) {
+void traceInstant(uint64_t category, const char* name) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceInstant(*perfettoTeCategory, name);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_instant(category, name);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceInstant(*perfettoTeCategory, name);
   }
 }
 
-Result traceInstantForTrack(uint64_t category, const char* trackName,
+void traceInstantForTrack(uint64_t category, const char* trackName,
                             const char* name) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceInstantForTrack(*perfettoTeCategory, trackName, name);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_instant_for_track(category, trackName, name);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceInstantForTrack(*perfettoTeCategory, trackName, name);
   }
 }
 
-Result traceCounter(uint64_t category, const char* name, int64_t value) {
+void traceCounter(uint64_t category, const char* name, int64_t value) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceCounter(*perfettoTeCategory, name, value);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_int64(category, name, value);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceCounter(*perfettoTeCategory, name, value);
   }
 }
 
 bool isTagEnabled(uint64_t category) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return true;
-  } else {
-    return (atrace_get_enabled_tags() & category) != 0;
-  }
+  return internal::isPerfettoCategoryEnabled(perfettoTeCategory)
+      || atrace_is_tag_enabled(category);
 }
-
 }  // namespace tracing_perfetto
diff --git a/libs/tracing_perfetto/tracing_perfetto_internal.cpp b/libs/tracing_perfetto/tracing_perfetto_internal.cpp
index 758ace6..9a0042a 100644
--- a/libs/tracing_perfetto/tracing_perfetto_internal.cpp
+++ b/libs/tracing_perfetto/tracing_perfetto_internal.cpp
@@ -44,13 +44,13 @@
   C(rro, "rro", "RRO category")                                  \
   C(thermal, "thermal", "Thermal category")
 
-#include "tracing_perfetto_internal.h"
-
-#include <inttypes.h>
-
+#include <atomic>
 #include <mutex>
 
 #include <android_os.h>
+#include <android-base/properties.h>
+#include <cutils/trace.h>
+#include <inttypes.h>
 
 #include "perfetto/public/compiler.h"
 #include "perfetto/public/producer.h"
@@ -58,19 +58,42 @@
 #include "perfetto/public/te_macros.h"
 #include "perfetto/public/track_event.h"
 #include "trace_categories.h"
-#include "trace_result.h"
+#include "tracing_perfetto_internal.h"
+
+#ifdef __BIONIC__
+#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
+#include <sys/_system_properties.h>
+#endif
 
 namespace tracing_perfetto {
 
 namespace internal {
 
 namespace {
-
 PERFETTO_TE_CATEGORIES_DECLARE(FRAMEWORK_CATEGORIES);
 
 PERFETTO_TE_CATEGORIES_DEFINE(FRAMEWORK_CATEGORIES);
 
-std::atomic_bool is_perfetto_registered = false;
+static constexpr char kPreferFlagProperty[] = "debug.atrace.prefer_sdk";
+static std::atomic<const prop_info*> prefer_property_info = nullptr;
+static std::atomic_uint32_t last_prefer_seq_num = 0;
+static std::atomic_uint64_t prefer_flags = 0;
+
+static const prop_info* system_property_find(const char* name [[maybe_unused]]) {
+  #ifdef __BIONIC__
+  return __system_property_find(name);
+  #endif
+
+  return nullptr;
+}
+
+static uint32_t system_property_serial(const prop_info* pi [[maybe_unused]]) {
+  #ifdef __BIONIC__
+  return __system_property_serial(pi);
+  #endif
+
+  return last_prefer_seq_num;
+}
 
 struct PerfettoTeCategory* toCategory(uint64_t inCategory) {
   switch (inCategory) {
@@ -137,8 +160,60 @@
 
 }  // namespace
 
-bool isPerfettoRegistered() {
-  return is_perfetto_registered;
+bool isPerfettoCategoryEnabled(PerfettoTeCategory* category) {
+  return category != nullptr;
+}
+
+/**
+ * Updates the cached |prefer_flags|.
+ *
+ * We cache the prefer_flags because reading it on every trace event is expensive.
+ * The cache is invalidated when a sys_prop sequence number changes.
+ */
+void updatePreferFlags() {
+  if (!prefer_property_info.load(std::memory_order_acquire)) {
+    auto* new_prefer_property_info = system_property_find(kPreferFlagProperty);
+    prefer_flags.store(android::base::GetIntProperty(kPreferFlagProperty, 0),
+                       std::memory_order_relaxed);
+
+    if (!new_prefer_property_info) {
+      // This should never happen. If it does, we fail gracefully and end up reading the property
+      // traced event.
+      return;
+    }
+
+    last_prefer_seq_num = system_property_serial(new_prefer_property_info);
+    prefer_property_info.store(new_prefer_property_info, std::memory_order_release);
+  }
+
+  uint32_t prefer_seq_num =  system_property_serial(prefer_property_info);
+  if (prefer_seq_num != last_prefer_seq_num.load(std::memory_order_acquire)) {
+    prefer_flags.store(android::base::GetIntProperty(kPreferFlagProperty, 0),
+                       std::memory_order_relaxed);
+    last_prefer_seq_num.store(prefer_seq_num, std::memory_order_release);
+  }
+}
+
+bool shouldPreferAtrace(PerfettoTeCategory *perfettoCategory, uint64_t atraceCategory) {
+  // There are 3 cases:
+  // 1. Atrace is not enabled.
+  if (!atrace_is_tag_enabled(atraceCategory)) {
+    return false;
+  }
+
+  // 2. Atrace is enabled but perfetto is not enabled.
+  if (!isPerfettoCategoryEnabled(perfettoCategory)) {
+    return true;
+  }
+
+  // Update prefer_flags before checking it below
+  updatePreferFlags();
+
+  // 3. Atrace and perfetto are enabled.
+  // Even though this category is enabled for track events, the config mandates that we downgrade
+  // it to atrace if the same atrace category is currently enabled. This prevents missing the
+  // event from a concurrent session that needs the same category in atrace.
+  return (atraceCategory & prefer_flags.load(std::memory_order_relaxed)) == 0;
 }
 
 struct PerfettoTeCategory* toPerfettoCategory(uint64_t category) {
@@ -148,7 +223,7 @@
   }
 
   bool enabled = PERFETTO_UNLIKELY(PERFETTO_ATOMIC_LOAD_EXPLICIT(
-      (*perfettoCategory).enabled, PERFETTO_MEMORY_ORDER_RELAXED));
+       (*perfettoCategory).enabled, PERFETTO_MEMORY_ORDER_RELAXED));
   return enabled ? perfettoCategory : nullptr;
 }
 
@@ -164,70 +239,57 @@
     PerfettoProducerInit(args);
     PerfettoTeInit();
     PERFETTO_TE_REGISTER_CATEGORIES(FRAMEWORK_CATEGORIES);
-    is_perfetto_registered = true;
   });
 }
 
-Result perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name) {
+void perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name) {
   PERFETTO_TE(category, PERFETTO_TE_SLICE_BEGIN(name));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceEnd(const struct PerfettoTeCategory& category) {
+void perfettoTraceEnd(const struct PerfettoTeCategory& category) {
   PERFETTO_TE(category, PERFETTO_TE_SLICE_END());
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
                                        const char* trackName, uint64_t cookie) {
   PERFETTO_TE(
       category, PERFETTO_TE_SLICE_BEGIN(name),
       PERFETTO_TE_NAMED_TRACK(trackName, cookie, PerfettoTeProcessTrackUuid()));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
                                      const char* trackName, uint64_t cookie) {
   PERFETTO_TE(
       category, PERFETTO_TE_SLICE_END(),
       PERFETTO_TE_NAMED_TRACK(trackName, cookie, PerfettoTeProcessTrackUuid()));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
                                uint64_t cookie) {
-  return perfettoTraceAsyncBeginForTrack(category, name, name, cookie);
+  perfettoTraceAsyncBeginForTrack(category, name, name, cookie);
 }
 
-Result perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
                              uint64_t cookie) {
-  return perfettoTraceAsyncEndForTrack(category, name, cookie);
+  perfettoTraceAsyncEndForTrack(category, name, cookie);
 }
 
-Result perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name) {
+void perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name) {
   PERFETTO_TE(category, PERFETTO_TE_INSTANT(name));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
                                     const char* trackName, const char* name) {
   PERFETTO_TE(
       category, PERFETTO_TE_INSTANT(name),
       PERFETTO_TE_NAMED_TRACK(trackName, 1, PerfettoTeProcessTrackUuid()));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceCounter(const struct PerfettoTeCategory& category,
+void perfettoTraceCounter(const struct PerfettoTeCategory& category,
                             [[maybe_unused]] const char* name, int64_t value) {
   PERFETTO_TE(category, PERFETTO_TE_COUNTER(),
               PERFETTO_TE_INT_COUNTER(value));
-  return Result::SUCCESS;
 }
-
-uint64_t getDefaultCategories() {
-  return TRACE_CATEGORIES;
-}
-
 }  // namespace internal
 
 }  // namespace tracing_perfetto
diff --git a/libs/tracing_perfetto/tracing_perfetto_internal.h b/libs/tracing_perfetto/tracing_perfetto_internal.h
index 79e4b8f..3e1ac2a 100644
--- a/libs/tracing_perfetto/tracing_perfetto_internal.h
+++ b/libs/tracing_perfetto/tracing_perfetto_internal.h
@@ -19,7 +19,6 @@
 
 #include <stdint.h>
 
-#include "include/trace_result.h"
 #include "perfetto/public/te_category_macros.h"
 
 namespace tracing_perfetto {
@@ -32,31 +31,33 @@
 
 void registerWithPerfetto(bool test = false);
 
-Result perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name);
+void perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name);
 
-Result perfettoTraceEnd(const struct PerfettoTeCategory& category);
+void perfettoTraceEnd(const struct PerfettoTeCategory& category);
 
-Result perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
                                uint64_t cookie);
 
-Result perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
                              uint64_t cookie);
 
-Result perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
                                        const char* trackName, uint64_t cookie);
 
-Result perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
                                      const char* trackName, uint64_t cookie);
 
-Result perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name);
+void perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name);
 
-Result perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
                                     const char* trackName, const char* name);
 
-Result perfettoTraceCounter(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceCounter(const struct PerfettoTeCategory& category, const char* name,
                             int64_t value);
 
-uint64_t getDefaultCategories();
+bool isPerfettoCategoryEnabled(PerfettoTeCategory *perfettoTeCategory);
+
+bool shouldPreferAtrace(PerfettoTeCategory *perfettoTeCategory, uint64_t category);
 
 }  // namespace internal
 
diff --git a/services/inputflinger/PointerChoreographer.cpp b/services/inputflinger/PointerChoreographer.cpp
index 00dd6ba..31fbb51 100644
--- a/services/inputflinger/PointerChoreographer.cpp
+++ b/services/inputflinger/PointerChoreographer.cpp
@@ -202,6 +202,7 @@
     }
     auto it = mMousePointersByDisplay.find(targetDisplay);
     if (it != mMousePointersByDisplay.end()) {
+        mPolicy.notifyMouseCursorFadedOnTyping();
         it->second->fade(PointerControllerInterface::Transition::GRADUAL);
     }
 }
diff --git a/services/inputflinger/dispatcher/InputEventTimeline.cpp b/services/inputflinger/dispatcher/InputEventTimeline.cpp
index a7c6d16..a365003 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.cpp
+++ b/services/inputflinger/dispatcher/InputEventTimeline.cpp
@@ -68,7 +68,7 @@
 
 InputEventTimeline::InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime,
                                        uint16_t vendorId, uint16_t productId,
-                                       std::set<InputDeviceUsageSource> sources)
+                                       const std::set<InputDeviceUsageSource>& sources)
       : isDown(isDown),
         eventTime(eventTime),
         readTime(readTime),
diff --git a/services/inputflinger/dispatcher/InputEventTimeline.h b/services/inputflinger/dispatcher/InputEventTimeline.h
index e9deb2d..1756944 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.h
+++ b/services/inputflinger/dispatcher/InputEventTimeline.h
@@ -76,7 +76,7 @@
 
 struct InputEventTimeline {
     InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime, uint16_t vendorId,
-                       uint16_t productId, std::set<InputDeviceUsageSource> sources);
+                       uint16_t productId, const std::set<InputDeviceUsageSource>& sources);
     const bool isDown; // True if this is an ACTION_DOWN event
     const nsecs_t eventTime;
     const nsecs_t readTime;
diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
index 080281b..35519d1 100644
--- a/services/inputflinger/include/InputReaderBase.h
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -397,6 +397,9 @@
      * Returns ReservedInputDeviceId::INVALID_INPUT_DEVICE_ID if no device has been used since boot.
      */
     virtual DeviceId getLastUsedInputDeviceId() = 0;
+
+    /* Notifies that mouse cursor faded due to typing. */
+    virtual void notifyMouseCursorFadedOnTyping() = 0;
 };
 
 // --- TouchAffineTransformation ---
diff --git a/services/inputflinger/include/PointerChoreographerPolicyInterface.h b/services/inputflinger/include/PointerChoreographerPolicyInterface.h
index 7a85c12..e1f8fda 100644
--- a/services/inputflinger/include/PointerChoreographerPolicyInterface.h
+++ b/services/inputflinger/include/PointerChoreographerPolicyInterface.h
@@ -58,6 +58,9 @@
 
     /* Returns true if any InputConnection is currently active. */
     virtual bool isInputMethodConnectionActive() = 0;
+
+    /* Notifies that mouse cursor faded due to typing. */
+    virtual void notifyMouseCursorFadedOnTyping() = 0;
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/Android.bp b/services/inputflinger/reader/Android.bp
index b2f15b4..a052a4e 100644
--- a/services/inputflinger/reader/Android.bp
+++ b/services/inputflinger/reader/Android.bp
@@ -78,7 +78,6 @@
     name: "libinputreader_defaults",
     srcs: [":libinputreader_sources"],
     shared_libs: [
-        "android.companion.virtualdevice.flags-aconfig-cc-host",
         "libbase",
         "libcap",
         "libcrypto",
@@ -116,6 +115,7 @@
         "libinputreader_defaults",
     ],
     shared_libs: [
+        "android.companion.virtualdevice.flags-aconfig-cc-host",
         "libinputflinger_base",
     ],
     export_header_lib_headers: [
@@ -141,6 +141,7 @@
     shared_libs: [
         // This should consist only of dependencies from inputflinger. Other dependencies should be
         // in cc_defaults so that they are included in the tests.
+        "android.companion.virtualdevice.flags-aconfig-cc-host",
         "libinputflinger_base",
         "libjsoncpp",
     ],
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index b7ace8b..9e9e816 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -916,6 +916,12 @@
     return mLastUsedDeviceId;
 }
 
+void InputReader::notifyMouseCursorFadedOnTyping() {
+    std::scoped_lock _l(mLock);
+    // disable touchpad taps when cursor has faded due to typing
+    mPreventingTouchpadTaps = true;
+}
+
 void InputReader::dump(std::string& dump) {
     std::scoped_lock _l(mLock);
 
diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index 6f8c289..03ca840 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h
@@ -118,6 +118,8 @@
 
     DeviceId getLastUsedInputDeviceId() override;
 
+    void notifyMouseCursorFadedOnTyping() override;
+
 protected:
     // These members are protected so they can be instrumented by test cases.
     virtual std::shared_ptr<InputDevice> createDeviceLocked(nsecs_t when, int32_t deviceId,
@@ -199,7 +201,7 @@
     std::unordered_map<std::shared_ptr<InputDevice>, std::vector<int32_t> /*eventHubId*/>
             mDeviceToEventHubIdsMap GUARDED_BY(mLock);
 
-    // true if tap-to-click on touchpad currently disabled
+    // true if tap-to-click on touchpad is currently disabled
     bool mPreventingTouchpadTaps GUARDED_BY(mLock){false};
 
     // records timestamp of the last key press on the physical keyboard
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index 25f4893..4a21e48 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -493,12 +493,6 @@
 void KeyboardInputMapper::onKeyDownProcessed(nsecs_t downTime) {
     InputReaderContext& context = *getContext();
     context.setLastKeyDownTimestamp(downTime);
-    // Ignore meta keys or multiple simultaneous down keys as they are likely to be keyboard
-    // shortcuts
-    bool shouldHideCursor = mKeyDowns.size() == 1 && !isMetaKey(mKeyDowns[0].keyCode);
-    if (shouldHideCursor && context.getPolicy()->isInputMethodConnectionActive()) {
-        context.setPreventingTouchpadTaps(true);
-    }
 }
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
index 20fd359..b72cc6e 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
@@ -27,11 +27,14 @@
 
 namespace android {
 
+constexpr float kDefaultScaleFactor = 1.0f;
+
 RotaryEncoderInputMapper::RotaryEncoderInputMapper(InputDeviceContext& deviceContext,
                                                    const InputReaderConfiguration& readerConfig)
-      : InputMapper(deviceContext, readerConfig), mOrientation(ui::ROTATION_0) {
-    mSource = AINPUT_SOURCE_ROTARY_ENCODER;
-}
+      : InputMapper(deviceContext, readerConfig),
+        mSource(AINPUT_SOURCE_ROTARY_ENCODER),
+        mScalingFactor(kDefaultScaleFactor),
+        mOrientation(ui::ROTATION_0) {}
 
 RotaryEncoderInputMapper::~RotaryEncoderInputMapper() {}
 
@@ -51,9 +54,10 @@
         std::optional<float> scalingFactor = config.getFloat("device.scalingFactor");
         if (!scalingFactor.has_value()) {
             ALOGW("Rotary Encoder device configuration file didn't specify scaling factor,"
-                  "default to 1.0!\n");
+                  "default to %f!\n",
+                  kDefaultScaleFactor);
         }
-        mScalingFactor = scalingFactor.value_or(1.0f);
+        mScalingFactor = scalingFactor.value_or(kDefaultScaleFactor);
         info.addMotionRange(AMOTION_EVENT_AXIS_SCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f,
                             res.value_or(0.0f) * mScalingFactor);
     }
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index beba3b8..984e217 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -977,8 +977,9 @@
         viewportChanged = mViewport != newViewport;
     }
 
+    const bool deviceModeChanged = mDeviceMode != oldDeviceMode;
     bool skipViewportUpdate = false;
-    if (viewportChanged) {
+    if (viewportChanged || deviceModeChanged) {
         const bool viewportOrientationChanged = mViewport.orientation != newViewport.orientation;
         const bool viewportDisplayIdChanged = mViewport.displayId != newViewport.displayId;
         mViewport = newViewport;
@@ -1020,7 +1021,6 @@
     }
 
     // If moving between pointer modes, need to reset some state.
-    bool deviceModeChanged = mDeviceMode != oldDeviceMode;
     if (deviceModeChanged) {
         mOrientedRanges.clear();
     }
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index beab6e7..87b72af 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -339,8 +339,8 @@
         int32_t buttonState{};
 
         // Scroll state.
-        int32_t rawVScroll{};
-        int32_t rawHScroll{};
+        float rawVScroll{};
+        float rawHScroll{};
 
         inline void clear() { *this = RawState(); }
     };
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
index daab636..5c5fd3f 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
@@ -258,11 +258,9 @@
     // 2) TouchpadInputMapper is stored as a unique_ptr and not moved.
     mGestureInterpreter->SetPropProvider(const_cast<GesturesPropProvider*>(&gesturePropProvider),
                                          &mPropertyProvider);
-    if (input_flags::enable_gestures_library_timer_provider()) {
-        mGestureInterpreter->SetTimerProvider(const_cast<GesturesTimerProvider*>(
-                                                      &kGestureTimerProvider),
-                                              &mTimerProvider);
-    }
+    mGestureInterpreter->SetTimerProvider(const_cast<GesturesTimerProvider*>(
+                                                  &kGestureTimerProvider),
+                                          &mTimerProvider);
     mGestureInterpreter->SetCallback(gestureInterpreterCallback, this);
 }
 
@@ -300,12 +298,8 @@
     dump += addLinePrefix(mGestureConverter.dump(), INDENT4);
     dump += INDENT3 "Gesture properties:\n";
     dump += addLinePrefix(mPropertyProvider.dump(), INDENT4);
-    if (input_flags::enable_gestures_library_timer_provider()) {
-        dump += INDENT3 "Timer provider:\n";
-        dump += addLinePrefix(mTimerProvider.dump(), INDENT4);
-    } else {
-        dump += INDENT3 "Timer provider: disabled by flag\n";
-    }
+    dump += INDENT3 "Timer provider:\n";
+    dump += addLinePrefix(mTimerProvider.dump(), INDENT4);
     dump += INDENT3 "Captured event converter:\n";
     dump += addLinePrefix(mCapturedEventConverter.dump(), INDENT4);
     dump += StringPrintf(INDENT3 "DisplayId: %s\n",
@@ -468,9 +462,6 @@
 }
 
 std::list<NotifyArgs> TouchpadInputMapper::timeoutExpired(nsecs_t when) {
-    if (!input_flags::enable_gestures_library_timer_provider()) {
-        return {};
-    }
     mTimerProvider.triggerCallbacks(when);
     return processGestures(when, when);
 }
diff --git a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp
index f85cab2..5373440 100644
--- a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp
+++ b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp
@@ -16,18 +16,29 @@
 
 #include "CursorScrollAccumulator.h"
 
+#include <android_companion_virtualdevice_flags.h>
 #include "EventHub.h"
 #include "InputDevice.h"
 
 namespace android {
 
-CursorScrollAccumulator::CursorScrollAccumulator() : mHaveRelWheel(false), mHaveRelHWheel(false) {
+namespace vd_flags = android::companion::virtualdevice::flags;
+
+CursorScrollAccumulator::CursorScrollAccumulator()
+      : mHaveRelWheel(false),
+        mHaveRelHWheel(false),
+        mHaveRelWheelHighRes(false),
+        mHaveRelHWheelHighRes(false) {
     clearRelativeAxes();
 }
 
 void CursorScrollAccumulator::configure(InputDeviceContext& deviceContext) {
     mHaveRelWheel = deviceContext.hasRelativeAxis(REL_WHEEL);
     mHaveRelHWheel = deviceContext.hasRelativeAxis(REL_HWHEEL);
+    if (vd_flags::high_resolution_scroll()) {
+        mHaveRelWheelHighRes = deviceContext.hasRelativeAxis(REL_WHEEL_HI_RES);
+        mHaveRelHWheelHighRes = deviceContext.hasRelativeAxis(REL_HWHEEL_HI_RES);
+    }
 }
 
 void CursorScrollAccumulator::reset(InputDeviceContext& deviceContext) {
@@ -42,11 +53,31 @@
 void CursorScrollAccumulator::process(const RawEvent& rawEvent) {
     if (rawEvent.type == EV_REL) {
         switch (rawEvent.code) {
+            case REL_WHEEL_HI_RES:
+                if (mHaveRelWheelHighRes) {
+                    mRelWheel =
+                            rawEvent.value / static_cast<float>(kEvdevHighResScrollUnitsPerDetent);
+                }
+                break;
+            case REL_HWHEEL_HI_RES:
+                if (mHaveRelHWheelHighRes) {
+                    mRelHWheel =
+                            rawEvent.value / static_cast<float>(kEvdevHighResScrollUnitsPerDetent);
+                }
+                break;
             case REL_WHEEL:
-                mRelWheel = rawEvent.value;
+                // We should ignore regular scroll events, if we have already have high-res scroll
+                // enabled.
+                if (!mHaveRelWheelHighRes) {
+                    mRelWheel = rawEvent.value;
+                }
                 break;
             case REL_HWHEEL:
-                mRelHWheel = rawEvent.value;
+                // We should ignore regular scroll events, if we have already have high-res scroll
+                // enabled.
+                if (!mHaveRelHWheelHighRes) {
+                    mRelHWheel = rawEvent.value;
+                }
                 break;
         }
     }
diff --git a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h
index e563620..d3373cc 100644
--- a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h
+++ b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h
@@ -16,15 +16,12 @@
 
 #pragma once
 
-#include <stdint.h>
-
 namespace android {
 
 class InputDeviceContext;
 struct RawEvent;
 
 /* Keeps track of cursor scrolling motions. */
-
 class CursorScrollAccumulator {
 public:
     CursorScrollAccumulator();
@@ -37,19 +34,17 @@
     inline bool haveRelativeVWheel() const { return mHaveRelWheel; }
     inline bool haveRelativeHWheel() const { return mHaveRelHWheel; }
 
-    inline int32_t getRelativeX() const { return mRelX; }
-    inline int32_t getRelativeY() const { return mRelY; }
-    inline int32_t getRelativeVWheel() const { return mRelWheel; }
-    inline int32_t getRelativeHWheel() const { return mRelHWheel; }
+    inline float getRelativeVWheel() const { return mRelWheel; }
+    inline float getRelativeHWheel() const { return mRelHWheel; }
 
 private:
     bool mHaveRelWheel;
     bool mHaveRelHWheel;
+    bool mHaveRelWheelHighRes;
+    bool mHaveRelHWheelHighRes;
 
-    int32_t mRelX;
-    int32_t mRelY;
-    int32_t mRelWheel;
-    int32_t mRelHWheel;
+    float mRelWheel;
+    float mRelHWheel;
 
     void clearRelativeAxes();
 };
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index 189f117..65e0429 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -109,6 +109,7 @@
         },
     },
     static_libs: [
+        "android.companion.virtualdevice.flags-aconfig-cc-test",
         "libflagtest",
         "libgmock",
     ],
diff --git a/services/inputflinger/tests/CursorInputMapper_test.cpp b/services/inputflinger/tests/CursorInputMapper_test.cpp
index 83074ff..727237f 100644
--- a/services/inputflinger/tests/CursorInputMapper_test.cpp
+++ b/services/inputflinger/tests/CursorInputMapper_test.cpp
@@ -22,6 +22,7 @@
 #include <variant>
 
 #include <android-base/logging.h>
+#include <android_companion_virtualdevice_flags.h>
 #include <com_android_input_flags.h>
 #include <gtest/gtest.h>
 #include <input/DisplayViewport.h>
@@ -127,6 +128,7 @@
 } // namespace
 
 namespace input_flags = com::android::input::flags;
+namespace vd_flags = android::companion::virtualdevice::flags;
 
 /**
  * Unit tests for CursorInputMapper.
@@ -151,6 +153,10 @@
                 .WillRepeatedly(Return(false));
         EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL))
                 .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
 
         mFakePolicy->setDefaultPointerDisplayId(DISPLAY_ID);
         mFakePolicy->addDisplayViewport(createPrimaryViewport(ui::Rotation::Rotation0));
@@ -194,6 +200,7 @@
 protected:
     void SetUp() override {
         input_flags::enable_new_mouse_pointer_ballistics(false);
+        vd_flags::high_resolution_scroll(false);
         CursorInputMapperUnitTestBase::SetUp();
     }
 };
@@ -840,6 +847,72 @@
                               WithOrientation(0.0f), WithDistance(0.0f)))));
 }
 
+TEST_F(CursorInputMapperUnitTest, ProcessRegularScroll) {
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(1.0f, 1.0f)))));
+}
+
+TEST_F(CursorInputMapperUnitTest, ProcessHighResScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
+TEST_F(CursorInputMapperUnitTest, HighResScrollIgnoresRegularScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
 /**
  * When Pointer Capture is enabled, we expect to report unprocessed relative movements, so any
  * pointer acceleration or speed processing should not be applied.
@@ -1030,6 +1103,72 @@
                               WithRelativeMotion(10, 20)))));
 }
 
+TEST_F(CursorInputMapperUnitTestWithNewBallistics, ProcessRegularScroll) {
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(1.0f, 1.0f)))));
+}
+
+TEST_F(CursorInputMapperUnitTestWithNewBallistics, ProcessHighResScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
+TEST_F(CursorInputMapperUnitTestWithNewBallistics, HighResScrollIgnoresRegularScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
 namespace {
 
 // Minimum timestamp separation between subsequent input events from a Bluetooth device.
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 2d50c37..1ba79a9 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -56,6 +56,7 @@
 
 using namespace ftl::flag_operators;
 using testing::AllOf;
+using testing::VariantWith;
 using std::chrono_literals::operator""ms;
 using std::chrono_literals::operator""s;
 
@@ -4492,15 +4493,15 @@
     void prepareButtons();
     void prepareAxes(int axes);
 
-    void processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
-    void processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
-    void processUp(SingleTouchInputMapper& mappery);
-    void processPressure(SingleTouchInputMapper& mapper, int32_t pressure);
-    void processToolMajor(SingleTouchInputMapper& mapper, int32_t toolMajor);
-    void processDistance(SingleTouchInputMapper& mapper, int32_t distance);
-    void processTilt(SingleTouchInputMapper& mapper, int32_t tiltX, int32_t tiltY);
-    void processKey(SingleTouchInputMapper& mapper, int32_t code, int32_t value);
-    void processSync(SingleTouchInputMapper& mapper);
+    std::list<NotifyArgs> processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
+    std::list<NotifyArgs> processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
+    std::list<NotifyArgs> processUp(SingleTouchInputMapper& mappery);
+    std::list<NotifyArgs> processPressure(SingleTouchInputMapper& mapper, int32_t pressure);
+    std::list<NotifyArgs> processToolMajor(SingleTouchInputMapper& mapper, int32_t toolMajor);
+    std::list<NotifyArgs> processDistance(SingleTouchInputMapper& mapper, int32_t distance);
+    std::list<NotifyArgs> processTilt(SingleTouchInputMapper& mapper, int32_t tiltX, int32_t tiltY);
+    std::list<NotifyArgs> processKey(SingleTouchInputMapper& mapper, int32_t code, int32_t value);
+    std::list<NotifyArgs> processSync(SingleTouchInputMapper& mapper);
 };
 
 void SingleTouchInputMapperTest::prepareButtons() {
@@ -4530,47 +4531,57 @@
     }
 }
 
-void SingleTouchInputMapperTest::processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processDown(SingleTouchInputMapper& mapper,
+                                                              int32_t x, int32_t y) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 1);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processMove(SingleTouchInputMapper& mapper,
+                                                              int32_t x, int32_t y) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processUp(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 0);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processUp(SingleTouchInputMapper& mapper) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 0);
 }
 
-void SingleTouchInputMapperTest::processPressure(SingleTouchInputMapper& mapper, int32_t pressure) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_PRESSURE, pressure);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processPressure(SingleTouchInputMapper& mapper,
+                                                                  int32_t pressure) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_PRESSURE, pressure);
 }
 
-void SingleTouchInputMapperTest::processToolMajor(SingleTouchInputMapper& mapper,
-                                                  int32_t toolMajor) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processToolMajor(SingleTouchInputMapper& mapper,
+                                                                   int32_t toolMajor) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
 }
 
-void SingleTouchInputMapperTest::processDistance(SingleTouchInputMapper& mapper, int32_t distance) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_DISTANCE, distance);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processDistance(SingleTouchInputMapper& mapper,
+                                                                  int32_t distance) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_DISTANCE, distance);
 }
 
-void SingleTouchInputMapperTest::processTilt(SingleTouchInputMapper& mapper, int32_t tiltX,
-                                             int32_t tiltY) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_X, tiltX);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_Y, tiltY);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processTilt(SingleTouchInputMapper& mapper,
+                                                              int32_t tiltX, int32_t tiltY) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_X, tiltX);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_Y, tiltY);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processKey(SingleTouchInputMapper& mapper, int32_t code,
-                                            int32_t value) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processKey(SingleTouchInputMapper& mapper,
+                                                             int32_t code, int32_t value) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
 }
 
-void SingleTouchInputMapperTest::processSync(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processSync(SingleTouchInputMapper& mapper) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 }
 
 TEST_F(SingleTouchInputMapperTest, GetSources_WhenDeviceTypeIsNotSpecifiedAndNotACursor_ReturnsPointer) {
@@ -4661,6 +4672,42 @@
     ASSERT_FALSE(flags[1]);
 }
 
+TEST_F(SingleTouchInputMapperTest, DeviceTypeChange_RecalculatesRawToDisplayTransform) {
+    prepareDisplay(ui::ROTATION_0);
+    prepareAxes(POSITION);
+    addConfigurationProperty("touch.deviceType", "touchScreen");
+    SingleTouchInputMapper& mapper = constructAndAddMapper<SingleTouchInputMapper>();
+
+    const int32_t x = 900;
+    const int32_t y = 75;
+    std::list<NotifyArgs> args;
+    args += processDown(mapper, x, y);
+    args += processSync(mapper);
+
+    // Assert that motion event is received in display coordinate space for deviceType touchScreen.
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                              WithCoords(toDisplayX(x), toDisplayY(y))))));
+
+    // Add device type association after the device was created.
+    mFakePolicy->addDeviceTypeAssociation(DEVICE_LOCATION, "touchNavigation");
+    // Send update to the mapper.
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               InputReaderConfiguration::Change::DEVICE_TYPE /*changes*/);
+
+    args.clear();
+    args += processDown(mapper, x, y);
+    args += processSync(mapper);
+
+    // Assert that motion event is received in raw coordinate space for deviceType touchNavigation.
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                              WithCoords(x - RAW_X_MIN, y - RAW_Y_MIN)))));
+}
+
 TEST_F(SingleTouchInputMapperTest, Process_WhenVirtualKeyIsPressedAndReleasedNormally_SendsKeyDownAndKeyUp) {
     addConfigurationProperty("touch.deviceType", "touchScreen");
     prepareDisplay(ui::ROTATION_0);
diff --git a/services/inputflinger/tests/InterfaceMocks.h b/services/inputflinger/tests/InterfaceMocks.h
index bacc6d4..48e0b4f 100644
--- a/services/inputflinger/tests/InterfaceMocks.h
+++ b/services/inputflinger/tests/InterfaceMocks.h
@@ -187,6 +187,7 @@
     MOCK_METHOD(void, notifyPointerDisplayIdChanged,
                 (ui::LogicalDisplayId displayId, const FloatPoint& position), (override));
     MOCK_METHOD(bool, isInputMethodConnectionActive, (), (override));
+    MOCK_METHOD(void, notifyMouseCursorFadedOnTyping, (), (override));
 };
 
 } // namespace android
diff --git a/services/inputflinger/tests/KeyboardInputMapper_test.cpp b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
index ab47cc6..d3e8dee 100644
--- a/services/inputflinger/tests/KeyboardInputMapper_test.cpp
+++ b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
@@ -69,48 +69,8 @@
         mMapper = createInputMapper<KeyboardInputMapper>(*mDeviceContext, mReaderConfiguration,
                                                          AINPUT_SOURCE_KEYBOARD);
     }
-
-    void testTouchpadTapStateForKeys(const std::vector<int32_t>& keyCodes,
-                                     const bool expectPrevent) {
-        if (expectPrevent) {
-            EXPECT_CALL(mMockInputReaderContext, setPreventingTouchpadTaps(true))
-                    .Times(keyCodes.size());
-        }
-        for (int32_t keyCode : keyCodes) {
-            process(EV_KEY, keyCode, 1);
-            process(EV_SYN, SYN_REPORT, 0);
-            process(EV_KEY, keyCode, 0);
-            process(EV_SYN, SYN_REPORT, 0);
-        }
-    }
 };
 
-/**
- * Touchpad tap should not be disabled if there is no active Input Method Connection
- */
-TEST_F(KeyboardInputMapperUnitTest, KeystrokesWithoutIMeConnectionDontDisableTouchpadTap) {
-    testTouchpadTapStateForKeys({KEY_0, KEY_A, KEY_LEFTCTRL}, /* expectPrevent= */ false);
-}
-
-/**
- * Touchpad tap should be disabled if there is a active Input Method Connection
- */
-TEST_F(KeyboardInputMapperUnitTest, AlphanumericKeystrokesWithIMeConnectionDisableTouchpadTap) {
-    mFakePolicy->setIsInputMethodConnectionActive(true);
-    testTouchpadTapStateForKeys({KEY_0, KEY_A}, /* expectPrevent= */ true);
-}
-
-/**
- * Touchpad tap should not be disabled by meta keys even if Input Method Connection is active
- */
-TEST_F(KeyboardInputMapperUnitTest, MetaKeystrokesWithIMeConnectionDontDisableTouchpadTap) {
-    mFakePolicy->setIsInputMethodConnectionActive(true);
-    std::vector<int32_t> metaKeys{KEY_LEFTALT,   KEY_RIGHTALT, KEY_LEFTSHIFT, KEY_RIGHTSHIFT,
-                                  KEY_FN,        KEY_LEFTCTRL, KEY_RIGHTCTRL, KEY_LEFTMETA,
-                                  KEY_RIGHTMETA, KEY_CAPSLOCK, KEY_NUMLOCK,   KEY_SCROLLLOCK};
-    testTouchpadTapStateForKeys(metaKeys, /* expectPrevent= */ false);
-}
-
 TEST_F(KeyboardInputMapperUnitTest, KeyPressTimestampRecorded) {
     nsecs_t when = ARBITRARY_TIME;
     std::vector<int32_t> keyCodes{KEY_0, KEY_A, KEY_LEFTCTRL, KEY_RIGHTALT, KEY_LEFTSHIFT};
diff --git a/services/inputflinger/tests/PointerChoreographer_test.cpp b/services/inputflinger/tests/PointerChoreographer_test.cpp
index 9a5b6a7..144e723 100644
--- a/services/inputflinger/tests/PointerChoreographer_test.cpp
+++ b/services/inputflinger/tests/PointerChoreographer_test.cpp
@@ -2294,7 +2294,13 @@
     assertPointerControllerRemoved(pc);
 }
 
-class PointerVisibilityOnKeyPressTest : public PointerChoreographerTest {
+using PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixtureParam =
+        std::tuple<std::string_view /*name*/, uint32_t /*source*/>;
+
+class PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture
+      : public PointerChoreographerTest,
+        public testing::WithParamInterface<
+                PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixtureParam> {
 protected:
     const std::unordered_map<int32_t, int32_t>
             mMetaKeyStates{{AKEYCODE_ALT_LEFT, AMETA_ALT_LEFT_ON},
@@ -2358,15 +2364,28 @@
     }
 };
 
-TEST_F(PointerVisibilityOnKeyPressTest, KeystrokesWithoutImeConnectionDoesNotHidePointer) {
+INSTANTIATE_TEST_SUITE_P(
+        PointerChoreographerTest, PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+        testing::Values(std::make_tuple("Mouse", AINPUT_SOURCE_MOUSE),
+                        std::make_tuple("Touchpad", AINPUT_SOURCE_MOUSE | AINPUT_SOURCE_TOUCHPAD)),
+        [](const testing::TestParamInfo<
+                PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixtureParam>& p) {
+            return std::string{std::get<0>(p.param)};
+        });
+
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       KeystrokesWithoutImeConnectionDoesNotHidePointerOrDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
     ASSERT_TRUE(pc->isPointerShown());
 
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(0);
+
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_0);
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_A);
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_CTRL_LEFT);
@@ -2374,16 +2393,19 @@
     ASSERT_TRUE(pc->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, AlphanumericKeystrokesWithImeConnectionHidePointer) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       AlphanumericKeystrokesWithImeConnectionHidePointerAndDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
     ASSERT_TRUE(pc->isPointerShown());
 
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(2);
 
     notifyKey(DISPLAY_ID, AKEYCODE_0);
     ASSERT_FALSE(pc->isPointerShown());
@@ -2394,17 +2416,19 @@
     ASSERT_FALSE(pc->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, MetaKeystrokesDoNotHidePointer) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       MetaKeystrokesDoNotHidePointerOrDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0,
-             {generateTestDeviceInfo(SECOND_DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(SECOND_DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
     ASSERT_TRUE(pc->isPointerShown());
 
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(0);
 
     const std::vector<int32_t> metaKeyCodes{AKEYCODE_ALT_LEFT,   AKEYCODE_ALT_RIGHT,
                                             AKEYCODE_SHIFT_LEFT, AKEYCODE_SHIFT_RIGHT,
@@ -2420,14 +2444,16 @@
     ASSERT_TRUE(pc->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, KeystrokesWithoutTargetHidePointerOnlyOnFocusedDisplay) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       KeystrokesWithoutTargetHidePointerOnlyOnFocusedDisplayAndDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID, ANOTHER_DISPLAY_ID}));
     mChoreographer.setFocusedDisplay(DISPLAY_ID);
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
             {/*id=*/0,
-             {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID),
+             {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID),
               generateTestDeviceInfo(SECOND_DEVICE_ID, AINPUT_SOURCE_MOUSE, ANOTHER_DISPLAY_ID)}});
     auto pc1 = assertPointerControllerCreated(ControllerType::MOUSE);
     auto pc2 = assertPointerControllerCreated(ControllerType::MOUSE);
@@ -2435,6 +2461,7 @@
     ASSERT_TRUE(pc2->isPointerShown());
 
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(2);
 
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_0);
     ASSERT_FALSE(pc1->isPointerShown());
@@ -2446,16 +2473,19 @@
     ASSERT_TRUE(pc2->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, TestMetaKeyCombinations) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture, TestMetaKeyCombinations) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
+
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
 
-    // meta key combinations that should hide pointer
+    // meta key combinations that should hide pointer and disable touchpad taps
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(5);
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_SHIFT_LEFT);
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_SHIFT_RIGHT);
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_CAPS_LOCK);
@@ -2463,6 +2493,7 @@
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_SCROLL_LOCK);
 
     // meta key combinations that should not hide pointer
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(0);
     metaKeyCombinationDoesNotHidePointer(*pc, AKEYCODE_A, AKEYCODE_ALT_LEFT);
     metaKeyCombinationDoesNotHidePointer(*pc, AKEYCODE_A, AKEYCODE_ALT_RIGHT);
     metaKeyCombinationDoesNotHidePointer(*pc, AKEYCODE_A, AKEYCODE_CTRL_LEFT);
diff --git a/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp b/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
index 94cfc32..366b3dc 100644
--- a/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
+++ b/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
@@ -22,6 +22,7 @@
 #include <variant>
 
 #include <android-base/logging.h>
+#include <android_companion_virtualdevice_flags.h>
 #include <gtest/gtest.h>
 #include <input/DisplayViewport.h>
 #include <linux/input-event-codes.h>
@@ -109,6 +110,8 @@
 
 } // namespace
 
+namespace vd_flags = android::companion::virtualdevice::flags;
+
 /**
  * Unit tests for RotaryEncoderInputMapper.
  */
@@ -122,6 +125,10 @@
                 .WillRepeatedly(Return(true));
         EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL))
                 .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
     }
 };
 
@@ -166,4 +173,53 @@
                               WithDisplayId(ui::LogicalDisplayId::INVALID)))));
 }
 
+TEST_F(RotaryEncoderInputMapperTest, ProcessRegularScroll) {
+    createDevice();
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithMotionAction(AMOTION_EVENT_ACTION_SCROLL), WithScroll(1.0f)))));
+}
+
+TEST_F(RotaryEncoderInputMapperTest, ProcessHighResScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createDevice();
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithMotionAction(AMOTION_EVENT_ACTION_SCROLL), WithScroll(0.5f)))));
+}
+
+TEST_F(RotaryEncoderInputMapperTest, HighResScrollIgnoresRegularScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createDevice();
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithMotionAction(AMOTION_EVENT_ACTION_SCROLL), WithScroll(0.5f)))));
+}
+
 } // namespace android
\ No newline at end of file
diff --git a/services/inputflinger/tests/TestEventMatchers.h b/services/inputflinger/tests/TestEventMatchers.h
index 65fb9c6..f8e3c22 100644
--- a/services/inputflinger/tests/TestEventMatchers.h
+++ b/services/inputflinger/tests/TestEventMatchers.h
@@ -697,6 +697,21 @@
     return argDistance == distance;
 }
 
+MATCHER_P(WithScroll, scroll, "InputEvent with specified scroll value") {
+    const auto argScroll = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_SCROLL);
+    *result_listener << "expected scroll value " << scroll << ", but got " << argScroll;
+    return argScroll == scroll;
+}
+
+MATCHER_P2(WithScroll, scrollX, scrollY, "InputEvent with specified scroll values") {
+    const auto argScrollX = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_HSCROLL);
+    const auto argScrollY = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_VSCROLL);
+    *result_listener << "expected scroll values " << scrollX << " scroll x " << scrollY
+                     << " scroll y, but got " << argScrollX << " scroll x " << argScrollY
+                     << " scroll y";
+    return argScrollX == scrollX && argScrollY == scrollY;
+}
+
 MATCHER_P2(WithTouchDimensions, maj, min, "InputEvent with specified touch dimensions") {
     const auto argMajor = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR);
     const auto argMinor = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR);
diff --git a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
index 7d26a43..d552c19 100644
--- a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
@@ -169,6 +169,8 @@
 
     DeviceId getLastUsedInputDeviceId() override { return reader->getLastUsedInputDeviceId(); }
 
+    void notifyMouseCursorFadedOnTyping() override { reader->notifyMouseCursorFadedOnTyping(); }
+
 private:
     std::unique_ptr<InputReaderInterface> reader;
 };
diff --git a/services/inputflinger/tests/fuzzers/MapperHelpers.h b/services/inputflinger/tests/fuzzers/MapperHelpers.h
index 7dccd69..d986b31 100644
--- a/services/inputflinger/tests/fuzzers/MapperHelpers.h
+++ b/services/inputflinger/tests/fuzzers/MapperHelpers.h
@@ -348,8 +348,8 @@
     void notifyStylusGestureStarted(int32_t, nsecs_t) {}
     void notifyConfigurationChanged(nsecs_t) {}
 
-    void setPreventingTouchpadTaps(bool prevent) {}
-    bool isPreventingTouchpadTaps() { return mFdp->ConsumeBool(); };
+    void setPreventingTouchpadTaps(bool prevent) override {}
+    bool isPreventingTouchpadTaps() override { return mFdp->ConsumeBool(); };
 
     void setLastKeyDownTimestamp(nsecs_t when) { mLastKeyDownTimestamp = when; };
     nsecs_t getLastKeyDownTimestamp() { return mLastKeyDownTimestamp; };
diff --git a/services/surfaceflinger/CompositionEngine/src/DisplayColorProfile.cpp b/services/surfaceflinger/CompositionEngine/src/DisplayColorProfile.cpp
index f339d41..4424a04 100644
--- a/services/surfaceflinger/CompositionEngine/src/DisplayColorProfile.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/DisplayColorProfile.cpp
@@ -260,10 +260,6 @@
 
 void DisplayColorProfile::populateColorModes(
         const DisplayColorProfileCreationArgs::HwcColorModes& hwcColorModes) {
-    if (!hasWideColorGamut()) {
-        return;
-    }
-
     // collect all known SDR render intents
     std::unordered_set<RenderIntent> sdrRenderIntents(sSdrRenderIntents.begin(),
                                                       sSdrRenderIntents.end());
@@ -352,13 +348,9 @@
         *outMode = iter->second.colorMode;
         *outIntent = iter->second.renderIntent;
     } else {
-        // this is unexpected on a WCG display
-        if (hasWideColorGamut()) {
-            ALOGE("map unknown (%s)/(%s) to default color mode",
-                  dataspaceDetails(static_cast<android_dataspace_t>(dataspace)).c_str(),
-                  decodeRenderIntent(intent).c_str());
-        }
-
+        ALOGI("map unknown (%s)/(%s) to default color mode",
+              dataspaceDetails(static_cast<android_dataspace_t>(dataspace)).c_str(),
+              decodeRenderIntent(intent).c_str());
         *outDataspace = Dataspace::UNKNOWN;
         *outMode = ColorMode::NATIVE;
         *outIntent = RenderIntent::COLORIMETRIC;
diff --git a/services/surfaceflinger/CompositionEngine/tests/DisplayColorProfileTest.cpp b/services/surfaceflinger/CompositionEngine/tests/DisplayColorProfileTest.cpp
index 03a97dc..c354e4a 100644
--- a/services/surfaceflinger/CompositionEngine/tests/DisplayColorProfileTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/DisplayColorProfileTest.cpp
@@ -123,10 +123,10 @@
                 .build();
     }
 
-    static impl::DisplayColorProfile createProfileWithSRGBColorModeSupport() {
+    static impl::DisplayColorProfile createProfileWithSRGBColorModeSupport(bool wcg = true) {
         return ProfileFactory()
-                .setHasWideColorGamut(true)
                 .addHdrType(Hdr::HDR10)
+                .setHasWideColorGamut(wcg)
                 .addColorModeRenderIntent(ColorMode::SRGB, RenderIntent::COLORIMETRIC)
                 .addColorModeRenderIntent(ColorMode::SRGB, RenderIntent::ENHANCE)
                 .addColorModeRenderIntent(ColorMode::SRGB, VendorRenderIntent)
@@ -289,7 +289,7 @@
 TEST_F(DisplayColorProfileTest, hasRenderIntentReturnsExpectedValueWhenOutputHasNoSupport) {
     auto profile = ProfileFactory::createProfileWithNoColorModeSupport();
 
-    EXPECT_FALSE(profile.hasRenderIntent(RenderIntent::COLORIMETRIC));
+    EXPECT_TRUE(profile.hasRenderIntent(RenderIntent::COLORIMETRIC));
     EXPECT_FALSE(profile.hasRenderIntent(RenderIntent::ENHANCE));
     EXPECT_FALSE(profile.hasRenderIntent(RenderIntent::TONE_MAP_COLORIMETRIC));
     EXPECT_FALSE(profile.hasRenderIntent(RenderIntent::TONE_MAP_ENHANCE));
@@ -306,6 +306,16 @@
     EXPECT_FALSE(profile.hasRenderIntent(VendorRenderIntent));
 }
 
+TEST_F(DisplayColorProfileTest, hasRenderIntentReturnsExpectedValueWhenOutputHasSRGBSupport_NoWCG) {
+    auto profile = ProfileFactory::createProfileWithSRGBColorModeSupport(false);
+
+    EXPECT_TRUE(profile.hasRenderIntent(RenderIntent::COLORIMETRIC));
+    EXPECT_TRUE(profile.hasRenderIntent(RenderIntent::ENHANCE));
+    EXPECT_FALSE(profile.hasRenderIntent(RenderIntent::TONE_MAP_COLORIMETRIC));
+    EXPECT_FALSE(profile.hasRenderIntent(RenderIntent::TONE_MAP_ENHANCE));
+    EXPECT_TRUE(profile.hasRenderIntent(VendorRenderIntent));
+}
+
 TEST_F(DisplayColorProfileTest, hasRenderIntentReturnsExpectedValueWhenOutputHasSRGBSupport) {
     auto profile = ProfileFactory::createProfileWithSRGBColorModeSupport();
 
@@ -476,6 +486,40 @@
     checkGetBestColorMode(profile, expectedResults);
 }
 
+TEST_F(DisplayColorProfileTest,
+       getBestColorModeReturnsExpectedModesWhenOutputHasSRGBSupport_NoWCG) {
+    auto profile = ProfileFactory::createProfileWithSRGBColorModeSupport(false);
+
+    // Note: This table of expected values goes with the table of arguments
+    // used in checkGetBestColorMode.
+    using Result = std::tuple<Dataspace, ColorMode, RenderIntent>;
+    std::array<Result, 15> expectedResults = {
+            /* clang-format off */
+            /*  0 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::COLORIMETRIC},
+            /*  1 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::ENHANCE},
+            /*  2 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, VendorRenderIntent},
+
+            /*  3 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::COLORIMETRIC},
+            /*  4 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::ENHANCE},
+            /*  5 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, VendorRenderIntent},
+
+            /*  6 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::COLORIMETRIC},
+            /*  7 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::ENHANCE},
+            /*  8 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, VendorRenderIntent},
+
+            /*  9 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::COLORIMETRIC},
+            /* 10 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::COLORIMETRIC},
+            /* 11 */ Result{Dataspace::UNKNOWN, ColorMode::NATIVE, RenderIntent::COLORIMETRIC},
+
+            /* 12 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::COLORIMETRIC},
+            /* 13 */ Result{Dataspace::V0_SRGB, ColorMode::SRGB, RenderIntent::COLORIMETRIC},
+            /* 14 */ Result{Dataspace::UNKNOWN, ColorMode::NATIVE, RenderIntent::COLORIMETRIC},
+            /* clang-format on */
+    };
+
+    checkGetBestColorMode(profile, expectedResults);
+}
+
 TEST_F(DisplayColorProfileTest, getBestColorModeReturnsExpectedModesWhenOutputHasSRGBSupport) {
     auto profile = ProfileFactory::createProfileWithSRGBColorModeSupport();
 
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 8288b99..75b07a8 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -468,6 +468,12 @@
     return false;
 }
 
+void DisplayDevice::onVrrIdle(bool idle) {
+    if (mRefreshRateOverlay) {
+        mRefreshRateOverlay->onVrrIdle(idle);
+    }
+}
+
 void DisplayDevice::animateOverlay() {
     if (mRefreshRateOverlay) {
         mRefreshRateOverlay->animate();
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 3cc8cf5..1b8a3a8 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -196,6 +196,7 @@
     bool isRefreshRateOverlayEnabled() const { return mRefreshRateOverlay != nullptr; }
     void animateOverlay();
     bool onKernelTimerChanged(std::optional<DisplayModeId>, bool timerExpired);
+    void onVrrIdle(bool idle);
 
     // Enables an overlay to be display with the hdr/sdr ratio
     void enableHdrSdrRatioOverlay(bool enable) REQUIRES(kMainThreadContext);
diff --git a/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp b/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
index da56014..334c104 100644
--- a/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
+++ b/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
@@ -211,7 +211,7 @@
         return;
     }
     SFTRACE_CALL();
-    if (sTraceHintSessionData) ATRACE_INT("Session hint", static_cast<int>(hint));
+    if (sTraceHintSessionData) SFTRACE_INT("Session hint", static_cast<int>(hint));
     {
         std::scoped_lock lock(mHintSessionMutex);
         if (!ensurePowerHintSessionRunning()) {
@@ -298,7 +298,7 @@
     SFTRACE_CALL();
     {
         mTargetDuration = targetDuration;
-        if (sTraceHintSessionData) ATRACE_INT64("Time target", targetDuration.ns());
+        if (sTraceHintSessionData) SFTRACE_INT64("Time target", targetDuration.ns());
         if (targetDuration == mLastTargetDurationSent) return;
         std::scoped_lock lock(mHintSessionMutex);
         if (!ensurePowerHintSessionRunning()) {
diff --git a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
index bc4a41b..1076b2b 100644
--- a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
+++ b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
@@ -300,7 +300,7 @@
     bool mSessionConfigSupported = true;
     bool mFirstConfigSupportCheck = true;
 
-    // Whether we should emit ATRACE_INT data for hint sessions
+    // Whether we should emit SFTRACE_INT data for hint sessions
     static const bool sTraceHintSessionData;
 
     // Default target duration for the hint session
diff --git a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
index 5550565..2a0ee5a 100644
--- a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
+++ b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
@@ -359,7 +359,11 @@
 
 void SurfaceFrame::setAcquireFenceTime(nsecs_t acquireFenceTime) {
     std::scoped_lock lock(mMutex);
-    mActuals.endTime = std::max(acquireFenceTime, mActualQueueTime);
+    if (CC_UNLIKELY(acquireFenceTime == Fence::SIGNAL_TIME_PENDING)) {
+        mActuals.endTime = mActualQueueTime;
+    } else {
+        mActuals.endTime = std::max(acquireFenceTime, mActualQueueTime);
+    }
 }
 
 void SurfaceFrame::setDropTime(nsecs_t dropTime) {
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 86c7d16..a6d2b15 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -3060,6 +3060,8 @@
         callReleaseBufferCallback(mDrawingState.releaseBufferListener,
                                   mDrawingState.buffer->getBuffer(), mDrawingState.frameNumber,
                                   mDrawingState.acquireFence);
+        const int32_t layerId = getSequence();
+        mFlinger->mTimeStats->removeTimeRecord(layerId, mDrawingState.frameNumber);
         decrementPendingBufferCount();
         if (mDrawingState.bufferSurfaceFrameTX != nullptr &&
             mDrawingState.bufferSurfaceFrameTX->getPresentState() != PresentState::Presented) {
@@ -3238,7 +3240,7 @@
         return static_cast<nsecs_t>(0);
     }();
 
-    if (ATRACE_ENABLED() && presentTime > 0) {
+    if (SFTRACE_ENABLED() && presentTime > 0) {
         const auto presentIn = TimePoint::fromNs(presentTime) - TimePoint::now();
         SFTRACE_FORMAT_INSTANT("presentIn %s", to_string(presentIn).c_str());
     }
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index d3b56f8..52f169e 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -1265,7 +1265,7 @@
     const std::string mBlastTransactionName{"BufferTX - " + mName};
     // This integer is incremented everytime a buffer arrives at the server for this layer,
     // and decremented when a buffer is dropped or latched. When changed the integer is exported
-    // to systrace with ATRACE_INT and mBlastTransactionName. This way when debugging perf it is
+    // to systrace with SFTRACE_INT and mBlastTransactionName. This way when debugging perf it is
     // possible to see when a buffer arrived at the server, and in which frame it latched.
     //
     // You can understand the trace this way:
diff --git a/services/surfaceflinger/LayerProtoHelper.cpp b/services/surfaceflinger/LayerProtoHelper.cpp
index 496033b..30b8eee 100644
--- a/services/surfaceflinger/LayerProtoHelper.cpp
+++ b/services/surfaceflinger/LayerProtoHelper.cpp
@@ -266,6 +266,7 @@
 perfetto::protos::LayersProto LayerProtoFromSnapshotGenerator::generate(
         const frontend::LayerHierarchy& root) {
     mLayersProto.clear_layers();
+    mVisitedLayers.clear();
     std::unordered_set<uint64_t> stackIdsToSkip;
     if ((mTraceFlags & LayerTracing::TRACE_VIRTUAL_DISPLAYS) == 0) {
         for (const auto& [layerStack, displayInfo] : mDisplayInfos) {
@@ -326,6 +327,10 @@
     perfetto::protos::LayerProto* layerProto = mLayersProto.add_layers();
     const frontend::RequestedLayerState& layer = *root.getLayer();
     frontend::LayerSnapshot* snapshot = getSnapshot(path, layer);
+    if (mVisitedLayers.find(snapshot->uniqueSequence) != mVisitedLayers.end()) {
+        TransactionTraceWriter::getInstance().invoke("DuplicateLayer", /* overwrite= */ false);
+        return;
+    }
     LayerProtoHelper::writeSnapshotToProto(layerProto, layer, *snapshot, mTraceFlags);
 
     for (const auto& [child, variant] : root.mChildren) {
diff --git a/services/surfaceflinger/LayerProtoHelper.h b/services/surfaceflinger/LayerProtoHelper.h
index 20c2260..d672012 100644
--- a/services/surfaceflinger/LayerProtoHelper.h
+++ b/services/surfaceflinger/LayerProtoHelper.h
@@ -101,6 +101,8 @@
     const frontend::DisplayInfos& mDisplayInfos;
     uint32_t mTraceFlags;
     perfetto::protos::LayersProto mLayersProto;
+    std::unordered_set<uint32_t> mVisitedLayers;
+
     // winscope expects all the layers, so provide a snapshot even if it not currently drawing
     std::unordered_map<frontend::LayerHierarchy::TraversalPath, frontend::LayerSnapshot,
                        frontend::LayerHierarchy::TraversalPathHash>
diff --git a/services/surfaceflinger/RefreshRateOverlay.cpp b/services/surfaceflinger/RefreshRateOverlay.cpp
index 9527a99..35f12a0 100644
--- a/services/surfaceflinger/RefreshRateOverlay.cpp
+++ b/services/surfaceflinger/RefreshRateOverlay.cpp
@@ -28,10 +28,11 @@
 
 namespace android {
 
-auto RefreshRateOverlay::draw(int refreshRate, int renderFps, SkColor color,
+auto RefreshRateOverlay::draw(int refreshRate, int renderFps, bool idle, SkColor color,
                               ui::Transform::RotationFlags rotation, ftl::Flags<Features> features)
         -> Buffers {
     const size_t loopCount = features.test(Features::Spinner) ? 6 : 1;
+    const bool isSetByHwc = features.test(Features::SetByHwc);
 
     Buffers buffers;
     buffers.reserve(loopCount);
@@ -71,7 +72,11 @@
         canvas->setMatrix(canvasTransform);
 
         int left = 0;
-        drawNumber(refreshRate, left, color, *canvas);
+        if (idle && !isSetByHwc) {
+            drawDash(left, *canvas);
+        } else {
+            drawNumber(refreshRate, left, color, *canvas);
+        }
         left += 3 * (kDigitWidth + kDigitSpace);
         if (features.test(Features::Spinner)) {
             switch (i) {
@@ -104,7 +109,11 @@
         left += kDigitWidth + kDigitSpace;
 
         if (features.test(Features::RenderRate)) {
-            drawNumber(renderFps, left, color, *canvas);
+            if (idle) {
+                drawDash(left, *canvas);
+            } else {
+                drawNumber(renderFps, left, color, *canvas);
+            }
         }
         left += 3 * (kDigitWidth + kDigitSpace);
 
@@ -138,6 +147,14 @@
     SegmentDrawer::drawDigit(number % 10, left, color, canvas);
 }
 
+void RefreshRateOverlay::drawDash(int left, SkCanvas& canvas) {
+    left += kDigitWidth + kDigitSpace;
+    SegmentDrawer::drawSegment(SegmentDrawer::Segment::Middle, left, SK_ColorRED, canvas);
+
+    left += kDigitWidth + kDigitSpace;
+    SegmentDrawer::drawSegment(SegmentDrawer::Segment::Middle, left, SK_ColorRED, canvas);
+}
+
 std::unique_ptr<RefreshRateOverlay> RefreshRateOverlay::create(FpsRange range,
                                                                ftl::Flags<Features> features) {
     std::unique_ptr<RefreshRateOverlay> overlay =
@@ -171,7 +188,8 @@
     return mSurfaceControl != nullptr;
 }
 
-auto RefreshRateOverlay::getOrCreateBuffers(Fps refreshRate, Fps renderFps) -> const Buffers& {
+auto RefreshRateOverlay::getOrCreateBuffers(Fps refreshRate, Fps renderFps, bool idle)
+        -> const Buffers& {
     static const Buffers kNoBuffers;
     if (!mSurfaceControl) return kNoBuffers;
 
@@ -197,8 +215,8 @@
 
     createTransaction().setTransform(mSurfaceControl->get(), transform).apply();
 
-    BufferCache::const_iterator it =
-            mBufferCache.find({refreshRate.getIntValue(), renderFps.getIntValue(), transformHint});
+    BufferCache::const_iterator it = mBufferCache.find(
+            {refreshRate.getIntValue(), renderFps.getIntValue(), transformHint, idle});
     if (it == mBufferCache.end()) {
         const int maxFps = mFpsRange.max.getIntValue();
 
@@ -222,10 +240,10 @@
 
         const SkColor color = colorBase.toSkColor();
 
-        auto buffers = draw(refreshIntFps, renderIntFps, color, transformHint, mFeatures);
+        auto buffers = draw(refreshIntFps, renderIntFps, idle, color, transformHint, mFeatures);
         it = mBufferCache
-                     .try_emplace({refreshIntFps, renderIntFps, transformHint}, std::move(buffers))
-                     .first;
+                     .try_emplace({refreshIntFps, renderIntFps, transformHint, idle},
+                     std::move(buffers)).first;
     }
 
     return it->second;
@@ -257,7 +275,15 @@
 void RefreshRateOverlay::changeRefreshRate(Fps refreshRate, Fps renderFps) {
     mRefreshRate = refreshRate;
     mRenderFps = renderFps;
-    const auto buffer = getOrCreateBuffers(refreshRate, renderFps)[mFrame];
+    const auto buffer = getOrCreateBuffers(refreshRate, renderFps, mIsVrrIdle)[mFrame];
+    createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();
+}
+
+void RefreshRateOverlay::onVrrIdle(bool idle) {
+    mIsVrrIdle = idle;
+    if (!mRefreshRate || !mRenderFps) return;
+
+    const auto buffer = getOrCreateBuffers(*mRefreshRate, *mRenderFps, mIsVrrIdle)[mFrame];
     createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();
 }
 
@@ -265,7 +291,7 @@
     if (mFeatures.test(Features::RenderRate) && mRefreshRate &&
         FlagManager::getInstance().misc1()) {
         mRenderFps = renderFps;
-        const auto buffer = getOrCreateBuffers(*mRefreshRate, renderFps)[mFrame];
+        const auto buffer = getOrCreateBuffers(*mRefreshRate, renderFps, mIsVrrIdle)[mFrame];
         createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();
     }
 }
@@ -273,7 +299,7 @@
 void RefreshRateOverlay::animate() {
     if (!mFeatures.test(Features::Spinner) || !mRefreshRate) return;
 
-    const auto& buffers = getOrCreateBuffers(*mRefreshRate, *mRenderFps);
+    const auto& buffers = getOrCreateBuffers(*mRefreshRate, *mRenderFps, mIsVrrIdle);
     mFrame = (mFrame + 1) % buffers.size();
     const auto buffer = buffers[mFrame];
     createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();
diff --git a/services/surfaceflinger/RefreshRateOverlay.h b/services/surfaceflinger/RefreshRateOverlay.h
index b2896f0..d8aa048 100644
--- a/services/surfaceflinger/RefreshRateOverlay.h
+++ b/services/surfaceflinger/RefreshRateOverlay.h
@@ -57,6 +57,7 @@
     void changeRenderRate(Fps);
     void animate();
     bool isSetByHwc() const { return mFeatures.test(RefreshRateOverlay::Features::SetByHwc); }
+    void onVrrIdle(bool idle);
 
     RefreshRateOverlay(ConstructorTag, FpsRange, ftl::Flags<Features>);
 
@@ -65,11 +66,12 @@
 
     using Buffers = std::vector<sp<GraphicBuffer>>;
 
-    static Buffers draw(int refreshRate, int renderFps, SkColor, ui::Transform::RotationFlags,
-                        ftl::Flags<Features>);
+    static Buffers draw(int refreshRate, int renderFps, bool idle, SkColor,
+                        ui::Transform::RotationFlags, ftl::Flags<Features>);
     static void drawNumber(int number, int left, SkColor, SkCanvas&);
+    static void drawDash(int left, SkCanvas&);
 
-    const Buffers& getOrCreateBuffers(Fps, Fps);
+    const Buffers& getOrCreateBuffers(Fps, Fps, bool);
 
     SurfaceComposerClient::Transaction createTransaction() const;
 
@@ -77,10 +79,11 @@
         int refreshRate;
         int renderFps;
         ui::Transform::RotationFlags flags;
+        bool idle;
 
         bool operator==(Key other) const {
             return refreshRate == other.refreshRate && renderFps == other.renderFps &&
-                    flags == other.flags;
+                    flags == other.flags && idle == other.idle;
         }
     };
 
@@ -89,6 +92,7 @@
 
     std::optional<Fps> mRefreshRate;
     std::optional<Fps> mRenderFps;
+    bool mIsVrrIdle = false;
     size_t mFrame = 0;
 
     const FpsRange mFpsRange; // For color interpolation.
diff --git a/services/surfaceflinger/Scheduler/ISchedulerCallback.h b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
index 43cdb5e..f430526 100644
--- a/services/surfaceflinger/Scheduler/ISchedulerCallback.h
+++ b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
@@ -33,6 +33,7 @@
     virtual void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>,
                                              Fps renderRate) = 0;
     virtual void onCommitNotComposited(PhysicalDisplayId pacesetterDisplayId) = 0;
+    virtual void vrrDisplayIdle(bool idle) = 0;
 
 protected:
     ~ISchedulerCallback() = default;
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
index 0b17c84..9f6eab2 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
@@ -634,11 +634,12 @@
     // If all layers are category NoPreference, use the current config.
     if (noPreferenceLayers + noVoteLayers == layers.size()) {
         ALOGV("All layers NoPreference");
-        const auto ascendingWithPreferred =
-                rankFrameRates(anchorGroup, RefreshRateOrder::Ascending, activeMode.getId());
+        constexpr float kScore = std::numeric_limits<float>::max();
+        FrameRateRanking currentMode;
+        currentMode.emplace_back(ScoredFrameRate{getActiveModeLocked(), kScore});
         SFTRACE_FORMAT_INSTANT("%s (All layers NoPreference)",
-                               to_string(ascendingWithPreferred.front().frameRateMode.fps).c_str());
-        return {ascendingWithPreferred, kNoSignals};
+                              to_string(currentMode.front().frameRateMode.fps).c_str());
+        return {currentMode, kNoSignals};
     }
 
     const bool smoothSwitchOnly = categorySmoothSwitchOnlyLayers > 0;
@@ -1065,7 +1066,7 @@
         ALOGV("%s: overriding to %s for uid=%d", __func__, to_string(overrideFps).c_str(), uid);
         SFTRACE_FORMAT_INSTANT("%s: overriding to %s for uid=%d", __func__,
                                to_string(overrideFps).c_str(), uid);
-        if (ATRACE_ENABLED() && FlagManager::getInstance().trace_frame_rate_override()) {
+        if (SFTRACE_ENABLED() && FlagManager::getInstance().trace_frame_rate_override()) {
             std::stringstream ss;
             ss << "FrameRateOverride " << uid;
             SFTRACE_INT(ss.str().c_str(), overrideFps.getIntValue());
@@ -1500,7 +1501,7 @@
             return str;
         };
         ALOGV("%s render rates: %s, isVrrDevice? %d", rangeName, stringifyModes().c_str(),
-              mIsVrrDevice);
+              mIsVrrDevice.load());
 
         return frameRateModes;
     };
@@ -1510,7 +1511,6 @@
 }
 
 bool RefreshRateSelector::isVrrDevice() const {
-    std::lock_guard lock(mLock);
     return mIsVrrDevice;
 }
 
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.h b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
index 4f491d9..6f9c146 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
@@ -383,6 +383,7 @@
 
         Callbacks platform;
         Callbacks kernel;
+        Callbacks vrr;
     };
 
     void setIdleTimerCallbacks(IdleTimerCallbacks callbacks) EXCLUDES(mIdleTimerCallbacksMutex) {
@@ -501,6 +502,9 @@
     std::optional<IdleTimerCallbacks::Callbacks> getIdleTimerCallbacks() const
             REQUIRES(mIdleTimerCallbacksMutex) {
         if (!mIdleTimerCallbacks) return {};
+
+        if (mIsVrrDevice) return mIdleTimerCallbacks->vrr;
+
         return mConfig.kernelIdleTimerController.has_value() ? mIdleTimerCallbacks->kernel
                                                              : mIdleTimerCallbacks->platform;
     }
@@ -536,7 +540,7 @@
     std::vector<FrameRateMode> mAppRequestFrameRates GUARDED_BY(mLock);
 
     // Caches whether the device is VRR-compatible based on the active display mode.
-    bool mIsVrrDevice GUARDED_BY(mLock) = false;
+    std::atomic_bool mIsVrrDevice = false;
 
     Policy mDisplayManagerPolicy GUARDED_BY(mLock);
     std::optional<Policy> mOverridePolicy GUARDED_BY(mLock);
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index c43e942..fbd788b 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -942,8 +942,9 @@
                 {.platform = {.onReset = [this] { idleTimerCallback(TimerState::Reset); },
                               .onExpired = [this] { idleTimerCallback(TimerState::Expired); }},
                  .kernel = {.onReset = [this] { kernelIdleTimerCallback(TimerState::Reset); },
-                            .onExpired =
-                                    [this] { kernelIdleTimerCallback(TimerState::Expired); }}});
+                            .onExpired = [this] { kernelIdleTimerCallback(TimerState::Expired); }},
+                 .vrr = {.onReset = [this] { mSchedulerCallback.vrrDisplayIdle(false); },
+                         .onExpired = [this] { mSchedulerCallback.vrrDisplayIdle(true); }}});
 
         pacesetter.selectorPtr->startIdleTimer();
 
diff --git a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
index 8dae3ca..900bce0 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
@@ -45,7 +45,7 @@
 }
 
 void traceEntry(const VSyncDispatchTimerQueueEntry& entry, nsecs_t now) {
-    if (!ATRACE_ENABLED() || !entry.wakeupTime().has_value() || !entry.targetVsync().has_value()) {
+    if (!SFTRACE_ENABLED() || !entry.wakeupTime().has_value() || !entry.targetVsync().has_value()) {
         return;
     }
 
diff --git a/services/surfaceflinger/Scheduler/src/Timer.cpp b/services/surfaceflinger/Scheduler/src/Timer.cpp
index fba3d58..20c58eb 100644
--- a/services/surfaceflinger/Scheduler/src/Timer.cpp
+++ b/services/surfaceflinger/Scheduler/src/Timer.cpp
@@ -188,7 +188,7 @@
         int nfds = epoll_wait(mEpollFd, events, DispatchType::MAX_DISPATCH_TYPE, -1);
 
         setDebugState(DebugState::Running);
-        if (ATRACE_ENABLED()) {
+        if (SFTRACE_ENABLED()) {
             ftl::Concat trace("TimerIteration #", iteration++);
             SFTRACE_NAME(trace.c_str());
         }
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index d00e762..605770d 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3320,9 +3320,9 @@
         });
     }
 
-    // Even though ATRACE_INT64 already checks if tracing is enabled, it doesn't prevent the
+    // Even though SFTRACE_INT64 already checks if tracing is enabled, it doesn't prevent the
     // side-effect of getTotalSize(), so we check that again here
-    if (ATRACE_ENABLED()) {
+    if (SFTRACE_ENABLED()) {
         // getTotalSize returns the total number of buffers that were allocated by SurfaceFlinger
         SFTRACE_INT64("Total Buffer Size", GraphicBufferAllocator::get().getTotalSize());
     }
@@ -4259,6 +4259,11 @@
     getHwComposer().setVsyncEnabled(displayId, enable ? hal::Vsync::ENABLE : hal::Vsync::DISABLE);
 }
 
+// This callback originates from Scheduler::applyPolicy, whose thread context may be the main thread
+// (via Scheduler::chooseRefreshRateForContent) or a OneShotTimer thread. The latter case imposes a
+// deadlock prevention rule: If the main thread is processing hotplug, then mStateLock is locked as
+// the main thread stops the OneShotTimer and joins with its thread. Hence, the OneShotTimer thread
+// must not lock mStateLock in this callback, which would deadlock with the join.
 void SurfaceFlinger::requestDisplayModes(std::vector<display::DisplayModeRequest> modeRequests) {
     if (mBootStage != BootStage::FINISHED) {
         ALOGV("Currently in the boot stage, skipping display mode changes");
@@ -4267,21 +4272,14 @@
 
     SFTRACE_CALL();
 
-    // If this is called from the main thread mStateLock must be locked before
-    // Currently the only way to call this function from the main thread is from
-    // Scheduler::chooseRefreshRateForContent
-
-    ConditionalLock lock(mStateLock, std::this_thread::get_id() != mMainThreadId);
-
     for (auto& request : modeRequests) {
         const auto& modePtr = request.mode.modePtr;
-
         const auto displayId = modePtr->getPhysicalDisplayId();
-        const auto display = getDisplayDeviceLocked(displayId);
 
-        if (!display) continue;
+        const auto selectorPtr = mDisplayModeController.selectorPtrFor(displayId);
+        if (!selectorPtr) continue;
 
-        if (display->refreshRateSelector().isModeAllowed(request.mode)) {
+        if (selectorPtr->isModeAllowed(request.mode)) {
             setDesiredMode(std::move(request));
         } else {
             ALOGV("%s: Mode %d is disallowed for display %s", __func__,
@@ -6749,14 +6747,24 @@
     rootProto->set_name("Offscreen Root");
     rootProto->set_parent(-1);
 
-    for (Layer* offscreenLayer : mOffscreenLayers) {
-        // Add layer as child of the fake root
-        rootProto->add_children(offscreenLayer->sequence);
+    perfetto::protos::LayersProto offscreenLayers =
+            LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
+                                            mLegacyLayers, traceFlags)
+                    .generate(mLayerHierarchyBuilder.getOffscreenHierarchy());
 
-        // Add layer
-        auto* layerProto = offscreenLayer->writeToProto(layersProto, traceFlags);
-        layerProto->set_parent(offscreenRootLayerId);
+    for (int i = 0; i < offscreenLayers.layers_size(); i++) {
+        perfetto::protos::LayerProto* layerProto = offscreenLayers.mutable_layers()->Mutable(i);
+        if (layerProto->parent() == -1) {
+            layerProto->set_parent(offscreenRootLayerId);
+            // Add layer as child of the fake root
+            rootProto->add_children(layerProto->id());
+        }
     }
+
+    layersProto.mutable_layers()->Reserve(layersProto.layers_size() +
+                                          offscreenLayers.layers_size());
+    std::copy(offscreenLayers.layers().begin(), offscreenLayers.layers().end(),
+              RepeatedFieldBackInserter(layersProto.mutable_layers()));
 }
 
 perfetto::protos::LayersProto SurfaceFlinger::dumpProtoFromMainThread(uint32_t traceFlags) {
@@ -7693,6 +7701,22 @@
     }));
 }
 
+void SurfaceFlinger::vrrDisplayIdle(bool idle) {
+    // Update the overlay on the main thread to avoid race conditions with
+    // RefreshRateSelector::getActiveMode
+    static_cast<void>(mScheduler->schedule([=, this] {
+        const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
+        if (!display) {
+            ALOGW("%s: default display is null", __func__);
+            return;
+        }
+        if (!display->isRefreshRateOverlayEnabled()) return;
+
+        display->onVrrIdle(idle);
+        mScheduler->scheduleFrame();
+    }));
+}
+
 std::pair<std::optional<KernelIdleTimerController>, std::chrono::milliseconds>
 SurfaceFlinger::getKernelIdleTimerProperties(PhysicalDisplayId displayId) {
     const bool isKernelIdleTimerHwcSupported = getHwComposer().getComposer()->isSupported(
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 8242844..2787c1f 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -704,6 +704,7 @@
                                      Fps renderRate) override;
     void onCommitNotComposited(PhysicalDisplayId pacesetterDisplayId) override
             REQUIRES(kMainThreadContext);
+    void vrrDisplayIdle(bool idle) override;
 
     // ICEPowerCallback overrides:
     void notifyCpuLoadUp() override;
@@ -733,7 +734,7 @@
     // Show hdr sdr ratio overlay
     bool mHdrSdrRatioOverlay = false;
 
-    void setDesiredMode(display::DisplayModeRequest&&) REQUIRES(mStateLock);
+    void setDesiredMode(display::DisplayModeRequest&&);
 
     status_t setActiveModeFromBackdoor(const sp<display::DisplayToken>&, DisplayModeId, Fps minFps,
                                        Fps maxFps);
@@ -1183,7 +1184,8 @@
     perfetto::protos::LayersProto dumpDrawingStateProto(uint32_t traceFlags) const
             REQUIRES(kMainThreadContext);
     void dumpOffscreenLayersProto(perfetto::protos::LayersProto& layersProto,
-                                  uint32_t traceFlags = LayerTracing::TRACE_ALL) const;
+                                  uint32_t traceFlags = LayerTracing::TRACE_ALL) const
+            REQUIRES(kMainThreadContext);
     google::protobuf::RepeatedPtrField<perfetto::protos::DisplayProto> dumpDisplayProto() const;
     void doActiveLayersTracingIfNeeded(bool isCompositionComputed, bool visibleRegionDirty,
                                        TimePoint, VsyncId) REQUIRES(kMainThreadContext);
diff --git a/services/surfaceflinger/TracedOrdinal.h b/services/surfaceflinger/TracedOrdinal.h
index eba1ecf..51f33a6 100644
--- a/services/surfaceflinger/TracedOrdinal.h
+++ b/services/surfaceflinger/TracedOrdinal.h
@@ -79,7 +79,7 @@
 
 private:
     void trace() {
-        if (CC_LIKELY(!ATRACE_ENABLED())) {
+        if (CC_LIKELY(!SFTRACE_ENABLED())) {
             return;
         }
 
diff --git a/services/surfaceflinger/common/include/common/trace.h b/services/surfaceflinger/common/include/common/trace.h
index c13cdde..344359e 100644
--- a/services/surfaceflinger/common/include/common/trace.h
+++ b/services/surfaceflinger/common/include/common/trace.h
@@ -20,6 +20,10 @@
 #include <cutils/trace.h>
 #include <stdint.h>
 
+#ifndef ATRACE_TAG
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+#endif
+
 #define SFTRACE_ENABLED() ATRACE_ENABLED()
 #define SFTRACE_BEGIN(name) ATRACE_BEGIN(name)
 #define SFTRACE_END() ATRACE_END()
diff --git a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
index 25437ca..9be0fc3 100644
--- a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
+++ b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
@@ -479,6 +479,16 @@
     EXPECT_EQ(surfaceFrame->getActuals().endTime, 456);
 }
 
+TEST_F(FrameTimelineTest, surfaceFrameEndTimeAcquireFenceUnsignaled) {
+    auto surfaceFrame = mFrameTimeline->createSurfaceFrameForToken({}, sPidOne, 0, sLayerIdOne,
+                                                                   "acquireFenceAfterQueue",
+                                                                   "acquireFenceAfterQueue",
+                                                                   /*isBuffer*/ true, sGameMode);
+    surfaceFrame->setActualQueueTime(123);
+    surfaceFrame->setAcquireFenceTime(Fence::SIGNAL_TIME_PENDING);
+    EXPECT_EQ(surfaceFrame->getActuals().endTime, 123);
+}
+
 TEST_F(FrameTimelineTest, surfaceFrameEndTimeAcquireFenceBeforeQueue) {
     auto surfaceFrame = mFrameTimeline->createSurfaceFrameForToken({}, sPidOne, 0, sLayerIdOne,
                                                                    "acquireFenceAfterQueue",
diff --git a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
index dec5fa5..8f21cdb 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
@@ -31,6 +31,7 @@
     MOCK_METHOD(void, onExpectedPresentTimePosted, (TimePoint, ftl::NonNull<DisplayModePtr>, Fps),
                 (override));
     MOCK_METHOD(void, onCommitNotComposited, (PhysicalDisplayId), (override));
+    MOCK_METHOD(void, vrrDisplayIdle, (bool), (override));
 };
 
 struct NoOpSchedulerCallback final : ISchedulerCallback {
@@ -41,6 +42,7 @@
     void onChoreographerAttached() override {}
     void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
     void onCommitNotComposited(PhysicalDisplayId) override {}
+    void vrrDisplayIdle(bool) override {}
 };
 
 } // namespace android::scheduler::mock