diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index a2868c6..b9a293f 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -302,23 +302,25 @@
 // So we pass in a weak pointer to the BBQ and if it still alive, then we release the buffer.
 // Otherwise, this is a no-op.
 static void releaseBufferCallbackThunk(wp<BLASTBufferQueue> context, uint64_t graphicBufferId,
-                                       const sp<Fence>& releaseFence) {
+                                       const sp<Fence>& releaseFence, uint32_t transformHint) {
     sp<BLASTBufferQueue> blastBufferQueue = context.promote();
     ALOGV("releaseBufferCallbackThunk graphicBufferId=%" PRIu64 " blastBufferQueue=%s",
           graphicBufferId, blastBufferQueue ? "alive" : "dead");
     if (blastBufferQueue) {
-        blastBufferQueue->releaseBufferCallback(graphicBufferId, releaseFence);
+        blastBufferQueue->releaseBufferCallback(graphicBufferId, releaseFence, transformHint);
     }
 }
 
 void BLASTBufferQueue::releaseBufferCallback(uint64_t graphicBufferId,
-                                             const sp<Fence>& releaseFence) {
+                                             const sp<Fence>& releaseFence,
+                                             uint32_t transformHint) {
     ATRACE_CALL();
     std::unique_lock _lock{mMutex};
     BQA_LOGV("releaseBufferCallback graphicBufferId=%" PRIu64, graphicBufferId);
 
     if (mSurfaceControl != nullptr) {
-        mTransformHint = mSurfaceControl->getTransformHint();
+        mTransformHint = transformHint;
+        mSurfaceControl->setTransformHint(transformHint);
         mBufferItemConsumer->setTransformHint(mTransformHint);
     }
 
@@ -412,7 +414,7 @@
 
     auto releaseBufferCallback =
             std::bind(releaseBufferCallbackThunk, wp<BLASTBufferQueue>(this) /* callbackContext */,
-                      std::placeholders::_1, std::placeholders::_2);
+                      std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);
     t->setBuffer(mSurfaceControl, buffer, releaseBufferCallback);
     t->setDataspace(mSurfaceControl, static_cast<ui::Dataspace>(bufferItem.mDataSpace));
     t->setHdrMetadata(mSurfaceControl, bufferItem.mHdrMetadata);
diff --git a/libs/gui/ITransactionCompletedListener.cpp b/libs/gui/ITransactionCompletedListener.cpp
index f74f91e..63d07ba 100644
--- a/libs/gui/ITransactionCompletedListener.cpp
+++ b/libs/gui/ITransactionCompletedListener.cpp
@@ -251,10 +251,11 @@
                                                                   stats);
     }
 
-    void onReleaseBuffer(uint64_t graphicBufferId, sp<Fence> releaseFence) override {
+    void onReleaseBuffer(uint64_t graphicBufferId, sp<Fence> releaseFence,
+                         uint32_t transformHint) override {
         callRemoteAsync<decltype(
                 &ITransactionCompletedListener::onReleaseBuffer)>(Tag::ON_RELEASE_BUFFER,
-                                                                  graphicBufferId, releaseFence);
+                graphicBufferId, releaseFence, transformHint);
     }
 };
 
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 371454a..9610437 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -331,7 +331,8 @@
                         callback(surfaceStats.previousBufferId,
                                  surfaceStats.previousReleaseFence
                                          ? surfaceStats.previousReleaseFence
-                                         : Fence::NO_FENCE);
+                                         : Fence::NO_FENCE,
+                                 surfaceStats.transformHint);
                     }
                 }
             }
@@ -357,7 +358,8 @@
 }
 
 void TransactionCompletedListener::onReleaseBuffer(uint64_t graphicBufferId,
-                                                   sp<Fence> releaseFence) {
+                                                   sp<Fence> releaseFence,
+                                                   uint32_t transformHint) {
     ReleaseBufferCallback callback;
     {
         std::scoped_lock<std::mutex> lock(mMutex);
@@ -367,7 +369,7 @@
         ALOGE("Could not call release buffer callback, buffer not found %" PRIu64, graphicBufferId);
         return;
     }
-    callback(graphicBufferId, releaseFence);
+    callback(graphicBufferId, releaseFence, transformHint);
 }
 
 ReleaseBufferCallback TransactionCompletedListener::popReleaseBufferCallbackLocked(
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index c4ca399..3ab1ee1 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -89,7 +89,8 @@
 
     void transactionCallback(nsecs_t latchTime, const sp<Fence>& presentFence,
             const std::vector<SurfaceControlStats>& stats);
-    void releaseBufferCallback(uint64_t graphicBufferId, const sp<Fence>& releaseFence);
+    void releaseBufferCallback(uint64_t graphicBufferId, const sp<Fence>& releaseFence,
+                               uint32_t transformHint);
     void setNextTransaction(SurfaceComposerClient::Transaction *t);
     void mergeWithNextTransaction(SurfaceComposerClient::Transaction* t, uint64_t frameNumber);
     void setTransactionCompleteCallback(uint64_t frameNumber,
diff --git a/libs/gui/include/gui/ITransactionCompletedListener.h b/libs/gui/include/gui/ITransactionCompletedListener.h
index 2d71194..3bfeef1 100644
--- a/libs/gui/include/gui/ITransactionCompletedListener.h
+++ b/libs/gui/include/gui/ITransactionCompletedListener.h
@@ -158,7 +158,8 @@
 
     virtual void onTransactionCompleted(ListenerStats stats) = 0;
 
-    virtual void onReleaseBuffer(uint64_t graphicBufferId, sp<Fence> releaseFence) = 0;
+    virtual void onReleaseBuffer(uint64_t graphicBufferId, sp<Fence> releaseFence,
+                                 uint32_t transformHint) = 0;
 };
 
 class BnTransactionCompletedListener : public SafeBnInterface<ITransactionCompletedListener> {
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 2582882..62a782f 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -82,7 +82,8 @@
         std::function<void(nsecs_t /*latchTime*/, const sp<Fence>& /*presentFence*/,
                            const std::vector<SurfaceControlStats>& /*stats*/)>;
 using ReleaseBufferCallback =
-        std::function<void(uint64_t /* graphicsBufferId */, const sp<Fence>& /*releaseFence*/)>;
+        std::function<void(uint64_t /* graphicsBufferId */, const sp<Fence>& /*releaseFence*/,
+                           uint32_t transformHint)>;
 
 using SurfaceStatsCallback =
         std::function<void(void* /*context*/, nsecs_t /*latchTime*/,
@@ -716,7 +717,8 @@
 
     // BnTransactionCompletedListener overrides
     void onTransactionCompleted(ListenerStats stats) override;
-    void onReleaseBuffer(uint64_t /* graphicsBufferId */, sp<Fence> releaseFence) override;
+    void onReleaseBuffer(uint64_t /* graphicsBufferId */, sp<Fence> releaseFence,
+                         uint32_t transformHint) override;
 
 private:
     ReleaseBufferCallback popReleaseBufferCallbackLocked(uint64_t /* graphicsBufferId */);
diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 5298772..d68a0e0 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -43,11 +43,13 @@
 using PresentState = frametimeline::SurfaceFrame::PresentState;
 namespace {
 void callReleaseBufferCallback(const sp<ITransactionCompletedListener>& listener,
-                               const sp<GraphicBuffer>& buffer, const sp<Fence>& releaseFence) {
+                               const sp<GraphicBuffer>& buffer, const sp<Fence>& releaseFence,
+                               uint32_t transformHint) {
     if (!listener) {
         return;
     }
-    listener->onReleaseBuffer(buffer->getId(), releaseFence ? releaseFence : Fence::NO_FENCE);
+    listener->onReleaseBuffer(buffer->getId(), releaseFence ? releaseFence : Fence::NO_FENCE,
+                              transformHint);
 }
 } // namespace
 
@@ -72,7 +74,8 @@
     // issue with the clone layer trying to use the texture.
     if (mBufferInfo.mBuffer != nullptr && !isClone()) {
         callReleaseBufferCallback(mDrawingState.releaseBufferListener,
-                                  mBufferInfo.mBuffer->getBuffer(), mBufferInfo.mFence);
+                                  mBufferInfo.mBuffer->getBuffer(), mBufferInfo.mFence,
+                                  mTransformHint);
     }
 }
 
@@ -427,7 +430,8 @@
             // call any release buffer callbacks if set.
             callReleaseBufferCallback(mCurrentState.releaseBufferListener,
                                       mCurrentState.buffer->getBuffer(),
-                                      mCurrentState.acquireFence);
+                                      mCurrentState.acquireFence,
+                                      mTransformHint);
             decrementPendingBufferCount();
             if (mCurrentState.bufferSurfaceFrameTX != nullptr) {
                 addSurfaceFrameDroppedForBuffer(mCurrentState.bufferSurfaceFrameTX);
@@ -946,7 +950,8 @@
         // then we will drop a buffer and should decrement the pending buffer count and
         // call any release buffer callbacks if set.
         callReleaseBufferCallback(mDrawingState.releaseBufferListener,
-                                  mDrawingState.buffer->getBuffer(), mDrawingState.acquireFence);
+                                  mDrawingState.buffer->getBuffer(), mDrawingState.acquireFence,
+                                  mTransformHint);
         decrementPendingBufferCount();
     }
 }
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 2b4f9ef..a4b6fef 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2894,6 +2894,7 @@
     // Commit layer transactions. This needs to happen after display transactions are
     // committed because some geometry logic relies on display orientation.
     if ((transactionFlags & eTraversalNeeded) || mForceTraversal || displayTransactionNeeded) {
+        mForceTraversal = false;
         mCurrentState.traverse([&](Layer* layer) {
             uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded);
             if (!trFlags && !displayTransactionNeeded) return;
@@ -4474,6 +4475,11 @@
     }
     const auto vsyncPeriod = mRefreshRateConfigs->getCurrentRefreshRate().getVsyncPeriod();
     if (currentMode == hal::PowerMode::OFF) {
+        // Keep uclamp in a separate syscall and set it before changing to RT due to b/190237315.
+        // We can merge the syscall later.
+        if (SurfaceFlinger::setSchedAttr(true) != NO_ERROR) {
+            ALOGW("Couldn't set uclamp.min on display on: %s\n", strerror(errno));
+        }
         if (SurfaceFlinger::setSchedFifo(true) != NO_ERROR) {
             ALOGW("Couldn't set SCHED_FIFO on display on: %s\n", strerror(errno));
         }
@@ -4492,6 +4498,9 @@
         if (SurfaceFlinger::setSchedFifo(false) != NO_ERROR) {
             ALOGW("Couldn't set SCHED_OTHER on display off: %s\n", strerror(errno));
         }
+        if (SurfaceFlinger::setSchedAttr(false) != NO_ERROR) {
+            ALOGW("Couldn't set uclamp.min on display off: %s\n", strerror(errno));
+        }
         if (display->isPrimary() && currentMode != hal::PowerMode::DOZE_SUSPEND) {
             mScheduler->disableHardwareVsync(true);
             mScheduler->onScreenReleased(mAppConnectionHandle);
@@ -5841,6 +5850,44 @@
     if (sched_setscheduler(0, sched_policy, &param) != 0) {
         return -errno;
     }
+
+    return NO_ERROR;
+}
+
+status_t SurfaceFlinger::setSchedAttr(bool enabled) {
+    static const unsigned int kUclampMin =
+            base::GetUintProperty<unsigned int>("ro.surface_flinger.uclamp.min", 0U);
+
+    if (!kUclampMin) {
+        // uclamp.min set to 0 (default), skip setting
+        return NO_ERROR;
+    }
+
+    // Currently, there is no wrapper in bionic: b/183240349.
+    struct sched_attr {
+        uint32_t size;
+        uint32_t sched_policy;
+        uint64_t sched_flags;
+        int32_t sched_nice;
+        uint32_t sched_priority;
+        uint64_t sched_runtime;
+        uint64_t sched_deadline;
+        uint64_t sched_period;
+        uint32_t sched_util_min;
+        uint32_t sched_util_max;
+    };
+
+    sched_attr attr = {};
+    attr.size = sizeof(attr);
+
+    attr.sched_flags = (SCHED_FLAG_KEEP_ALL | SCHED_FLAG_UTIL_CLAMP);
+    attr.sched_util_min = enabled ? kUclampMin : 0;
+    attr.sched_util_max = 1024;
+
+    if (syscall(__NR_sched_setattr, 0, &attr, 0)) {
+        return -errno;
+    }
+
     return NO_ERROR;
 }
 
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index be3417b..519a5ab 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -186,6 +186,9 @@
     // set main thread scheduling policy
     static status_t setSchedFifo(bool enabled) ANDROID_API;
 
+    // set main thread scheduling attributes
+    static status_t setSchedAttr(bool enabled);
+
     static char const* getServiceName() ANDROID_API { return "SurfaceFlinger"; }
 
     // This is the phase offset in nanoseconds of the software vsync event
diff --git a/services/surfaceflinger/main_surfaceflinger.cpp b/services/surfaceflinger/main_surfaceflinger.cpp
index 9686523..673239d 100644
--- a/services/surfaceflinger/main_surfaceflinger.cpp
+++ b/services/surfaceflinger/main_surfaceflinger.cpp
@@ -89,6 +89,12 @@
     // binder threads to 4.
     ProcessState::self()->setThreadPoolMaxThreadCount(4);
 
+    // Set uclamp.min setting on all threads, maybe an overkill but we want
+    // to cover important threads like RenderEngine.
+    if (SurfaceFlinger::setSchedAttr(true) != NO_ERROR) {
+        ALOGW("Couldn't set uclamp.min: %s\n", strerror(errno));
+    }
+
     // The binder threadpool we start will inherit sched policy and priority
     // of (this) creating thread. We want the binder thread pool to have
     // SCHED_FIFO policy and priority 1 (lowest RT priority)