diff --git a/core/java/android/window/TransitionInfo.java b/core/java/android/window/TransitionInfo.java
index d2a16a3..61f340a 100644
--- a/core/java/android/window/TransitionInfo.java
+++ b/core/java/android/window/TransitionInfo.java
@@ -29,6 +29,7 @@
 import static android.view.WindowManager.LayoutParams.ROTATION_ANIMATION_UNSPECIFIED;
 import static android.view.WindowManager.TRANSIT_CHANGE;
 import static android.view.WindowManager.TRANSIT_CLOSE;
+import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_APPEARING;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY;
 import static android.view.WindowManager.TRANSIT_NONE;
 import static android.view.WindowManager.TRANSIT_OPEN;
@@ -361,6 +362,15 @@
     }
 
     /**
+     * Whether this transition contains any changes to the window hierarchy,
+     * including keyguard visibility.
+     */
+    public boolean hasChangesOrSideEffects() {
+        return !mChanges.isEmpty() || isKeyguardGoingAway()
+                || (mFlags & TRANSIT_FLAG_KEYGUARD_APPEARING) != 0;
+    }
+
+    /**
      * Whether this transition includes keyguard going away.
      */
     public boolean isKeyguardGoingAway() {
diff --git a/core/tests/coretests/src/android/provider/DeviceConfigTest.java b/core/tests/coretests/src/android/provider/DeviceConfigTest.java
index 1ea20f1..a68833c9 100644
--- a/core/tests/coretests/src/android/provider/DeviceConfigTest.java
+++ b/core/tests/coretests/src/android/provider/DeviceConfigTest.java
@@ -67,6 +67,7 @@
         deleteViaContentProvider(NAMESPACE, KEY);
         deleteViaContentProvider(NAMESPACE, KEY2);
         deleteViaContentProvider(NAMESPACE, KEY3);
+        DeviceConfig.setSyncDisabledMode(DeviceConfig.SYNC_DISABLED_MODE_NONE);
     }
 
     @Test
diff --git a/core/tests/coretests/src/android/widget/HorizontalScrollViewFunctionalTest.java b/core/tests/coretests/src/android/widget/HorizontalScrollViewFunctionalTest.java
index 86f26e5..df212eb 100644
--- a/core/tests/coretests/src/android/widget/HorizontalScrollViewFunctionalTest.java
+++ b/core/tests/coretests/src/android/widget/HorizontalScrollViewFunctionalTest.java
@@ -17,7 +17,9 @@
 package android.widget;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
+import android.content.Context;
 import android.platform.test.annotations.Presubmit;
 import android.util.PollingCheck;
 
@@ -32,6 +34,9 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
 @RunWith(AndroidJUnit4.class)
 @MediumTest
 @Presubmit
@@ -49,23 +54,43 @@
     }
 
     @Test
-    public void testScrollAfterFlingTop() {
-        mHorizontalScrollView.scrollTo(100, 0);
-        mHorizontalScrollView.fling(-10000);
-        PollingCheck.waitFor(() -> mHorizontalScrollView.mEdgeGlowLeft.getDistance() > 0);
-        PollingCheck.waitFor(() -> mHorizontalScrollView.mEdgeGlowLeft.getDistance() == 0f);
+    public void testScrollAfterFlingLeft() throws Throwable {
+        WatchedEdgeEffect edgeEffect = new WatchedEdgeEffect(mActivity);
+        mHorizontalScrollView.mEdgeGlowLeft = edgeEffect;
+        mActivityRule.runOnUiThread(() -> mHorizontalScrollView.scrollTo(100, 0));
+        mActivityRule.runOnUiThread(() -> mHorizontalScrollView.fling(-10000));
+        assertTrue(edgeEffect.onAbsorbLatch.await(1, TimeUnit.SECONDS));
+        mActivityRule.runOnUiThread(() -> {}); // let the absorb takes effect -- least one frame
+        PollingCheck.waitFor(() -> edgeEffect.getDistance() == 0f);
         assertEquals(0, mHorizontalScrollView.getScrollX());
     }
 
     @Test
-    public void testScrollAfterFlingBottom() {
+    public void testScrollAfterFlingRight() throws Throwable {
+        WatchedEdgeEffect edgeEffect = new WatchedEdgeEffect(mActivity);
+        mHorizontalScrollView.mEdgeGlowRight = edgeEffect;
         int childWidth = mHorizontalScrollView.getChildAt(0).getWidth();
         int maxScroll = childWidth - mHorizontalScrollView.getWidth();
-        mHorizontalScrollView.scrollTo(maxScroll - 100, 0);
-        mHorizontalScrollView.fling(10000);
-        PollingCheck.waitFor(() -> mHorizontalScrollView.mEdgeGlowRight.getDistance() > 0);
+        mActivityRule.runOnUiThread(() -> mHorizontalScrollView.scrollTo(maxScroll - 100, 0));
+        mActivityRule.runOnUiThread(() -> mHorizontalScrollView.fling(10000));
+        assertTrue(edgeEffect.onAbsorbLatch.await(1, TimeUnit.SECONDS));
+        mActivityRule.runOnUiThread(() -> {}); // let the absorb takes effect -- at least one frame
         PollingCheck.waitFor(() -> mHorizontalScrollView.mEdgeGlowRight.getDistance() == 0f);
         assertEquals(maxScroll, mHorizontalScrollView.getScrollX());
     }
+
+    static class WatchedEdgeEffect extends EdgeEffect {
+        public CountDownLatch onAbsorbLatch = new CountDownLatch(1);
+
+        WatchedEdgeEffect(Context context) {
+            super(context);
+        }
+
+        @Override
+        public void onAbsorb(int velocity) {
+            super.onAbsorb(velocity);
+            onAbsorbLatch.countDown();
+        }
+    }
 }
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
index 3b1801b..1c79239 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
@@ -23,6 +23,7 @@
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS;
 import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
+import static android.content.Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT;
 import static android.content.res.Configuration.SMALLEST_SCREEN_WIDTH_DP_UNDEFINED;
 import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.RemoteAnimationTarget.MODE_OPENING;
@@ -392,6 +393,13 @@
         return mMainStage.isActive();
     }
 
+    /** @return whether this transition-request has the launch-adjacent flag. */
+    public boolean requestHasLaunchAdjacentFlag(TransitionRequestInfo request) {
+        final ActivityManager.RunningTaskInfo triggerTask = request.getTriggerTask();
+        return triggerTask != null && triggerTask.baseIntent != null
+                && (triggerTask.baseIntent.getFlags() & FLAG_ACTIVITY_LAUNCH_ADJACENT) != 0;
+    }
+
     /** @return whether the transition-request implies entering pip from split. */
     public boolean requestImpliesSplitToPip(TransitionRequestInfo request) {
         if (!isSplitActive() || !mMixedHandler.requestHasPipEnter(request)) {
@@ -2236,6 +2244,25 @@
         return SPLIT_POSITION_UNDEFINED;
     }
 
+    /**
+     * Returns the {@link StageType} where {@param token} is being used
+     * {@link SplitScreen#STAGE_TYPE_UNDEFINED} otherwise
+     */
+    @StageType
+    public int getSplitItemStage(@Nullable WindowContainerToken token) {
+        if (token == null) {
+            return STAGE_TYPE_UNDEFINED;
+        }
+
+        if (mMainStage.containsToken(token)) {
+            return STAGE_TYPE_MAIN;
+        } else if (mSideStage.containsToken(token)) {
+            return STAGE_TYPE_SIDE;
+        }
+
+        return STAGE_TYPE_UNDEFINED;
+    }
+
     @Override
     public void setLayoutOffsetTarget(int offsetX, int offsetY, SplitLayout layout) {
         final StageTaskListener topLeftStage =
@@ -2434,10 +2461,20 @@
                         EXIT_REASON_SCREEN_LOCKED_SHOW_ON_TOP);
             }
 
-            // When split in the background, it should be only opening/dismissing transition and
-            // would keep out not empty. Prevent intercepting all transitions for split screen when
-            // it is in the background and not identify to handle it.
-            return (!out.isEmpty() || isSplitScreenVisible()) ? out : null;
+            if (!out.isEmpty()) {
+                // One of the cases above handled it
+                return out;
+            } else if (isSplitScreenVisible()) {
+                // If split is visible, only defer handling this transition if it's launching
+                // adjacent while there is already a split pair -- this may trigger PIP and
+                // that should be handled by the mixed handler.
+                final boolean deferTransition = requestHasLaunchAdjacentFlag(request)
+                    && mMainStage.getChildCount() != 0 && mSideStage.getChildCount() != 0;
+                return !deferTransition ? out : null;
+            }
+            // Don't intercept the transition if we are not handling it as a part of one of the
+            // cases above and it is not already visible
+            return null;
         } else {
             if (isOpening && getStageOfTask(triggerTask) != null) {
                 // One task is appearing into split, prepare to enter split screen.
@@ -2473,7 +2510,16 @@
                 mRecentTasks.ifPresent(
                         recentTasks -> recentTasks.removeSplitPair(triggerTask.taskId));
             }
-            prepareExitSplitScreen(STAGE_TYPE_UNDEFINED, outWCT);
+            @StageType int topStage = STAGE_TYPE_UNDEFINED;
+            if (isSplitScreenVisible()) {
+                // Get the stage where a child exists to keep that stage onTop
+                if (mMainStage.getChildCount() != 0 && mSideStage.getChildCount() == 0) {
+                    topStage = STAGE_TYPE_MAIN;
+                } else if (mSideStage.getChildCount() != 0 && mMainStage.getChildCount() == 0) {
+                    topStage = STAGE_TYPE_SIDE;
+                }
+            }
+            prepareExitSplitScreen(topStage, outWCT);
         }
     }
 
@@ -2890,7 +2936,11 @@
         return SPLIT_POSITION_UNDEFINED;
     }
 
-    /** Synchronize split-screen state with transition and make appropriate preparations. */
+    /**
+     * Synchronize split-screen state with transition and make appropriate preparations.
+     * @param toStage The stage that will not be dismissed. If set to
+     *        {@link SplitScreen#STAGE_TYPE_UNDEFINED} then both stages will be dismissed
+     */
     public void prepareDismissAnimation(@StageType int toStage, @ExitReason int dismissReason,
             @NonNull TransitionInfo info, @NonNull SurfaceControl.Transaction t,
             @NonNull SurfaceControl.Transaction finishT) {
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultMixedHandler.java b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultMixedHandler.java
index 4897c4e..f0bb665 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultMixedHandler.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultMixedHandler.java
@@ -50,6 +50,7 @@
 import com.android.wm.shell.pip.PipTransitionController;
 import com.android.wm.shell.protolog.ShellProtoLogGroup;
 import com.android.wm.shell.recents.RecentsTransitionHandler;
+import com.android.wm.shell.splitscreen.SplitScreen;
 import com.android.wm.shell.splitscreen.SplitScreenController;
 import com.android.wm.shell.splitscreen.StageCoordinator;
 import com.android.wm.shell.sysui.ShellInit;
@@ -511,8 +512,26 @@
             // make a new startTransaction because pip's startEnterAnimation "consumes" it so
             // we need a separate one to send over to launcher.
             SurfaceControl.Transaction otherStartT = new SurfaceControl.Transaction();
+            @SplitScreen.StageType int topStageToKeep = STAGE_TYPE_UNDEFINED;
+            if (mSplitHandler.isSplitScreenVisible()) {
+                // The non-going home case, we could be pip-ing one of the split stages and keep
+                // showing the other
+                for (int i = info.getChanges().size() - 1; i >= 0; --i) {
+                    TransitionInfo.Change change = info.getChanges().get(i);
+                    if (change == pipChange) {
+                        // Ignore the change/task that's going into Pip
+                        continue;
+                    }
+                    @SplitScreen.StageType int splitItemStage =
+                            mSplitHandler.getSplitItemStage(change.getLastParent());
+                    if (splitItemStage != STAGE_TYPE_UNDEFINED) {
+                        topStageToKeep = splitItemStage;
+                        break;
+                    }
+                }
+            }
             // Let split update internal state for dismiss.
-            mSplitHandler.prepareDismissAnimation(STAGE_TYPE_UNDEFINED,
+            mSplitHandler.prepareDismissAnimation(topStageToKeep,
                     EXIT_REASON_CHILD_TASK_ENTER_PIP, everythingElse, otherStartT,
                     finishTransaction);
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/SleepHandler.java b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/SleepHandler.java
index 87c438a..ba0ef20 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/SleepHandler.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/SleepHandler.java
@@ -19,13 +19,12 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.os.IBinder;
+import android.util.Slog;
 import android.view.SurfaceControl;
 import android.window.TransitionInfo;
 import android.window.TransitionRequestInfo;
 import android.window.WindowContainerTransaction;
 
-import java.util.ArrayList;
-
 /**
  * A Simple handler that tracks SLEEP transitions. We track them specially since we (ab)use these
  * as sentinels for fast-forwarding through animations when the screen is off.
@@ -34,30 +33,25 @@
  * don't register it like a normal handler.
  */
 class SleepHandler implements Transitions.TransitionHandler {
-    final ArrayList<IBinder> mSleepTransitions = new ArrayList<>();
-
     @Override
     public boolean startAnimation(@NonNull IBinder transition, @NonNull TransitionInfo info,
             @NonNull SurfaceControl.Transaction startTransaction,
             @NonNull SurfaceControl.Transaction finishTransaction,
             @NonNull Transitions.TransitionFinishCallback finishCallback) {
-        mSleepTransitions.remove(transition);
-        startTransaction.apply();
-        finishCallback.onTransitionFinished(null);
-        return true;
+        if (info.hasChangesOrSideEffects()) {
+            Slog.e(Transitions.TAG, "Real changes included in a SLEEP transition");
+            return false;
+        } else {
+            startTransaction.apply();
+            finishCallback.onTransitionFinished(null);
+            return true;
+        }
     }
 
     @Override
     @Nullable
     public WindowContainerTransaction handleRequest(@NonNull IBinder transition,
             @NonNull TransitionRequestInfo request) {
-        mSleepTransitions.add(transition);
         return new WindowContainerTransaction();
     }
-
-    @Override
-    public void onTransitionConsumed(@NonNull IBinder transition, boolean aborted,
-            @Nullable SurfaceControl.Transaction finishTransaction) {
-        mSleepTransitions.remove(transition);
-    }
 }
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java
index 99a1ac6..b32e0d6 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java
@@ -1152,7 +1152,7 @@
     }
 
     @Test
-    public void testEmptyTransitionStillReportsKeyguardGoingAway() {
+    public void testEmptyTransition_withKeyguardGoingAway_plays() {
         Transitions transitions = createTestTransitions();
         transitions.replaceDefaultHandlerForTest(mDefaultHandler);
 
@@ -1171,6 +1171,65 @@
     }
 
     @Test
+    public void testSleepTransition_withKeyguardGoingAway_plays(){
+        Transitions transitions = createTestTransitions();
+        transitions.replaceDefaultHandlerForTest(mDefaultHandler);
+
+        IBinder transitToken = new Binder();
+        transitions.requestStartTransition(transitToken,
+                new TransitionRequestInfo(TRANSIT_SLEEP, null /* trigger */, null /* remote */));
+
+        // Make a no-op transition
+        TransitionInfo info = new TransitionInfoBuilder(
+                TRANSIT_SLEEP, TRANSIT_FLAG_KEYGUARD_GOING_AWAY, true /* noOp */).build();
+        transitions.onTransitionReady(transitToken, info, new StubTransaction(),
+                new StubTransaction());
+
+        // If keyguard-going-away flag set, then it shouldn't be aborted.
+        assertEquals(1, mDefaultHandler.activeCount());
+    }
+
+    @Test
+    public void testSleepTransition_withChanges_plays(){
+        Transitions transitions = createTestTransitions();
+        transitions.replaceDefaultHandlerForTest(mDefaultHandler);
+
+        IBinder transitToken = new Binder();
+        transitions.requestStartTransition(transitToken,
+                new TransitionRequestInfo(TRANSIT_SLEEP, null /* trigger */, null /* remote */));
+
+        // Make a transition with some changes
+        TransitionInfo info = new TransitionInfoBuilder(TRANSIT_SLEEP)
+                .addChange(TRANSIT_OPEN).build();
+        info.setTrack(0);
+        transitions.onTransitionReady(transitToken, info, new StubTransaction(),
+                new StubTransaction());
+
+        // If there is an actual change, then it shouldn't be aborted.
+        assertEquals(1, mDefaultHandler.activeCount());
+    }
+
+
+    @Test
+    public void testSleepTransition_empty_SyncBySleepHandler() {
+        Transitions transitions = createTestTransitions();
+        transitions.replaceDefaultHandlerForTest(mDefaultHandler);
+
+        IBinder transitToken = new Binder();
+        transitions.requestStartTransition(transitToken,
+                new TransitionRequestInfo(TRANSIT_SLEEP, null /* trigger */, null /* remote */));
+
+        // Make a no-op transition
+        TransitionInfo info = new TransitionInfoBuilder(
+                TRANSIT_SLEEP, 0x0, true /* noOp */).build();
+        transitions.onTransitionReady(transitToken, info, new StubTransaction(),
+                new StubTransaction());
+
+        // If there is nothing to actually play, it should not be offered to handlers.
+        assertEquals(0, mDefaultHandler.activeCount());
+    }
+
+    @Test
     public void testMultipleTracks() {
         Transitions transitions = createTestTransitions();
         transitions.replaceDefaultHandlerForTest(mDefaultHandler);
diff --git a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
index ddd9463..9a5f43b 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
@@ -554,6 +554,12 @@
         if (shouldNotRunAnimation(tilesToReveal)) {
             return;
         }
+        // This method has side effects (beings the fake drag, if it returns true). If we have
+        // decided that we want to do a tile reveal, we do a last check to verify that we can
+        // actually perform a fake drag.
+        if (!beginFakeDrag()) {
+            return;
+        }
 
         final int lastPageNumber = mPages.size() - 1;
         final TileLayout lastPage = mPages.get(lastPageNumber);
@@ -588,8 +594,10 @@
     }
 
     private boolean shouldNotRunAnimation(Set<String> tilesToReveal) {
+        // None of these have side effects. That way, we don't need to rely on short-circuiting
+        // behavior
         boolean noAnimationNeeded = tilesToReveal.isEmpty() || mPages.size() < 2;
-        boolean scrollingInProgress = getScrollX() != 0 || !beginFakeDrag();
+        boolean scrollingInProgress = getScrollX() != 0 || !isFakeDragging();
         // isRunningInTestHarness() to disable animation in functional testing as it caused
         // flakiness and is not needed there. Alternative solutions were more complex and would
         // still be either potentially flaky or modify internal data.
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityInputFilter.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityInputFilter.java
index 8e7d277..2519f4e 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityInputFilter.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityInputFilter.java
@@ -388,11 +388,19 @@
     @Override
     public void onMotionEvent(MotionEvent transformedEvent, MotionEvent rawEvent,
             int policyFlags) {
+        if (!mInstalled) {
+            Slog.w(TAG, "onMotionEvent called before input filter installed!");
+            return;
+        }
         sendInputEvent(transformedEvent, policyFlags);
     }
 
     @Override
     public void onKeyEvent(KeyEvent event, int policyFlags) {
+        if (!mInstalled) {
+            Slog.w(TAG, "onKeyEvent called before input filter installed!");
+            return;
+        }
         sendInputEvent(event, policyFlags);
     }
 
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 68b649c..c808c8e 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -561,7 +561,7 @@
     static final int PROC_START_TIMEOUT = 10 * 1000 * Build.HW_TIMEOUT_MULTIPLIER;
 
     // How long we wait for a launched process to complete its app startup before we ANR.
-    static final int BIND_APPLICATION_TIMEOUT = 10 * 1000 * Build.HW_TIMEOUT_MULTIPLIER;
+    static final int BIND_APPLICATION_TIMEOUT = 20 * 1000 * Build.HW_TIMEOUT_MULTIPLIER;
 
     // How long we wait to kill an application zygote, after the last process using
     // it has gone away.
diff --git a/services/core/java/com/android/server/am/AppWaitingForDebuggerDialog.java b/services/core/java/com/android/server/am/AppWaitingForDebuggerDialog.java
index 9b5f18c..710278d 100644
--- a/services/core/java/com/android/server/am/AppWaitingForDebuggerDialog.java
+++ b/services/core/java/com/android/server/am/AppWaitingForDebuggerDialog.java
@@ -16,6 +16,8 @@
 
 package com.android.server.am;
 
+import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_SHOW_FOR_ALL_USERS;
+
 import android.content.Context;
 import android.content.DialogInterface;
 import android.os.Handler;
@@ -54,6 +56,7 @@
         setButton(DialogInterface.BUTTON_POSITIVE, "Force Close", mHandler.obtainMessage(1, app));
         setTitle("Waiting For Debugger");
         WindowManager.LayoutParams attrs = getWindow().getAttributes();
+        attrs.privateFlags |= SYSTEM_FLAG_SHOW_FOR_ALL_USERS;
         attrs.setTitle("Waiting For Debugger: " + app.info.processName);
         getWindow().setAttributes(attrs);
     }
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index 6466b44..bc7e156 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -2868,7 +2868,16 @@
 
     // Check if the target app is in cached mode
     private boolean isUidCached(int uid) {
-        if (mActivityManagerInternal == null) {
+        // Only query procState and importance for Android apps, which have UIDs starting
+        // from FIRST_APPLICATION_UID. .
+        //
+        // Other processes with UID < FIRST_APPLICATION_UID can also register to DMS for
+        // display events. E.g. Android Studio executes a screen sharing process to provide
+        // display mirroring functionality. That process inherits the UID of adb. Depending
+        // on adb mode, it can be shell (2000) or root (0). Those processes are not Android
+        // apps and not managed by AMS. Treat them as non-cached so never ignore or defer
+        // display events to them.
+        if (mActivityManagerInternal == null || uid < FIRST_APPLICATION_UID) {
             return false;
         }
         int procState = mActivityManagerInternal.getUidProcessState(uid);
diff --git a/services/core/java/com/android/server/locksettings/LockSettingsService.java b/services/core/java/com/android/server/locksettings/LockSettingsService.java
index f03317c..4ccc554 100644
--- a/services/core/java/com/android/server/locksettings/LockSettingsService.java
+++ b/services/core/java/com/android/server/locksettings/LockSettingsService.java
@@ -348,7 +348,6 @@
                 mLockSettingsService.deleteRepairModePersistentDataIfNeeded();
             } else if (phase == PHASE_BOOT_COMPLETED) {
                 mLockSettingsService.loadEscrowData();
-                mLockSettingsService.deleteRepairModePersistentDataIfNeeded();
             }
         }
 
diff --git a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
index 81c4dcd..634138c5 100644
--- a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
+++ b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
@@ -3951,7 +3951,9 @@
         if (wallpaper == null) {
             // common case, this is the first lookup post-boot of the system or
             // unified lock, so we bring up the saved state lazily now and recheck.
-            int whichLoad = (which == FLAG_LOCK) ? FLAG_LOCK : FLAG_SYSTEM;
+            // if we're loading the system wallpaper for the first time, also load the lock
+            // wallpaper to determine if the system wallpaper is system+lock or system only.
+            int whichLoad = (which == FLAG_LOCK) ? FLAG_LOCK : FLAG_SYSTEM | FLAG_LOCK;
             loadSettingsLocked(userId, false, whichLoad);
             wallpaper = whichSet.get(userId);
             if (wallpaper == null) {
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index 795f4fd..2c3f846 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -6509,7 +6509,7 @@
                          KeyChain.bindAsUser(mContext, userHandle)) {
                 IKeyChainService keyChain = keyChainConnection.getService();
                 return keyChain.setGrant(granteeUid, alias, hasGrant);
-            } catch (RemoteException e) {
+            } catch (RemoteException | AssertionError e) {
                 Slogf.e(LOG_TAG, "Setting grant for package.", e);
                 return false;
             }
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index c110912..6053a92 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -1049,6 +1049,14 @@
             "carrier_use_ims_first_for_emergency_bool";
 
     /**
+     * When {@code true}, this carrier will preferentially dial normal routed emergency calls over
+     * an in-service SIM if one is available.
+     * @hide
+     */
+    public static final String KEY_PREFER_IN_SERVICE_SIM_FOR_NORMAL_ROUTED_EMERGENCY_CALLS_BOOL =
+            "prefer_in_service_sim_for_normal_routed_emergency_calls_bool";
+
+    /**
      * When {@code true}, the determination of whether to place a call as an emergency call will be
      * based on the known {@link android.telephony.emergency.EmergencyNumber}s for the SIM on which
      * the call is being placed. In a dual SIM scenario, if Sim A has the emergency numbers
@@ -9855,6 +9863,8 @@
         sDefaults.putBoolean(KEY_CARRIER_IMS_GBA_REQUIRED_BOOL, false);
         sDefaults.putBoolean(KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL, false);
         sDefaults.putBoolean(KEY_CARRIER_USE_IMS_FIRST_FOR_EMERGENCY_BOOL, true);
+        sDefaults.putBoolean(KEY_PREFER_IN_SERVICE_SIM_FOR_NORMAL_ROUTED_EMERGENCY_CALLS_BOOL,
+                false);
         sDefaults.putBoolean(KEY_USE_ONLY_DIALED_SIM_ECC_LIST_BOOL, false);
         sDefaults.putString(KEY_CARRIER_NETWORK_SERVICE_WWAN_PACKAGE_OVERRIDE_STRING, "");
         sDefaults.putString(KEY_CARRIER_NETWORK_SERVICE_WLAN_PACKAGE_OVERRIDE_STRING, "");