diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
index 5cb3c1f..8368143 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
@@ -165,7 +165,7 @@
             openedAmount = Math.min(1.0f, openedAmount);
             mShelfState.openedAmount = openedAmount;
             mShelfState.clipTopAmount = 0;
-            mShelfState.alpha = mAmbientState.isPulsing() ? 0 : 1;
+            mShelfState.alpha = mAmbientState.hasPulsingNotifications() ? 0 : 1;
             mShelfState.belowSpeedBump = mAmbientState.getSpeedBumpIndex() == 0;
             mShelfState.shadowAlpha = 1.0f;
             mShelfState.hideSensitive = false;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
index 4b1d7d7..b1d82b1 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
@@ -55,6 +55,7 @@
     private long mDownTime;
     private float mMinExpandHeight;
     private LockscreenGestureLogger mLockscreenGestureLogger = new LockscreenGestureLogger();
+    private boolean mPanelUpdateWhenAnimatorEnds;
 
     private final void logf(String fmt, Object... args) {
         Log.v(TAG, (mViewName != null ? (mViewName + ": ") : "") + String.format(fmt, args));
@@ -507,7 +508,7 @@
 
     @Override
     public boolean onInterceptTouchEvent(MotionEvent event) {
-        if (mInstantExpanding || !mNotificationsDragEnabled
+        if (mInstantExpanding || !mNotificationsDragEnabled || mTouchDisabled
                 || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) {
             return false;
         }
@@ -758,14 +759,14 @@
                 if (clearAllExpandHack && !mCancelled) {
                     setExpandedHeightInternal(getMaxPanelHeight());
                 }
-                mHeightAnimator = null;
+                setAnimator(null);
                 if (!mCancelled) {
                     notifyExpandingFinished();
                 }
                 notifyBarPanelExpansionChanged();
             }
         });
-        mHeightAnimator = animator;
+        setAnimator(animator);
         animator.start();
     }
 
@@ -802,15 +803,28 @@
     protected void requestPanelHeightUpdate() {
         float currentMaxPanelHeight = getMaxPanelHeight();
 
-        // If the user isn't actively poking us, let's update the height
-        if ((!mTracking || isTrackingBlocked())
-                && mHeightAnimator == null
-                && !isFullyCollapsed()
-                && currentMaxPanelHeight != mExpandedHeight
-                && mPeekAnimator == null
-                && !mPeekTouching) {
-            setExpandedHeight(currentMaxPanelHeight);
+        if (isFullyCollapsed()) {
+            return;
         }
+
+        if (currentMaxPanelHeight == mExpandedHeight) {
+            return;
+        }
+
+        if (mPeekAnimator != null || mPeekTouching) {
+            return;
+        }
+
+        if (mTracking && !isTrackingBlocked()) {
+            return;
+        }
+
+        if (mHeightAnimator != null) {
+            mPanelUpdateWhenAnimatorEnds = true;
+            return;
+        }
+
+        setExpandedHeight(currentMaxPanelHeight);
     }
 
     public void setExpandedHeightInternal(float h) {
@@ -1062,7 +1076,7 @@
             @Override
             public void onAnimationEnd(Animator animation) {
                 if (mCancelled) {
-                    mHeightAnimator = null;
+                    setAnimator(null);
                     onAnimationFinished.run();
                 } else {
                     startUnlockHintAnimationPhase2(onAnimationFinished);
@@ -1070,7 +1084,7 @@
             }
         });
         animator.start();
-        mHeightAnimator = animator;
+        setAnimator(animator);
         mKeyguardBottomArea.getIndicationArea().animate()
                 .translationY(-mHintDistance)
                 .setDuration(250)
@@ -1088,6 +1102,14 @@
                 .start();
     }
 
+    private void setAnimator(ValueAnimator animator) {
+        mHeightAnimator = animator;
+        if (animator == null && mPanelUpdateWhenAnimatorEnds) {
+            mPanelUpdateWhenAnimatorEnds = false;
+            requestPanelHeightUpdate();
+        }
+    }
+
     /**
      * Phase 2: Bounce down.
      */
@@ -1098,13 +1120,13 @@
         animator.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationEnd(Animator animation) {
-                mHeightAnimator = null;
+                setAnimator(null);
                 onAnimationFinished.run();
                 notifyBarPanelExpansionChanged();
             }
         });
         animator.start();
-        mHeightAnimator = animator;
+        setAnimator(animator);
     }
 
     private ValueAnimator createHeightAnimator(float targetHeight) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index 07ab6876..1df943d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -4938,7 +4938,6 @@
             where.getLocationInWindow(mTmpInt2);
             mWakeUpTouchLocation = new PointF(mTmpInt2[0] + where.getWidth() / 2,
                     mTmpInt2[1] + where.getHeight() / 2);
-            mNotificationPanel.setTouchDisabled(false);
             mStatusBarKeyguardViewManager.notifyDeviceWakeUpRequested();
             mFalsingManager.onScreenOnFromTouch();
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
index f050be4..236e008 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
@@ -277,7 +277,7 @@
 
     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
-        if (mService.isDozing() && !mService.isPulsing()) {
+        if (mService.isDozing() && !mStackScrollLayout.hasPulsingNotifications()) {
             // Capture all touch events in always-on.
             return true;
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
index e409b9c..41ef781 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
@@ -59,7 +59,7 @@
     private boolean mPanelTracking;
     private boolean mExpansionChanging;
     private boolean mPanelFullWidth;
-    private boolean mPulsing;
+    private boolean mHasPulsingNotifications;
     private boolean mUnlockHintRunning;
 
     public AmbientState(Context context) {
@@ -287,12 +287,12 @@
         mPanelTracking = panelTracking;
     }
 
-    public boolean isPulsing() {
-        return mPulsing;
+    public boolean hasPulsingNotifications() {
+        return mHasPulsingNotifications;
     }
 
-    public void setPulsing(boolean pulsing) {
-        mPulsing = pulsing;
+    public void setHasPulsingNotifications(boolean hasPulsing) {
+        mHasPulsingNotifications = hasPulsing;
     }
 
     public boolean isPanelTracking() {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
index 431f646..aeaa5af 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
@@ -53,7 +53,6 @@
 import android.view.WindowInsets;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
-import android.view.animation.Animation;
 import android.view.animation.AnimationUtils;
 import android.view.animation.Interpolator;
 import android.widget.OverScroller;
@@ -1941,7 +1940,7 @@
         int numShownItems = 0;
         boolean finish = false;
         int maxDisplayedNotifications = mAmbientState.isDark()
-                ? (isPulsing() ? 1 : 0)
+                ? (hasPulsingNotifications() ? 1 : 0)
                 : mMaxDisplayedNotifications;
 
         for (int i = 0; i < getChildCount(); i++) {
@@ -1950,7 +1949,8 @@
                     && !expandableView.hasNoContentHeight()) {
                 boolean limitReached = maxDisplayedNotifications != -1
                         && numShownItems >= maxDisplayedNotifications;
-                boolean notificationOnAmbientThatIsNotPulsing = isPulsing()
+                boolean notificationOnAmbientThatIsNotPulsing = mAmbientState.isDark()
+                        && hasPulsingNotifications()
                         && expandableView instanceof ExpandableNotificationRow
                         && !isPulsing(((ExpandableNotificationRow) expandableView).getEntry());
                 if (limitReached || notificationOnAmbientThatIsNotPulsing) {
@@ -2008,7 +2008,7 @@
         return false;
     }
 
-    private boolean isPulsing() {
+    public boolean hasPulsingNotifications() {
         return mPulsing != null;
     }
 
@@ -2837,7 +2837,7 @@
     }
 
     private void updateNotificationAnimationStates() {
-        boolean running = mAnimationsEnabled || isPulsing();
+        boolean running = mAnimationsEnabled || hasPulsingNotifications();
         mShelf.setAnimationsEnabled(running);
         int childCount = getChildCount();
         for (int i = 0; i < childCount; i++) {
@@ -2848,7 +2848,7 @@
     }
 
     private void updateAnimationState(View child) {
-        updateAnimationState((mAnimationsEnabled || isPulsing())
+        updateAnimationState((mAnimationsEnabled || hasPulsingNotifications())
                 && (mIsExpanded || isPinnedHeadsUp(child)), child);
     }
 
@@ -4117,7 +4117,7 @@
             return;
         }
         mPulsing = pulsing;
-        mAmbientState.setPulsing(isPulsing());
+        mAmbientState.setHasPulsingNotifications(hasPulsingNotifications());
         updateNotificationAnimationStates();
         updateContentHeight();
         notifyHeightChangeListener(mShelf);