diff --git a/core/java/com/android/internal/statusbar/IStatusBarService.aidl b/core/java/com/android/internal/statusbar/IStatusBarService.aidl
index 5e610ed32d006..40c009f3a4771 100644
--- a/core/java/com/android/internal/statusbar/IStatusBarService.aidl
+++ b/core/java/com/android/internal/statusbar/IStatusBarService.aidl
@@ -40,8 +40,10 @@ interface IStatusBarService
     // You need the STATUS_BAR_SERVICE permission
     void registerStatusBar(IStatusBar callbacks, out StatusBarIconList iconList,
             out int[] switches, out List<IBinder> binders);
-    void onPanelRevealed();
+    void onPanelRevealed(boolean clearNotificationEffects);
     void onPanelHidden();
+    // Mark current notifications as "seen" and stop ringing, vibrating, blinking.
+    void clearNotificationEffects();
     void onNotificationClick(String key);
     void onNotificationActionClick(String key, int actionIndex);
     void onNotificationError(String pkg, String tag, int id,
diff --git a/packages/SystemUI/src/com/android/systemui/doze/DozeHost.java b/packages/SystemUI/src/com/android/systemui/doze/DozeHost.java
index 6ea5c70c95f88..89a2c7447f847 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/DozeHost.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/DozeHost.java
@@ -28,6 +28,7 @@ public interface DozeHost {
     void pulseWhileDozing(@NonNull PulseCallback callback, int reason);
     void stopDozing();
     boolean isPowerSaveActive();
+    boolean isNotificationLightOn();
 
     public interface Callback {
         void onNewNotifications();
@@ -40,4 +41,4 @@ public interface DozeHost {
         void onPulseStarted();
         void onPulseFinished();
     }
-}
\ No newline at end of file
+}
diff --git a/packages/SystemUI/src/com/android/systemui/doze/DozeService.java b/packages/SystemUI/src/com/android/systemui/doze/DozeService.java
index 1e29476178760..2341144da159f 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/DozeService.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/DozeService.java
@@ -56,6 +56,17 @@ public class DozeService extends DreamService {
     private static final String NOTIFICATION_PULSE_ACTION = ACTION_BASE + ".notification_pulse";
     private static final String EXTRA_INSTANCE = "instance";
 
+    /**
+     * Earliest time we pulse due to a notification light after the service started.
+     *
+     * <p>Incoming notification light events during the blackout period are
+     * delayed to the earliest time defined by this constant.</p>
+     *
+     * <p>This delay avoids a pulse immediately after screen off, at which
+     * point the notification light is re-enabled again by NoMan.</p>
+     */
+    private static final int EARLIEST_LIGHT_PULSE_AFTER_START_MS = 10 * 1000;
+
     private final String mTag = String.format(TAG + ".%08x", hashCode());
     private final Context mContext = this;
     private final DozeParameters mDozeParameters = new DozeParameters(mContext);
@@ -77,6 +88,7 @@ public class DozeService extends DreamService {
     private boolean mPowerSaveActive;
     private boolean mCarMode;
     private long mNotificationPulseTime;
+    private long mEarliestPulseDueToLight;
     private int mScheduleResetsRemaining;
 
     public DozeService() {
@@ -161,8 +173,9 @@ public class DozeService extends DreamService {
         }
 
         mDreaming = true;
-        listenForPulseSignals(true);
         rescheduleNotificationPulse(false /*predicate*/);  // cancel any pending pulse alarms
+        mEarliestPulseDueToLight = System.currentTimeMillis() + EARLIEST_LIGHT_PULSE_AFTER_START_MS;
+        listenForPulseSignals(true);
 
         // Ask the host to get things ready to start dozing.
         // Once ready, we call startDozing() at which point the CPU may suspend
@@ -298,6 +311,12 @@ public class DozeService extends DreamService {
         if (listen) {
             resetNotificationResets();
             mHost.addCallback(mHostCallback);
+
+            // Continue to pulse for existing LEDs.
+            mNotificationLightOn = mHost.isNotificationLightOn();
+            if (mNotificationLightOn) {
+                updateNotificationPulseDueToLight();
+            }
         } else {
             mHost.removeCallback(mHostCallback);
         }
@@ -308,21 +327,26 @@ public class DozeService extends DreamService {
         mScheduleResetsRemaining = mDozeParameters.getPulseScheduleResets();
     }
 
-    private void updateNotificationPulse() {
-        if (DEBUG) Log.d(mTag, "updateNotificationPulse");
+    private void updateNotificationPulseDueToLight() {
+        long timeMs = System.currentTimeMillis();
+        timeMs = Math.max(timeMs, mEarliestPulseDueToLight);
+        updateNotificationPulse(timeMs);
+    }
+
+    private void updateNotificationPulse(long notificationTimeMs) {
+        if (DEBUG) Log.d(mTag, "updateNotificationPulse notificationTimeMs=" + notificationTimeMs);
         if (!mDozeParameters.getPulseOnNotifications()) return;
         if (mScheduleResetsRemaining <= 0) {
             if (DEBUG) Log.d(mTag, "No more schedule resets remaining");
             return;
         }
-        final long now = System.currentTimeMillis();
-        if ((now - mNotificationPulseTime) < mDozeParameters.getPulseDuration()) {
+        if ((notificationTimeMs - mNotificationPulseTime) < mDozeParameters.getPulseDuration()) {
             if (DEBUG) Log.d(mTag, "Recently updated, not resetting schedule");
             return;
         }
         mScheduleResetsRemaining--;
         if (DEBUG) Log.d(mTag, "mScheduleResetsRemaining = " + mScheduleResetsRemaining);
-        mNotificationPulseTime = now;
+        mNotificationPulseTime = notificationTimeMs;
         rescheduleNotificationPulse(true /*predicate*/);
     }
 
@@ -404,14 +428,14 @@ public class DozeService extends DreamService {
     private final DozeHost.Callback mHostCallback = new DozeHost.Callback() {
         @Override
         public void onNewNotifications() {
-            if (DEBUG) Log.d(mTag, "onNewNotifications");
+            if (DEBUG) Log.d(mTag, "onNewNotifications (noop)");
             // noop for now
         }
 
         @Override
         public void onBuzzBeepBlinked() {
             if (DEBUG) Log.d(mTag, "onBuzzBeepBlinked");
-            updateNotificationPulse();
+            updateNotificationPulse(System.currentTimeMillis());
         }
 
         @Override
@@ -420,7 +444,7 @@ public class DozeService extends DreamService {
             if (mNotificationLightOn == on) return;
             mNotificationLightOn = on;
             if (mNotificationLightOn) {
-                updateNotificationPulse();
+                updateNotificationPulseDueToLight();
             }
         }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
index 581b30f8aae27..57ac4b0dad506 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
@@ -1648,7 +1648,11 @@ public abstract class BaseStatusBar extends SystemUI implements
     protected void handleVisibleToUserChanged(boolean visibleToUser) {
         try {
             if (visibleToUser) {
-                mBarService.onPanelRevealed();
+                // Only stop blinking, vibrating, ringing when the user went into the shade
+                // manually (SHADE or SHADE_LOCKED).
+                boolean clearNotificationEffects =
+                        (mState == StatusBarState.SHADE || mState == StatusBarState.SHADE_LOCKED);
+                mBarService.onPanelRevealed(clearNotificationEffects);
             } else {
                 mBarService.onPanelHidden();
             }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index 02807a10570b4..7a3b5e4784152 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -3795,6 +3795,16 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
      * @param state The {@link StatusBarState} to set.
      */
     public void setBarState(int state) {
+        // If we're visible and switched to SHADE_LOCKED (the user dragged down
+        // on the lockscreen), clear notification LED, vibration, ringing.
+        // Other transitions are covered in handleVisibleToUserChanged().
+        if (mVisible && mState != state && state == StatusBarState.SHADE_LOCKED) {
+            try {
+                mBarService.clearNotificationEffects();
+            } catch (RemoteException e) {
+                // Ignore.
+            }
+        }
         mState = state;
         mStatusBarWindowManager.setStatusBarState(state);
     }
@@ -4126,6 +4136,9 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         private final ArrayList<Callback> mCallbacks = new ArrayList<Callback>();
         private final H mHandler = new H();
 
+        // Keeps the last reported state by fireNotificationLight.
+        private boolean mNotificationLightOn;
+
         @Override
         public String toString() {
             return "PSB.DozeServiceHost[mCallbacks=" + mCallbacks.size() + "]";
@@ -4144,6 +4157,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         }
 
         public void fireNotificationLight(boolean on) {
+            mNotificationLightOn = on;
             for (Callback callback : mCallbacks) {
                 callback.onNotificationLight(on);
             }
@@ -4185,6 +4199,11 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
             return mBatteryController != null && mBatteryController.isPowerSave();
         }
 
+        @Override
+        public boolean isNotificationLightOn() {
+            return mNotificationLightOn;
+        }
+
         private void handleStartDozing(@NonNull Runnable ready) {
             if (!mDozing) {
                 mDozing = true;
diff --git a/services/core/java/com/android/server/notification/NotificationDelegate.java b/services/core/java/com/android/server/notification/NotificationDelegate.java
index 24fc45508bc1b..fdb443e1753d9 100644
--- a/services/core/java/com/android/server/notification/NotificationDelegate.java
+++ b/services/core/java/com/android/server/notification/NotificationDelegate.java
@@ -26,8 +26,9 @@ public interface NotificationDelegate {
     void onNotificationError(int callingUid, int callingPid,
             String pkg, String tag, int id,
             int uid, int initialPid, String message, int userId);
-    void onPanelRevealed();
+    void onPanelRevealed(boolean clearEffects);
     void onPanelHidden();
+    void clearEffects();
     void onNotificationVisibilityChanged(
             String[] newlyVisibleKeys, String[] noLongerVisibleKeys);
     void onNotificationExpansionChanged(String key, boolean userAction, boolean expanded);
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index c851868ac85d8..323b34b49ef68 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -123,7 +123,7 @@ import java.util.Objects;
 /** {@hide} */
 public class NotificationManagerService extends SystemService {
     static final String TAG = "NotificationService";
-    static final boolean DBG = false;
+    static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
 
     static final int MAX_PACKAGE_NOTIFICATIONS = 50;
 
@@ -577,9 +577,23 @@ public class NotificationManagerService extends SystemService {
         }
 
         @Override
-        public void onPanelRevealed() {
+        public void onPanelRevealed(boolean clearEffects) {
             EventLogTags.writeNotificationPanelRevealed();
+            if (clearEffects) {
+                clearEffects();
+            }
+        }
+
+        @Override
+        public void onPanelHidden() {
+            EventLogTags.writeNotificationPanelHidden();
+        }
+
+        @Override
+        public void clearEffects() {
             synchronized (mNotificationList) {
+                if (DBG) Slog.d(TAG, "clearEffects");
+
                 // sound
                 mSoundNotification = null;
 
@@ -610,11 +624,6 @@ public class NotificationManagerService extends SystemService {
             }
         }
 
-        @Override
-        public void onPanelHidden() {
-            EventLogTags.writeNotificationPanelHidden();
-        }
-
         @Override
         public void onNotificationError(int callingUid, int callingPid, String pkg, String tag, int id,
                 int uid, int initialPid, String message, int userId) {
@@ -753,8 +762,10 @@ public class NotificationManagerService extends SystemService {
                 // Keep track of screen on/off state, but do not turn off the notification light
                 // until user passes through the lock screen or views the notification.
                 mScreenOn = true;
+                updateNotificationPulse();
             } else if (action.equals(Intent.ACTION_SCREEN_OFF)) {
                 mScreenOn = false;
+                updateNotificationPulse();
             } else if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)) {
                 mInCall = TelephonyManager.EXTRA_STATE_OFFHOOK
                         .equals(intent.getStringExtra(TelephonyManager.EXTRA_STATE));
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
index 9828cd4a30d6f..cf2ed07425f66 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
@@ -26,7 +26,6 @@ import android.content.Context;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.util.Slog;
-import android.view.WindowManager;
 
 import com.android.internal.statusbar.IStatusBar;
 import com.android.internal.statusbar.IStatusBarService;
@@ -495,16 +494,26 @@ public class StatusBarManagerService extends IStatusBarService.Stub {
     }
 
     /**
-     * The status bar service should call this each time the user brings the panel from
-     * invisible to visible in order to clear the notification light.
+     * @param clearNotificationEffects whether to consider notifications as "shown" and stop
+     *     LED, vibration, and ringing
      */
     @Override
-    public void onPanelRevealed() {
+    public void onPanelRevealed(boolean clearNotificationEffects) {
         enforceStatusBarService();
         long identity = Binder.clearCallingIdentity();
         try {
-            // tell the notification manager to turn off the lights.
-            mNotificationDelegate.onPanelRevealed();
+            mNotificationDelegate.onPanelRevealed(clearNotificationEffects);
+        } finally {
+            Binder.restoreCallingIdentity(identity);
+        }
+    }
+
+    @Override
+    public void clearNotificationEffects() throws RemoteException {
+        enforceStatusBarService();
+        long identity = Binder.clearCallingIdentity();
+        try {
+            mNotificationDelegate.clearEffects();
         } finally {
             Binder.restoreCallingIdentity(identity);
         }