diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index 7c6c7ac..ce0dbb7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -687,6 +687,20 @@
         }
     }
 
+    /**
+     * Signal from SysUI indicating that a non-mirroring display was just connected to the
+     * primary device.
+     */
+    public void onDisplayReady(int displayId) {
+    }
+
+    /**
+     * Signal from SysUI indicating that a previously connected non-mirroring display was just
+     * removed from the primary device.
+     */
+    public void onDisplayRemoved(int displayId) {
+    }
+
     private void removeActivityCallbacksAndListeners() {
         if (mActivity != null) {
             mActivity.removeOnDeviceProfileChangeListener(mDebugActivityDeviceProfileChanged);
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index f7fb18b..15f320d 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -301,6 +301,22 @@
 
         @BinderThread
         @Override
+        public void onDisplayReady(int displayId) {
+            MAIN_EXECUTOR.execute(() -> executeForTouchInteractionService(
+                    tis -> executeForTaskbarManager(
+                            taskbarManager -> taskbarManager.onDisplayReady(displayId))));
+        }
+
+        @BinderThread
+        @Override
+        public void onDisplayRemoved(int displayId) {
+            MAIN_EXECUTOR.execute(() -> executeForTouchInteractionService(
+                    tis -> executeForTaskbarManager(
+                            taskbarManager -> taskbarManager.onDisplayRemoved(displayId))));
+        }
+
+        @BinderThread
+        @Override
         public void updateWallpaperVisibility(int displayId, boolean visible) {
             MAIN_EXECUTOR.execute(() -> executeForTouchInteractionService(
                     tis -> executeForTaskbarManager(