diff --git a/packages/SystemUI/src/com/android/systemui/DisplayCutoutBaseView.kt b/packages/SystemUI/src/com/android/systemui/DisplayCutoutBaseView.kt
index 56046d9c057d8..ccb5b1146a1cd 100644
--- a/packages/SystemUI/src/com/android/systemui/DisplayCutoutBaseView.kt
+++ b/packages/SystemUI/src/com/android/systemui/DisplayCutoutBaseView.kt
@@ -79,6 +79,8 @@ open class DisplayCutoutBaseView : View, RegionInterceptableView {
     override fun onAttachedToWindow() {
         super.onAttachedToWindow()
         updateCutout()
+        updateProtectionBoundingPath()
+        onUpdate()
     }
 
     fun onDisplayChanged(displayId: Int) {
@@ -93,6 +95,7 @@ open class DisplayCutoutBaseView : View, RegionInterceptableView {
         if (displayId == display.displayId) {
             updateCutout()
             updateProtectionBoundingPath()
+            onUpdate()
         }
     }
 
@@ -100,8 +103,13 @@ open class DisplayCutoutBaseView : View, RegionInterceptableView {
         displayRotation = rotation
         updateCutout()
         updateProtectionBoundingPath()
+        onUpdate()
     }
 
+    // Called after the cutout and protection bounding path change. Subclasses
+    // should make any changes that need to happen based on the change.
+    open fun onUpdate() = Unit
+
     @VisibleForTesting(otherwise = VisibleForTesting.PROTECTED)
     public override fun onDraw(canvas: Canvas) {
         super.onDraw(canvas)
diff --git a/packages/SystemUI/src/com/android/systemui/ScreenDecorHwcLayer.kt b/packages/SystemUI/src/com/android/systemui/ScreenDecorHwcLayer.kt
index ae4c365ff2708..011881354e35d 100644
--- a/packages/SystemUI/src/com/android/systemui/ScreenDecorHwcLayer.kt
+++ b/packages/SystemUI/src/com/android/systemui/ScreenDecorHwcLayer.kt
@@ -114,6 +114,10 @@ class ScreenDecorHwcLayer(context: Context, displayDecorationSupport: DisplayDec
         }
     }
 
+    override fun onUpdate() {
+        parent.requestTransparentRegion(this)
+    }
+
     override fun onDraw(canvas: Canvas) {
         // If updating onDraw, also update gatherTransparentRegion
         if (useInvertedAlphaColor) {