diff --git a/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java b/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java
index 67b683ec643a3..2e13903814a5e 100644
--- a/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java
+++ b/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java
@@ -455,6 +455,7 @@ public class ScreenDecorations extends CoreStartable implements Tunable , Dumpab
                     }
                 }
 
+                boolean needToUpdateProviderViews = false;
                 final String newUniqueId = mDisplayInfo.uniqueId;
                 if (!Objects.equals(newUniqueId, mDisplayUniqueId)) {
                     mDisplayUniqueId = newUniqueId;
@@ -472,6 +473,37 @@ public class ScreenDecorations extends CoreStartable implements Tunable , Dumpab
                         setupDecorations();
                         return;
                     }
+
+                    if (mScreenDecorHwcLayer != null) {
+                        updateHwLayerRoundedCornerDrawable();
+                        updateHwLayerRoundedCornerExistAndSize();
+                    }
+                    needToUpdateProviderViews = true;
+                }
+
+                final float newRatio = getPhysicalPixelDisplaySizeRatio();
+                if (mRoundedCornerResDelegate.getPhysicalPixelDisplaySizeRatio() != newRatio) {
+                    mRoundedCornerResDelegate.setPhysicalPixelDisplaySizeRatio(newRatio);
+                    if (mScreenDecorHwcLayer != null) {
+                        updateHwLayerRoundedCornerExistAndSize();
+                    }
+                    needToUpdateProviderViews = true;
+                }
+
+                if (needToUpdateProviderViews) {
+                    updateOverlayProviderViews(null);
+                } else {
+                    updateOverlayProviderViews(new Integer[] {
+                            mFaceScanningViewId,
+                            R.id.display_cutout,
+                            R.id.display_cutout_left,
+                            R.id.display_cutout_right,
+                            R.id.display_cutout_bottom,
+                    });
+                }
+
+                if (mScreenDecorHwcLayer != null) {
+                    mScreenDecorHwcLayer.onDisplayChanged(newUniqueId);
                 }
             }
         };
@@ -1037,8 +1069,6 @@ public class ScreenDecorations extends CoreStartable implements Tunable , Dumpab
                 && (newRotation != mRotation || displayModeChanged(mDisplayMode, newMod))) {
             mRotation = newRotation;
             mDisplayMode = newMod;
-            mRoundedCornerResDelegate.setPhysicalPixelDisplaySizeRatio(
-                    getPhysicalPixelDisplaySizeRatio());
             if (mScreenDecorHwcLayer != null) {
                 mScreenDecorHwcLayer.pendingConfigChange = false;
                 mScreenDecorHwcLayer.updateRotation(mRotation);
diff --git a/packages/SystemUI/src/com/android/systemui/decor/RoundedCornerResDelegate.kt b/packages/SystemUI/src/com/android/systemui/decor/RoundedCornerResDelegate.kt
index 8b4aeefb6ed43..a252864383876 100644
--- a/packages/SystemUI/src/com/android/systemui/decor/RoundedCornerResDelegate.kt
+++ b/packages/SystemUI/src/com/android/systemui/decor/RoundedCornerResDelegate.kt
@@ -78,18 +78,23 @@ class RoundedCornerResDelegate(
         reloadMeasures()
     }
 
+    private fun reloadAll(newReloadToken: Int) {
+        if (reloadToken == newReloadToken) {
+            return
+        }
+        reloadToken = newReloadToken
+        reloadRes()
+        reloadMeasures()
+    }
+
     fun updateDisplayUniqueId(newDisplayUniqueId: String?, newReloadToken: Int?) {
         if (displayUniqueId != newDisplayUniqueId) {
             displayUniqueId = newDisplayUniqueId
             newReloadToken ?.let { reloadToken = it }
             reloadRes()
             reloadMeasures()
-        } else if (newReloadToken != null) {
-            if (reloadToken == newReloadToken) {
-                return
-            }
-            reloadToken = newReloadToken
-            reloadMeasures()
+        } else {
+            newReloadToken?.let { reloadAll(it) }
         }
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/ScreenDecorationsTest.java b/packages/SystemUI/tests/src/com/android/systemui/ScreenDecorationsTest.java
index 5a26d05d7b371..df10dfe9f1603 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/ScreenDecorationsTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/ScreenDecorationsTest.java
@@ -1005,13 +1005,18 @@ public class ScreenDecorationsTest extends SysuiTestCase {
         assertEquals(new Size(3, 3), resDelegate.getTopRoundedSize());
         assertEquals(new Size(4, 4), resDelegate.getBottomRoundedSize());
 
-        doReturn(2f).when(mScreenDecorations).getPhysicalPixelDisplaySizeRatio();
+        setupResources(20 /* radius */, 0 /* radiusTop */, 0 /* radiusBottom */,
+                getTestsDrawable(com.android.systemui.tests.R.drawable.rounded4px)
+                /* roundedTopDrawable */,
+                getTestsDrawable(com.android.systemui.tests.R.drawable.rounded5px)
+                /* roundedBottomDrawable */,
+                0 /* roundedPadding */, true /* privacyDot */, false /* faceScanning*/);
         mDisplayInfo.rotation = Surface.ROTATION_270;
 
         mScreenDecorations.onConfigurationChanged(null);
 
-        assertEquals(new Size(6, 6), resDelegate.getTopRoundedSize());
-        assertEquals(new Size(8, 8), resDelegate.getBottomRoundedSize());
+        assertEquals(new Size(4, 4), resDelegate.getTopRoundedSize());
+        assertEquals(new Size(5, 5), resDelegate.getBottomRoundedSize());
     }
 
     @Test
@@ -1287,6 +1292,51 @@ public class ScreenDecorationsTest extends SysuiTestCase {
         verifyFaceScanningViewExists(true);
     }
 
+    @Test
+    public void testOnDisplayChanged_hwcLayer() {
+        setupResources(0 /* radius */, 0 /* radiusTop */, 0 /* radiusBottom */,
+                null /* roundedTopDrawable */, null /* roundedBottomDrawable */,
+                0 /* roundedPadding */, false /* privacyDot */, false /* faceScanning */);
+        final DisplayDecorationSupport decorationSupport = new DisplayDecorationSupport();
+        decorationSupport.format = PixelFormat.R_8;
+        doReturn(decorationSupport).when(mDisplay).getDisplayDecorationSupport();
+
+        // top cutout
+        mMockCutoutList.add(new CutoutDecorProviderImpl(BOUNDS_POSITION_TOP));
+
+        mScreenDecorations.start();
+
+        final ScreenDecorHwcLayer hwcLayer = mScreenDecorations.mScreenDecorHwcLayer;
+        spyOn(hwcLayer);
+        doReturn(mDisplay).when(hwcLayer).getDisplay();
+
+        mScreenDecorations.mDisplayListener.onDisplayChanged(1);
+
+        verify(hwcLayer, times(1)).onDisplayChanged(any());
+    }
+
+    @Test
+    public void testOnDisplayChanged_nonHwcLayer() {
+        setupResources(0 /* radius */, 0 /* radiusTop */, 0 /* radiusBottom */,
+                null /* roundedTopDrawable */, null /* roundedBottomDrawable */,
+                0 /* roundedPadding */, false /* privacyDot */, false /* faceScanning */);
+
+        // top cutout
+        mMockCutoutList.add(new CutoutDecorProviderImpl(BOUNDS_POSITION_TOP));
+
+        mScreenDecorations.start();
+
+        final ScreenDecorations.DisplayCutoutView cutoutView = (ScreenDecorations.DisplayCutoutView)
+                mScreenDecorations.getOverlayView(R.id.display_cutout);
+        assertNotNull(cutoutView);
+        spyOn(cutoutView);
+        doReturn(mDisplay).when(cutoutView).getDisplay();
+
+        mScreenDecorations.mDisplayListener.onDisplayChanged(1);
+
+        verify(cutoutView, times(1)).onDisplayChanged(any());
+    }
+
     @Test
     public void testHasSameProvidersWithNullOverlays() {
         setupResources(0 /* radius */, 0 /* radiusTop */, 0 /* radiusBottom */,
diff --git a/packages/SystemUI/tests/src/com/android/systemui/decor/RoundedCornerResDelegateTest.kt b/packages/SystemUI/tests/src/com/android/systemui/decor/RoundedCornerResDelegateTest.kt
index 93a1868b72f51..f93336134900c 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/decor/RoundedCornerResDelegateTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/decor/RoundedCornerResDelegateTest.kt
@@ -24,11 +24,12 @@ import androidx.annotation.DrawableRes
 import androidx.test.filters.SmallTest
 import com.android.internal.R as InternalR
 import com.android.systemui.R as SystemUIR
-import com.android.systemui.SysuiTestCase
 import com.android.systemui.tests.R
+import com.android.systemui.SysuiTestCase
 import org.junit.Assert.assertEquals
 import org.junit.Before
 import org.junit.Test
+
 import org.junit.runner.RunWith
 import org.mockito.Mock
 import org.mockito.MockitoAnnotations
@@ -101,11 +102,14 @@ class RoundedCornerResDelegateTest : SysuiTestCase() {
         assertEquals(Size(3, 3), roundedCornerResDelegate.topRoundedSize)
         assertEquals(Size(4, 4), roundedCornerResDelegate.bottomRoundedSize)
 
-        roundedCornerResDelegate.physicalPixelDisplaySizeRatio = 2f
+        setupResources(radius = 100,
+                roundedTopDrawable = getTestsDrawable(R.drawable.rounded4px),
+                roundedBottomDrawable = getTestsDrawable(R.drawable.rounded5px))
+
         roundedCornerResDelegate.updateDisplayUniqueId(null, 1)
 
-        assertEquals(Size(6, 6), roundedCornerResDelegate.topRoundedSize)
-        assertEquals(Size(8, 8), roundedCornerResDelegate.bottomRoundedSize)
+        assertEquals(Size(4, 4), roundedCornerResDelegate.topRoundedSize)
+        assertEquals(Size(5, 5), roundedCornerResDelegate.bottomRoundedSize)
     }
 
     @Test