diff --git a/packages/SystemUI/src/com/android/systemui/shade/QuickSettingsController.java b/packages/SystemUI/src/com/android/systemui/shade/QuickSettingsController.java
index 4012736b8beb0..8e01b6dfae07c 100644
--- a/packages/SystemUI/src/com/android/systemui/shade/QuickSettingsController.java
+++ b/packages/SystemUI/src/com/android/systemui/shade/QuickSettingsController.java
@@ -90,6 +90,7 @@ import com.android.systemui.statusbar.phone.ScrimController;
 import com.android.systemui.statusbar.phone.StatusBarKeyguardViewManager;
 import com.android.systemui.statusbar.phone.StatusBarTouchableRegionManager;
 import com.android.systemui.statusbar.phone.dagger.CentralSurfacesComponent;
+import com.android.systemui.statusbar.policy.CastController;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
 import com.android.systemui.util.LargeScreenUtils;
 
@@ -135,6 +136,7 @@ public class QuickSettingsController {
     private final LockscreenGestureLogger mLockscreenGestureLogger;
     private final ShadeLogger mShadeLog;
     private final KeyguardFaceAuthInteractor mKeyguardFaceAuthInteractor;
+    private final CastController mCastController;
     private final FeatureFlags mFeatureFlags;
     private final InteractionJankMonitor mInteractionJankMonitor;
     private final ShadeRepository mShadeRepository;
@@ -324,7 +326,8 @@ public class QuickSettingsController {
             InteractionJankMonitor interactionJankMonitor,
             ShadeLogger shadeLog,
             KeyguardFaceAuthInteractor keyguardFaceAuthInteractor,
-            ShadeRepository shadeRepository
+            ShadeRepository shadeRepository,
+            CastController castController
     ) {
         mPanelViewControllerLazy = panelViewControllerLazy;
         mPanelView = panelView;
@@ -364,6 +367,7 @@ public class QuickSettingsController {
         mMetricsLogger = metricsLogger;
         mShadeLog = shadeLog;
         mKeyguardFaceAuthInteractor = keyguardFaceAuthInteractor;
+        mCastController = castController;
         mFeatureFlags = featureFlags;
         mInteractionJankMonitor = interactionJankMonitor;
         mShadeRepository = shadeRepository;
@@ -1188,7 +1192,9 @@ public class QuickSettingsController {
         mLastClipBounds.set(left, top, right, bottom);
         if (mIsFullWidth) {
             clipStatusView = qsVisible;
-            float screenCornerRadius = mRecordingController.isRecording() ? 0 : mScreenCornerRadius;
+            float screenCornerRadius =
+                    mRecordingController.isRecording() || mCastController.hasConnectedCastDevice()
+                            ? 0 : mScreenCornerRadius;
             radius = (int) MathUtils.lerp(screenCornerRadius, mScrimCornerRadius,
                     Math.min(top / (float) mScrimCornerRadius, 1f));
             mScrimController.setNotificationBottomRadius(radius);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastController.java
index 98cde2a049daf..abedd3220c934 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastController.java
@@ -28,6 +28,11 @@ public interface CastController extends CallbackController<Callback>, Dumpable {
     void startCasting(CastDevice device);
     void stopCasting(CastDevice device);
 
+    /**
+     * @return whether we have a connected device.
+     */
+    boolean hasConnectedCastDevice();
+
     public interface Callback {
         void onCastDevicesChanged();
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastControllerImpl.java
index 7290a1a820708..f7b601b9d2840 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/CastControllerImpl.java
@@ -217,6 +217,12 @@ public class CastControllerImpl implements CastController {
         }
     }
 
+    @Override
+    public boolean hasConnectedCastDevice() {
+        return getCastDevices().stream().anyMatch(
+                castDevice -> castDevice.state == CastDevice.STATE_CONNECTED);
+    }
+
     private void setProjection(MediaProjectionInfo projection, boolean started) {
         boolean changed = false;
         final MediaProjectionInfo oldProjection = mProjection;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationPanelViewControllerBaseTest.java b/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationPanelViewControllerBaseTest.java
index 1edc63c4417e2..46f29de36a28f 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationPanelViewControllerBaseTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationPanelViewControllerBaseTest.java
@@ -158,6 +158,7 @@ import com.android.systemui.statusbar.phone.StatusBarKeyguardViewManager;
 import com.android.systemui.statusbar.phone.StatusBarTouchableRegionManager;
 import com.android.systemui.statusbar.phone.TapAgainViewController;
 import com.android.systemui.statusbar.phone.UnlockedScreenOffAnimationController;
+import com.android.systemui.statusbar.policy.CastController;
 import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.KeyguardQsUserSwitchController;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
@@ -306,6 +307,7 @@ public class NotificationPanelViewControllerBaseTest extends SysuiTestCase {
     @Mock protected ActivityStarter mActivityStarter;
     @Mock protected KeyguardFaceAuthInteractor mKeyguardFaceAuthInteractor;
     @Mock protected ShadeRepository mShadeRepository;
+    @Mock private CastController mCastController;
 
     protected final int mMaxUdfpsBurnInOffsetY = 5;
     protected KeyguardBottomAreaInteractor mKeyguardBottomAreaInteractor;
@@ -675,7 +677,8 @@ public class NotificationPanelViewControllerBaseTest extends SysuiTestCase {
                 mInteractionJankMonitor,
                 mShadeLog,
                 mKeyguardFaceAuthInteractor,
-                mShadeRepository
+                mShadeRepository,
+                mCastController
         );
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/shade/QuickSettingsControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/shade/QuickSettingsControllerTest.java
index 8a9161e6d46db..f514b109c3839 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/shade/QuickSettingsControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/shade/QuickSettingsControllerTest.java
@@ -87,6 +87,7 @@ import com.android.systemui.statusbar.phone.LockscreenGestureLogger;
 import com.android.systemui.statusbar.phone.ScrimController;
 import com.android.systemui.statusbar.phone.StatusBarKeyguardViewManager;
 import com.android.systemui.statusbar.phone.StatusBarTouchableRegionManager;
+import com.android.systemui.statusbar.policy.CastController;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
 
 import dagger.Lazy;
@@ -155,6 +156,7 @@ public class QuickSettingsControllerTest extends SysuiTestCase {
     @Mock private ShadeLogger mShadeLogger;
     @Mock private DumpManager mDumpManager;
     @Mock private UiEventLogger mUiEventLogger;
+    @Mock private CastController mCastController;
 
     private SysuiStatusBarStateController mStatusBarStateController;
 
@@ -243,7 +245,8 @@ public class QuickSettingsControllerTest extends SysuiTestCase {
                 mInteractionJankMonitor,
                 mShadeLogger,
                 mock(KeyguardFaceAuthInteractor.class),
-                mock(ShadeRepository.class)
+                mock(ShadeRepository.class),
+                mCastController
         );
 
         mFragmentListener = mQsController.getQsFragmentListener();
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/CastControllerImplTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/CastControllerImplTest.java
index db50163ce6a73..b8e4306a319dc 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/CastControllerImplTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/CastControllerImplTest.java
@@ -1,6 +1,7 @@
 package com.android.systemui.statusbar.policy;
 
 
+import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
@@ -125,4 +126,20 @@ public class CastControllerImplTest extends SysuiTestCase {
             fail("Concurrent modification exception");
         }
     }
+
+    @Test
+    public void hasConnectedCastDevice_connected() {
+        CastController.CastDevice castDevice = new CastController.CastDevice();
+        castDevice.state = CastController.CastDevice.STATE_CONNECTED;
+        mController.startCasting(castDevice);
+        assertTrue(mController.hasConnectedCastDevice());
+    }
+
+    @Test
+    public void hasConnectedCastDevice_notConnected() {
+        CastController.CastDevice castDevice = new CastController.CastDevice();
+        castDevice.state = CastController.CastDevice.STATE_CONNECTING;
+        mController.startCasting(castDevice);
+        assertTrue(mController.hasConnectedCastDevice());
+    }
 }
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/utils/leaks/FakeCastController.java b/packages/SystemUI/tests/utils/src/com/android/systemui/utils/leaks/FakeCastController.java
index f6b24da9b821b..84ace7cc9540c 100644
--- a/packages/SystemUI/tests/utils/src/com/android/systemui/utils/leaks/FakeCastController.java
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/utils/leaks/FakeCastController.java
@@ -51,4 +51,9 @@ public class FakeCastController extends BaseLeakChecker<Callback> implements Cas
     public void stopCasting(CastDevice device) {
 
     }
+
+    @Override
+    public boolean hasConnectedCastDevice() {
+        return false;
+    }
 }