diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index 21d300aba1b9e..7bacc427feb83 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -356,6 +356,8 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
     ActivityManagerInternal mAmInternal;
     UriGrantsManagerInternal mUgmInternal;
     private PackageManagerInternal mPmInternal;
+    /** The cached sys ui service component name from package manager. */
+    private ComponentName mSysUiServiceComponent;
     private PermissionPolicyInternal mPermissionPolicyInternal;
     @VisibleForTesting
     final ActivityTaskManagerInternal mInternal;
@@ -5869,6 +5871,14 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
         return mPmInternal;
     }
 
+    ComponentName getSysUiServiceComponentLocked() {
+        if (mSysUiServiceComponent == null) {
+            final PackageManagerInternal pm = getPackageManagerInternalLocked();
+            mSysUiServiceComponent = pm.getSystemUiServiceComponent();
+        }
+        return mSysUiServiceComponent;
+    }
+
     PermissionPolicyInternal getPermissionPolicyInternal() {
         if (mPermissionPolicyInternal == null) {
             mPermissionPolicyInternal = LocalServices.getService(PermissionPolicyInternal.class);
diff --git a/services/core/java/com/android/server/wm/WindowProcessController.java b/services/core/java/com/android/server/wm/WindowProcessController.java
index 833bb83acb309..32eb932ea0ed4 100644
--- a/services/core/java/com/android/server/wm/WindowProcessController.java
+++ b/services/core/java/com/android/server/wm/WindowProcessController.java
@@ -53,6 +53,7 @@ import android.content.pm.ApplicationInfo;
 import android.content.res.Configuration;
 import android.os.Build;
 import android.os.Message;
+import android.os.Process;
 import android.os.RemoteException;
 import android.os.SystemClock;
 import android.util.ArraySet;
@@ -200,6 +201,9 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio
     /** Whether our process is currently running a {@link IRemoteAnimationRunner} */
     private boolean mRunningRemoteAnimation;
 
+    /** Whether this process is owned by the System UI package. */
+    final boolean mIsSysUiPackage;
+
     public WindowProcessController(@NonNull ActivityTaskManagerService atm, ApplicationInfo info,
             String name, int uid, int userId, Object owner, WindowProcessListener listener) {
         mInfo = info;
@@ -210,6 +214,10 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio
         mListener = listener;
         mAtm = atm;
         mDisplayId = INVALID_DISPLAY;
+
+        mIsSysUiPackage = info.packageName.equals(
+                mAtm.getSysUiServiceComponentLocked().getPackageName());
+
         onConfigurationChanged(atm.getGlobalConfiguration());
     }
 
@@ -1077,6 +1085,12 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio
      * always track the configuration of the non-finishing activity last added to the process.
      */
     private void updateActivityConfigurationListener() {
+        if (mIsSysUiPackage || mUid == Process.SYSTEM_UID) {
+            // This is a system owned process and should not use an activity config.
+            // TODO(b/151161907): Remove after support for display-independent (raw) SysUi configs.
+            return;
+        }
+
         for (int i = mActivities.size() - 1; i >= 0; i--) {
             final ActivityRecord activityRecord = mActivities.get(i);
             if (!activityRecord.finishing && !activityRecord.containsListener(this)) {
diff --git a/services/tests/mockingservicestests/src/com/android/server/am/ApplicationExitInfoTest.java b/services/tests/mockingservicestests/src/com/android/server/am/ApplicationExitInfoTest.java
index 95f4e832cd2d6..c45ee7b4d8026 100644
--- a/services/tests/mockingservicestests/src/com/android/server/am/ApplicationExitInfoTest.java
+++ b/services/tests/mockingservicestests/src/com/android/server/am/ApplicationExitInfoTest.java
@@ -55,6 +55,7 @@ import android.system.OsConstants;
 import android.text.TextUtils;
 import android.util.Pair;
 
+import com.android.server.LocalServices;
 import com.android.server.ServiceThread;
 import com.android.server.appop.AppOpsService;
 import com.android.server.wm.ActivityTaskManagerService;
@@ -125,6 +126,8 @@ public class ApplicationExitInfoTest {
         mAms.mActivityTaskManager.initialize(null, null, mContext.getMainLooper());
         mAms.mAtmInternal = spy(mAms.mActivityTaskManager.getAtmInternal());
         mAms.mPackageManagerInt = mPackageManagerInt;
+        doReturn(new ComponentName("", "")).when(mPackageManagerInt).getSystemUiServiceComponent();
+        LocalServices.addService(PackageManagerInternal.class, mPackageManagerInt);
     }
 
     @After
diff --git a/services/tests/mockingservicestests/src/com/android/server/am/MockingOomAdjusterTests.java b/services/tests/mockingservicestests/src/com/android/server/am/MockingOomAdjusterTests.java
index fc2ae40daca0f..d764a790172cc 100644
--- a/services/tests/mockingservicestests/src/com/android/server/am/MockingOomAdjusterTests.java
+++ b/services/tests/mockingservicestests/src/com/android/server/am/MockingOomAdjusterTests.java
@@ -75,8 +75,10 @@ import static org.mockito.Mockito.spy;
 
 import android.app.IApplicationThread;
 import android.app.IServiceConnection;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManagerInternal;
 import android.content.pm.ServiceInfo;
 import android.os.Build;
 import android.os.IBinder;
@@ -87,6 +89,7 @@ import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.SparseArray;
 
+import com.android.server.LocalServices;
 import com.android.server.wm.ActivityServiceConnectionsHolder;
 import com.android.server.wm.ActivityTaskManagerService;
 import com.android.server.wm.WindowProcessController;
@@ -127,6 +130,7 @@ public class MockingOomAdjusterTests {
     private static final String MOCKAPP5_PROCESSNAME = "test #5";
     private static final String MOCKAPP5_PACKAGENAME = "com.android.test.test5";
     private static Context sContext;
+    private static PackageManagerInternal sPackageManagerInternal;
     private static ActivityManagerService sService;
 
     @BeforeClass
@@ -134,9 +138,15 @@ public class MockingOomAdjusterTests {
         sContext = getInstrumentation().getTargetContext();
         System.setProperty("dexmaker.share_classloader", "true");
 
+        sPackageManagerInternal = mock(PackageManagerInternal.class);
+        doReturn(new ComponentName("", "")).when(sPackageManagerInternal)
+                .getSystemUiServiceComponent();
+        LocalServices.addService(PackageManagerInternal.class, sPackageManagerInternal);
+
         sService = mock(ActivityManagerService.class);
         sService.mActivityTaskManager = new ActivityTaskManagerService(sContext);
         sService.mActivityTaskManager.initialize(null, null, sContext.getMainLooper());
+        sService.mPackageManagerInt = sPackageManagerInternal;
         sService.mAtmInternal = spy(sService.mActivityTaskManager.getAtmInternal());
 
         sService.mConstants = new ActivityManagerConstants(sContext, sService,
diff --git a/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java b/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
index 1c267a03c1211..6eec649f2ba54 100644
--- a/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
@@ -203,10 +203,11 @@ public class ActivityStarterTests extends ActivityTestsBase {
         final IApplicationThread caller = mock(IApplicationThread.class);
         final WindowProcessListener listener = mock(WindowProcessListener.class);
 
+        final ApplicationInfo ai = new ApplicationInfo();
+        ai.packageName = "com.android.test.package";
         final WindowProcessController wpc =
                 containsConditions(preconditions, PRECONDITION_NO_CALLER_APP)
-                ? null : new WindowProcessController(
-                        service, mock(ApplicationInfo.class), null, 0, -1, null, listener);
+                ? null : new WindowProcessController(service, ai, null, 0, -1, null, listener);
         doReturn(wpc).when(service).getProcessController(anyObject());
 
         final Intent intent = new Intent();
@@ -345,6 +346,7 @@ public class ActivityStarterTests extends ActivityTestsBase {
         doReturn(false).when(mMockPackageManager).isInstantAppInstallerComponent(any());
         doReturn(null).when(mMockPackageManager).resolveIntent(any(), any(), anyInt(), anyInt(),
                 anyInt(), anyBoolean(), anyInt());
+        doReturn(new ComponentName("", "")).when(mMockPackageManager).getSystemUiServiceComponent();
 
         // Never review permissions
         doReturn(false).when(mMockPackageManager).isPermissionsReviewRequired(any(), anyInt());
@@ -656,6 +658,7 @@ public class ActivityStarterTests extends ActivityTestsBase {
         final WindowProcessListener listener = mock(WindowProcessListener.class);
         final ApplicationInfo ai = new ApplicationInfo();
         ai.uid = callingUid;
+        ai.packageName = "com.android.test.package";
         final WindowProcessController callerApp =
                 new WindowProcessController(mService, ai, null, callingUid, -1, null, listener);
         callerApp.setHasForegroundActivities(hasForegroundActivities);
diff --git a/services/tests/wmtests/src/com/android/server/wm/LaunchParamsPersisterTests.java b/services/tests/wmtests/src/com/android/server/wm/LaunchParamsPersisterTests.java
index ac4c228fda9af..12d89de8e9ad1 100644
--- a/services/tests/wmtests/src/com/android/server/wm/LaunchParamsPersisterTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/LaunchParamsPersisterTests.java
@@ -131,6 +131,7 @@ public class LaunchParamsPersisterTests extends ActivityTestsBase {
         LocalServices.addService(PackageManagerInternal.class, mMockPmi);
         when(mMockPmi.getPackageList(any())).thenReturn(new PackageList(
                 Collections.singletonList(TEST_COMPONENT.getPackageName()), /* observer */ null));
+        when(mMockPmi.getSystemUiServiceComponent()).thenReturn(new ComponentName("", ""));
         mTarget.onSystemReady();
 
         final ArgumentCaptor<PackageManagerInternal.PackageListObserver> observerCaptor =
diff --git a/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java b/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
index 55d12dbd0abb0..560d03fe7d9ef 100644
--- a/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
+++ b/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
@@ -40,6 +40,7 @@ import android.app.ActivityManagerInternal;
 import android.app.AppOpsManager;
 import android.app.usage.UsageStatsManagerInternal;
 import android.content.BroadcastReceiver;
+import android.content.ComponentName;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.IntentFilter;
@@ -213,6 +214,9 @@ public class SystemServicesTestRule implements TestRule {
                 anyString(), anyInt());
         doReturn(null).when(packageManagerInternal).getDefaultHomeActivity(anyInt());
 
+        ComponentName systemServiceComponent = new ComponentName("android.test.system.service", "");
+        doReturn(systemServiceComponent).when(packageManagerInternal).getSystemUiServiceComponent();
+
         // PowerManagerInternal
         final PowerManagerInternal pmi = mock(PowerManagerInternal.class);
         final PowerSaveState state = new PowerSaveState.Builder().build();
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java
index 34e487bc1e947..07a6179c00bdf 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java
@@ -29,6 +29,7 @@ import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.when;
 
 import android.app.IApplicationThread;
+import android.content.ComponentName;
 import android.content.pm.ApplicationInfo;
 import android.content.res.Configuration;
 import android.platform.test.annotations.Presubmit;
@@ -55,8 +56,11 @@ public class WindowProcessControllerTests extends ActivityTestsBase {
     @Before
     public void setUp() {
         mMockListener = mock(WindowProcessListener.class);
+
+        ApplicationInfo info = mock(ApplicationInfo.class);
+        info.packageName = "test.package.name";
         mWpc = new WindowProcessController(
-                mService, mock(ApplicationInfo.class), null, 0, -1, null, mMockListener);
+                mService, info, null, 0, -1, null, mMockListener);
         mWpc.setThread(mock(IApplicationThread.class));
     }
 
@@ -176,6 +180,26 @@ public class WindowProcessControllerTests extends ActivityTestsBase {
         assertEquals(mWpc.getLastReportedConfiguration(), newConfig);
     }
 
+    @Test
+    public void testActivityNotOverridingSystemUiProcessConfig() {
+        final ComponentName systemUiServiceComponent = mService.getSysUiServiceComponentLocked();
+        ApplicationInfo applicationInfo = mock(ApplicationInfo.class);
+        applicationInfo.packageName = systemUiServiceComponent.getPackageName();
+
+        WindowProcessController wpc = new WindowProcessController(
+                mService, applicationInfo, null, 0, -1, null, mMockListener);
+        wpc.setThread(mock(IApplicationThread.class));
+
+        final ActivityRecord activity = new ActivityBuilder(mService)
+                .setCreateTask(true)
+                .setUseProcess(wpc)
+                .build();
+
+        wpc.addActivityIfNeeded(activity);
+        // System UI owned processes should not be registered for activity config changes.
+        assertFalse(wpc.registeredForActivityConfigChanges());
+    }
+
     private TestDisplayContent createTestDisplayContentInContainer() {
         return new TestDisplayContent.Builder(mService, 1000, 1500).build();
     }