diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 4258e07..575ae691 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -3277,9 +3277,6 @@
         if (!checkCallingPermission(permission.CONTROL_KEYGUARD, "dismissKeyguard")) {
             throw new SecurityException("Requires CONTROL_KEYGUARD permission");
         }
-        if (mAtmInternal.isDreaming()) {
-            mAtmService.mTaskSupervisor.wakeUp("dismissKeyguard");
-        }
         synchronized (mGlobalLock) {
             mPolicy.dismissKeyguardLw(callback, message);
         }
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
index a91298f..10011fd 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
@@ -31,7 +31,6 @@
 
 import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
 
-import static com.android.dx.mockito.inline.extended.ExtendedMockito.doNothing;
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.doReturn;
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.never;
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.spyOn;
@@ -42,7 +41,6 @@
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
@@ -158,16 +156,6 @@
     }
 
     @Test
-    public void testDismissKeyguardCanWakeUp() {
-        doReturn(true).when(mWm).checkCallingPermission(anyString(), anyString());
-        spyOn(mWm.mAtmInternal);
-        doReturn(true).when(mWm.mAtmInternal).isDreaming();
-        doNothing().when(mWm.mAtmService.mTaskSupervisor).wakeUp(anyString());
-        mWm.dismissKeyguard(null, "test-dismiss-keyguard");
-        verify(mWm.mAtmService.mTaskSupervisor).wakeUp(anyString());
-    }
-
-    @Test
     public void testMoveWindowTokenToDisplay_NullToken_DoNothing() {
         mWm.moveWindowTokenToDisplay(null, mDisplayContent.getDisplayId());