diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 1b2aefcd6ff0c..9de1c5ea1a3d4 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -272,6 +272,9 @@
     <!-- Permission to register process observer -->
     <uses-permission android:name="android.permission.SET_ACTIVITY_WATCHER"/>
 
+    <!-- Be allowed to send commands to Flinger via SurfaceControl. -->
+    <uses-permission android:name="android.permission.ACCESS_SURFACE_FLINGER" />
+
     <!-- Restore settings (used by QS) even if they have been modified -->
     <uses-permission android:name="android.permission.MODIFY_SETTINGS_OVERRIDEABLE_BY_RESTORE" />
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BlurUtils.kt b/packages/SystemUI/src/com/android/systemui/statusbar/BlurUtils.kt
index aafeabc7c1a23..dce19cf86b35d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BlurUtils.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BlurUtils.kt
@@ -45,6 +45,8 @@ open class BlurUtils @Inject constructor(
     val minBlurRadius = resources.getDimensionPixelSize(R.dimen.min_window_blur_radius)
     val maxBlurRadius = resources.getDimensionPixelSize(R.dimen.max_window_blur_radius)
 
+    private var lastAppliedBlur = 0
+
     init {
         dumpManager.registerDumpable(javaClass.name, this)
     }
@@ -75,17 +77,25 @@ open class BlurUtils @Inject constructor(
      *
      * @param viewRootImpl The window root.
      * @param radius blur radius in pixels.
+     * @param opaque if surface is opaque, regardless or having blurs or no.
      */
-    fun applyBlur(viewRootImpl: ViewRootImpl?, radius: Int, opaqueBackground: Boolean) {
+    fun applyBlur(viewRootImpl: ViewRootImpl?, radius: Int, opaque: Boolean) {
         if (viewRootImpl == null || !viewRootImpl.surfaceControl.isValid ||
                 !supportsBlursOnWindows()) {
             return
         }
         createTransaction().use {
             it.setBackgroundBlurRadius(viewRootImpl.surfaceControl, radius)
-            it.setOpaque(viewRootImpl.surfaceControl, opaqueBackground)
+            it.setOpaque(viewRootImpl.surfaceControl, opaque)
+            if (lastAppliedBlur == 0 && radius != 0) {
+                it.setEarlyWakeupStart()
+            }
+            if (lastAppliedBlur != 0 && radius == 0) {
+                it.setEarlyWakeupEnd()
+            }
             it.apply()
         }
+        lastAppliedBlur = radius
     }
 
     @VisibleForTesting
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/BlurUtilsTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/BlurUtilsTest.kt
index 2b44d8bbd364d..8e52588e5390a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/BlurUtilsTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/BlurUtilsTest.kt
@@ -27,6 +27,7 @@ import org.junit.Before
 import org.junit.Test
 import org.mockito.Mock
 import org.mockito.Mockito.`when`
+import org.mockito.Mockito.clearInvocations
 import org.mockito.Mockito.eq
 import org.mockito.Mockito.mock
 import org.mockito.Mockito.verify
@@ -38,13 +39,13 @@ class BlurUtilsTest : SysuiTestCase() {
     @Mock lateinit var resources: Resources
     @Mock lateinit var dumpManager: DumpManager
     @Mock lateinit var transaction: SurfaceControl.Transaction
-    @Mock lateinit var corssWindowBlurListeners: CrossWindowBlurListeners
+    @Mock lateinit var crossWindowBlurListeners: CrossWindowBlurListeners
     lateinit var blurUtils: BlurUtils
 
     @Before
     fun setup() {
         MockitoAnnotations.initMocks(this)
-        `when`(corssWindowBlurListeners.isCrossWindowBlurEnabled).thenReturn(true)
+        `when`(crossWindowBlurListeners.isCrossWindowBlurEnabled).thenReturn(true)
         blurUtils = TestableBlurUtils()
     }
 
@@ -74,7 +75,21 @@ class BlurUtilsTest : SysuiTestCase() {
         verify(transaction).apply()
     }
 
-    inner class TestableBlurUtils() : BlurUtils(resources, corssWindowBlurListeners, dumpManager) {
+    @Test
+    fun testEarlyWakeUp() {
+        val radius = 10
+        val surfaceControl = mock(SurfaceControl::class.java)
+        val viewRootImpl = mock(ViewRootImpl::class.java)
+        `when`(viewRootImpl.surfaceControl).thenReturn(surfaceControl)
+        `when`(surfaceControl.isValid).thenReturn(true)
+        blurUtils.applyBlur(viewRootImpl, radius, true /* opaque */)
+        verify(transaction).setEarlyWakeupStart()
+        clearInvocations(transaction)
+        blurUtils.applyBlur(viewRootImpl, 0, true /* opaque */)
+        verify(transaction).setEarlyWakeupEnd()
+    }
+
+    inner class TestableBlurUtils() : BlurUtils(resources, crossWindowBlurListeners, dumpManager) {
         override fun supportsBlursOnWindows(): Boolean {
             return true
         }