diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSPanelControllerBase.java b/packages/SystemUI/src/com/android/systemui/qs/QSPanelControllerBase.java
index 4739a3f..08cb4a9 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSPanelControllerBase.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSPanelControllerBase.java
@@ -25,6 +25,7 @@
 import android.content.res.Configuration;
 import android.metrics.LogMaker;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.UiEventLogger;
 import com.android.systemui.Dumpable;
@@ -80,7 +81,8 @@
 
     private final QSHost.Callback mQSHostCallback = this::setTiles;
 
-    private final QSPanel.OnConfigurationChangedListener mOnConfigurationChangedListener =
+    @VisibleForTesting
+    protected final QSPanel.OnConfigurationChangedListener mOnConfigurationChangedListener =
             new QSPanel.OnConfigurationChangedListener() {
                 @Override
                 public void onConfigurationChange(Configuration newConfig) {
@@ -156,6 +158,7 @@
         mView.addOnConfigurationChangedListener(mOnConfigurationChangedListener);
         mHost.addCallback(mQSHostCallback);
         setTiles();
+        mLastOrientation = getResources().getConfiguration().orientation;
         switchTileLayout(true);
 
         mDumpManager.registerDumpable(mView.getDumpableTag(), this);
@@ -356,8 +359,7 @@
             return false;
         }
         return mUsingMediaPlayer && mMediaHost.getVisible()
-                    && getResources().getConfiguration().orientation
-                    == Configuration.ORIENTATION_LANDSCAPE;
+                && mLastOrientation == Configuration.ORIENTATION_LANDSCAPE;
     }
 
     private void logTiles() {
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerBaseTest.java b/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerBaseTest.java
index 65e5f97..faef870 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerBaseTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerBaseTest.java
@@ -27,6 +27,7 @@
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -98,11 +99,11 @@
     Resources mResources;
     @Mock
     Configuration mConfiguration;
+    @Mock
+    Runnable mHorizontalLayoutListener;
 
     private QSPanelControllerBase<QSPanel> mController;
 
-
-
     /** Implementation needed to ensure we have a reflectively-available class name. */
     private class TestableQSPanelControllerBase extends QSPanelControllerBase<QSPanel> {
         protected TestableQSPanelControllerBase(QSPanel view, QSTileHost host,
@@ -242,18 +243,44 @@
         when(mMediaHost.getVisible()).thenReturn(true);
 
         when(mFeatureFlags.isTwoColumnNotificationShadeEnabled()).thenReturn(false);
+        when(mQSPanel.getDumpableTag()).thenReturn("QSPanelLandscape");
         mController = new TestableQSPanelControllerBase(mQSPanel, mQSTileHost,
                 mQSCustomizerController, mMediaHost,
                 mMetricsLogger, mUiEventLogger, mQSLogger, mDumpManager, mFeatureFlags);
+        mController.init();
 
         assertThat(mController.shouldUseHorizontalLayout()).isTrue();
 
         when(mFeatureFlags.isTwoColumnNotificationShadeEnabled()).thenReturn(true);
         when(mResources.getBoolean(R.bool.config_use_split_notification_shade)).thenReturn(true);
+        when(mQSPanel.getDumpableTag()).thenReturn("QSPanelPortrait");
         mController = new TestableQSPanelControllerBase(mQSPanel, mQSTileHost,
                 mQSCustomizerController, mMediaHost,
                 mMetricsLogger, mUiEventLogger, mQSLogger, mDumpManager, mFeatureFlags);
+        mController.init();
 
         assertThat(mController.shouldUseHorizontalLayout()).isFalse();
     }
+
+    @Test
+    public void testChangeConfiguration_shouldUseHorizontalLayout() {
+        when(mMediaHost.getVisible()).thenReturn(true);
+        mController.setUsingHorizontalLayoutChangeListener(mHorizontalLayoutListener);
+
+        // When device is rotated to landscape
+        mConfiguration.orientation = Configuration.ORIENTATION_LANDSCAPE;
+        mController.mOnConfigurationChangedListener.onConfigurationChange(mConfiguration);
+
+        // Then the layout changes
+        assertThat(mController.shouldUseHorizontalLayout()).isTrue();
+        verify(mHorizontalLayoutListener).run(); // not invoked
+
+        // When it is rotated back to portrait
+        mConfiguration.orientation = Configuration.ORIENTATION_PORTRAIT;
+        mController.mOnConfigurationChangedListener.onConfigurationChange(mConfiguration);
+
+        // Then the layout changes back
+        assertThat(mController.shouldUseHorizontalLayout()).isFalse();
+        verify(mHorizontalLayoutListener, times(2)).run();
+    }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerTest.java
index bf6c981..35ebacb 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/QSPanelControllerTest.java
@@ -23,6 +23,8 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.content.res.Configuration;
+import android.content.res.Resources;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper.RunWithLooper;
 
@@ -98,6 +100,10 @@
     FalsingManagerFake mFalsingManager = new FalsingManagerFake();
     @Mock
     FeatureFlags mFeatureFlags;
+    @Mock
+    Resources mResources;
+    @Mock
+    Configuration mConfiguration;
 
     private QSPanelController mController;
 
@@ -109,6 +115,8 @@
         when(mQSPanel.getDumpableTag()).thenReturn("QSPanel");
         when(mQSPanel.getOrCreateTileLayout()).thenReturn(mPagedTileLayout);
         when(mQSPanel.getTileLayout()).thenReturn(mPagedTileLayout);
+        when(mQSPanel.getResources()).thenReturn(mResources);
+        when(mResources.getConfiguration()).thenReturn(mConfiguration);
         when(mQSTileHost.getTiles()).thenReturn(Collections.singleton(mQSTile));
         when(mQSTileHost.createTileView(any(), eq(mQSTile), anyBoolean())).thenReturn(mQSTileView);
         when(mToggleSliderViewControllerFactory.create(any(), any()))