diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 080a2d1..86024ac 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -729,8 +729,18 @@
             mVisibleFrame.set(mContentFrame);
             mStableFrame.set(mContentFrame);
         } else if (mAttrs.type == TYPE_DOCK_DIVIDER) {
-            mDisplayContent.getDockedDividerController().positionDockedStackedDivider(mFrame);
-            mContentFrame.set(mFrame);
+            if (isVisibleLw()) {
+                // We don't adjust the dock divider frame for reasons other than performance. The
+                // real reason is that if it gets adjusted before it is shown for the first time,
+                // it would get size (0, 0). This causes a problem when we finally show the dock
+                // divider and try to draw to it. We do set the surface size at that moment to
+                // the correct size, but it's too late for the Surface Flinger to make it
+                // available for view rendering and as a result the renderer receives size 1, 1.
+                // This way we just keep the divider at the original size and Surface Flinger
+                // will return the correct value to the renderer.
+                mDisplayContent.getDockedDividerController().positionDockedStackedDivider(mFrame);
+                mContentFrame.set(mFrame);
+            }
         } else {
             mContentFrame.set(Math.max(mContentFrame.left, mFrame.left),
                     Math.max(mContentFrame.top, mFrame.top),