--- a/jdk/src/solaris/classes/sun/awt/X11GraphicsDevice.java	Tue Jul 22 11:40:06 2008 -0700
+++ b/jdk/src/solaris/classes/sun/awt/X11GraphicsDevice.java	Thu Jul 24 21:12:50 2008 -0700
@@ -385,6 +385,9 @@
             throw new IllegalStateException("Must be in fullscreen mode " +
                                             "in order to set display mode");
         }
+        if (getDisplayMode().equals(dm)) {
+            return;
+        }
         if (dm == null ||
             (dm = getMatchingDisplayMode(dm)) == null)
         {