--- src/radeon_dri2.c	2013-08-07 17:44:09.000000000 +0900
+++ src/radeon_dri2.c.fix	2013-10-20 11:09:07.000000000 +0900
@@ -750,7 +750,7 @@
 
     region.extents.x1 = region.extents.y1 = 0;
     region.extents.x2 = front_priv->pixmap->drawable.width;
-    region.extents.y2 = front_priv->pixmap->drawable.width;
+    region.extents.y2 = front_priv->pixmap->drawable.height;
     region.data = NULL;
     DamageRegionAppend(&front_priv->pixmap->drawable, &region);