Can you check which commit you have of the DDX, there was a various recent bug with scrolling, fixed by
commit 34c9b759fbab8d548108e954d55de38c6f5bec31 Author: Chris Wilson <email address hidden> Date: Tue Jul 16 19:39:37 2013 +0100
sna: Note that borderClip region may be more than a singular box
Can you check which commit you have of the DDX, there was a various recent bug with scrolling, fixed by
commit 34c9b759fbab8d5 48108e954d55de3 8c6f5bec31
Author: Chris Wilson <email address hidden>
Date: Tue Jul 16 19:39:37 2013 +0100
sna: Note that borderClip region may be more than a singular box