https://bugs.freedesktop.org/show_bug.cgi?id=29894
--- Comment #3 from Marti marti@juffo.org 2010-08-30 14:54:44 PDT --- (In reply to comment #2)
This is probably vsync related. Does updating to the latest ddx and mesa code in git fix the issue?
Ok, I also built xf86-video-ati from git (in addition to dri2proto, libgl, mesa) and I am still experiencing this problem.