https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #5 from vand2@gmx.de 2011-05-06 09:56:55 PDT --- (In reply to comment #4)
(In reply to comment #3)
With the current git version the distortions are gone and all looks ok.
Could you possibly bisect the fix, so that we can get it to 7.10.x?
Do you mean finding the git commit between 7.8 and 7.9 after which the issue appeared?