https://bugs.freedesktop.org/show_bug.cgi?id=29367
--- Comment #5 from Andrew Randrianasulu randrik@mail.ru 2010-10-08 01:28:21 PDT --- (In reply to comment #4)
Could you try the patch in bug 21374 which looks like a similar issue?
Patch from https://bugs.freedesktop.org/show_bug.cgi?id=21374#c5 not applicable to latest mesa without modifications. I'll try to apply it manually, but right now i have different card in AGP slot, so testing will take some time. Thanks for pointer!