https://bugs.freedesktop.org/show_bug.cgi?id=86720
--- Comment #30 from a.t.martens@gmail.com --- (In reply to noga.dany from comment #29)
Created attachment 117697 [details] screenshot with R600_DEBUG=nosb on Mesa 10.6.4 and AMD HD 6870
I think the graphics glitches that appear with nosb can be fixed if you disable some of the effects. I can't remember which at the moment. I was able to run with no apparent issues on my HD 6850 after turning on nosb.