Comment # 8 on bug 80004 from Benjamin Bellec

(In reply to Vitaliy Filippov from comment #7)
> It seems it's OK with nosb

OK, this is maybe related to issue I have :
https://bugs.freedesktop.org/show_bug.cgi?id=86165

(In reply to Vitaliy Filippov from comment #7)
> although the frame rate seems lower

Yes, "sb" is the enhanced r600g GLSL compiler. So disabling it decrease the
performance.