https://bugs.freedesktop.org/show_bug.cgi?id=80004
--- Comment #8 from Benjamin Bellec b.bellec@gmail.com --- (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.