https://bugs.freedesktop.org/show_bug.cgi?id=59089
--- Comment #10 from Alexandre Demers alexandre.f.demers@gmail.com --- (In reply to comment #9)
Mesa is at latest git, however, my kernel wasn't at Linus' git, so that may be the issue, using HD 6950. I will try the newest kernel and if it doesn't work I'll create a new bug report.
Ok, let me know. Meanwhile, I'll test something on my side to see if your bad commit could be related to another bug I'm experiencing with Tropics.