https://bugs.freedesktop.org/show_bug.cgi?id=83285
--- Comment #2 from Ilya dikiy_evrej@web.de --- Have the same bug on a Radeon HD2400 Pro playing Crimsonland2 (but other games too). GPU locks, X server hangs, after 10 seconds I can restart X server by C-A-Backspace. But in a new session the are no accelerated OpenGL. I must restart a Computer. Dmesg-log attached