Comment # 1 on bug 81045 from Thomas Rohloff

I tried the Effects Cave Demo on a Radeon HD 6950: After it loaded the sound
played but the screen was going into standby and the system wasn't even
reacting to MagSysRq keys. Would love to give logs but they where wiped with
the system reset.

OpenGL renderer string: Gallium 0.4 on AMD CAYMAN
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.3.0-devel
(git-3c77d2a)

Kernel 3.15.3