https://bugs.freedesktop.org/show_bug.cgi?id=86720
--- Comment #9 from João Grego jpgrego@gmail.com --- Having the same issue with HD5650. When using mesa 10.2.8 there was no problem, but when I upgraded to mesa 10.4.2 the entire system froze after loading a game, either new or saved.
OS: Gentoo amd64 GPU: Radeon HD5650 GPU driver: xf86-video-ati 7.5.0 Mesa: 10.4.2 CPU: intel i3 M370