Created attachment 114442 [details]
dmesg after a crash

Hello,

I get reproducible GPU hangs often within one minute spectating a game in
dota2. Other OpenGL applications runs without hangs. The screen stays black,
the keyboard doesn't work after a crash. Networking via ssh works.

Archlinux 64bit
Mesa: 10.5.1
Linux: 3.18.6 and 3.14.53

Thank you and best wishes
Tom Guder