I can repro this reliably. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] Kernel 4.6 drm-next, LLVM 3.8 These days I just get hung screen, audio keeps playing on background, I can ssh in and reboot. This happens only with SC2, I don't see problems with other games. Typically I don't even get halfway through campaign mission, sometimes I get crash when the game is playing video (assuming it's done through the engine...). --