Just tried Mesa-Git (13.1) with the AMDGPU driver on R9 270X. The crash happens here as well. However, looking at journalctl I can see new errors from the AMDGPU driver, and a brief research tells me it could be some TF2 texturing problem. The error: GPU fault detected: 147 0x000ac802 Similar bugs have been resolved already: https://bugs.freedesktop.org/show_bug.cgi?id=87278 https://bugs.freedesktop.org/show_bug.cgi?id=84614 LLVM seems to be related too.