https://bugs.freedesktop.org/show_bug.cgi?id=89685
--- Comment #14 from Michel Dänzer michel@daenzer.net --- (In reply to Kevin from comment #9)
I do `export R600_DEBUG=ps,vs,gs` and then run the game? Where and how do I get output? dmesg? jounralctl? Something else?
It should be in the stderr output of the game. Make sure you launch steam / the game from a terminal so you can see it, or maybe just capture it to a file with 2>/path/to/file.txt.