https://bugzilla.kernel.org/show_bug.cgi?id=112491
--- Comment #11 from Dionisus Torimens djtm@gmx.net --- If you'd like any information please let me know now. Because it seems there is not much interest in finding the problem. So I'll have to and will switch back to the proprietary driver.
(It turned out that I used a different version of the game which crashed the card instead. I get the hard off also without any parameters btw.)