https://bugs.freedesktop.org/show_bug.cgi?id=28517
--- Comment #22 from Sven Arvidsson sa@whiz.se 2010-08-26 06:38:10 PDT --- No, nothing in dmesg. And just to clarify, it's only the game that's black, X is unaffected.
I'll see if I can figure out where it broke, as it was working at least a little bit better before.