http://bugs.winehq.org/show_bug.cgi?id=18418
--- Comment #11 from hpestilence hpestilence@gmail.com 2009-06-20 17:46:35 --- I finally found something about the error messages on an Ubuntu wiki, they indicate the gpu is locked up. Under Windows the ati drivers comes with VPU Recover for situations like that, but that's not available in linux.
This is different from Alexandre's problem though.