http://bugs.winehq.org/show_bug.cgi?id=34761
--- Comment #1 from Henri Verbeet hverbeet@gmail.com 2013-10-18 12:27:07 CDT --- Does commit 74faebd68d738ef44cc5990e883091329f72d7d7 / Wine 1.7.1 make it any better? Does it work with r600g?
System lockups are not Wine bugs by definition, even if something Wine does triggers them. In this case, I think it's likely fglrx is to blame for locking up the system.