https://bugzilla.kernel.org/show_bug.cgi?id=68571
--- Comment #42 from kilobug@kilobug.org --- I tried with audio=0 with 3.14 and 3.15-rc8, and it's slightly better, but there are still freezes.
X doesn't crash at startup anymore even with hyperz enabled, but using an OpenGL game or playing a HD movie with mplayer ends up with a system freeze after a while, with hyperz enabled or disabled.