https://bugs.freedesktop.org/show_bug.cgi?id=66963
--- Comment #250 from Kajzer kap3tan@gmail.com --- With kernels 3.17 and 3.18 I have freezes when playing some games, those freezes can happen somewhere between 10 minutes and 1 hour. Freeze occur only in games. With kernel 3.16 everything is normal and there are no freezes. Latest patch (auto->high and radeon.dpm=1) is used in each of those kernels. Everything else is exactly the same, just booting with different kernel makes a difference.