https://bugs.freedesktop.org/show_bug.cgi?id=76490
--- Comment #76 from Alex Deucher alexdeucher@gmail.com --- Can you try the code in this branch: http://cgit.freedesktop.org/~agd5f/linux/log/?h=new_smc and the new ucode from here: http://people.freedesktop.org/~agd5f/radeon_ucode/k/