[Bug 33512] radeon: lots of time spent in atombios_crtc_disable

https://bugzilla.kernel.org/show_bug.cgi?id=33512

--- Comment #3 from Alex Deucher alexdeucher@gmail.com 2011-08-05 13:52:21 --- The only places atombios_crtc_disable() called are from drm_crtc_helper_set_config() and drm_helper_resume_force_mode(). I suspect what is happening is that certain games cause GPU resets which call radeon_gpu_reset() which in turn calls drm_helper_resume_force_mode(). I don't think this is a kernel bug at all. I'd suggest trying a newer mesa if you are using an older version. Try 7.11. Do you see GPU reset messages in your dmesg output after running a problematic game?