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

[bugzilla-daemon at bugzilla.kernel.org]

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





--- Comment #3 from Alex Deucher <alexdeucher at 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?

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