[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 #4 from Török Edwin <edwintorok at gmail.com>  2011-08-05 13:58:50 ---
(In reply to comment #3)
> 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.

I'm using git master now, and it works far better than 7.10 or 7.11.

>  Do you see GPU reset messages in your dmesg
> output after running a problematic game?

I didn't look much at perf output lately, will have to try and see if this is
still an issue with latest mesa, and report back.

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