Bug#692225: [3.2->3.6.4 regression] screen starts to flicker after suspend-to-disk
Jonathan Nieder <jrnieder@gmail.com> writes:
> Hi Bjørn,
>
> Sebastian Ramacher wrote[1]:
>
>> I've recently upgrade from 3.2 to 3.6. Since the upgrade after resuming from
>> supsend-to-disk the screen starts to flicker and the kernel log contains the
>> following traceback:
>>
>> [ 4730.108047] ------------[ cut here ]------------
>> [ 4730.108073] WARNING: at /build/buildd-linux_3.6.4-1~experimental.1-amd64-QnAy6j/linux-3.6.4/drivers/gpu/drm/i915/intel_display.c:1225 intel_crtc_disable+0x52/0x86 [i915]()
>> [ 4730.108074] Hardware name: 7458WTH
>> [ 4730.108076] pipe B assertion failure (expected off, current on)
>
> Looks like <http://thread.gmane.org/gmane.comp.video.dri.devel/75108>.
> Do you know if this got fixed?
Looks like you already found the answer, but for the record: As a result
of that thread I started using the fixes from the drm-intel-fixes branch
of git://people.freedesktop.org/~danvet/drm-intel , including the
referenced fa555837 commit, and I have not seen the warning since.
I cannot remember having noticed the flicker issue though, so I cannot
confirm whether that is fixed or not.
Bjørn
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