i915: screen flicker

[Jani Nikula]

On Wed, 27 Apr 2016, Mihai Donțu <mihai.dontu at gmail.com> wrote:
> On Wed, 27 Apr 2016 10:09:32 +0300 Jani Nikula wrote:
>> On Wed, 27 Apr 2016, Mihai Donțu wrote:
>> > I noticed that since I started using 4.6.0-rcX, my screen flickers once
>> > or twice after I stop using my laptop for ~1min or so. Given the
>> > behavior, my prime suspect is the PSR feature that you have announced
>> > for this release:
>> >
>> >   http://blog.ffwll.ch/2016/03/neat-drmi915-stuff-for-46.html
>> >
>> > Is 'enable_psr' the right knob to use to turn this feature off and see
>> > if my suspicions are correct? Or is there a patch floating around that
>> > I can test?  
>> 
>> i915.enable_psr=0 is the one to try, yes.
>
> I can confirm that with PSR off, the flicker goes away.

Please file a bug at [1] and assign to Rodrigo (Cc'd).

BR,
Jani.

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel


-- 
Jani Nikula, Intel Open Source Technology Center