Re: Bad flicker on skylake HQD due to code in the 4.7 merge window

From: Jani Nikula
Date: Tue May 31 2016 - 03:51:36 EST

On Mon, 30 May 2016, James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
> I've tested a pristine 4.6.0 system, so it's definitely something that
> went in during the merge window. The flicker isn't continuous, it's
> periodic, with an interval of something like 2-5 seconds. It looks
> like an old analogue TV going out of sync and then resyncing. I've
> attached the dmesg and log below just in case they can help. I
> might be able to bisect this next week, but, unfortunately, this is my
> current laptop and I'm travelling this week.

Please try i915.enable_psr=0 module parameter.


Jani Nikula, Intel Open Source Technology Center