Re: [PATCH 5/5] drm/i915: Enable PSR by default.

Rodrigo Vivi
2015-06-13T06:47:57Z

Hi Matthew,

here is the patch I've mentioned on irc today:
http://cgit.freedesktop.org/~vivijim/drm-intel/commit/?h=psr_for_mjg59&id=83809492138f2395bfb12c19e6de916de64b9246

And I prepared this branch for now:
http://cgit.freedesktop.org/~vivijim/drm-intel/log/?h=psr_for_mjg59

I'm not sending yet the patches because I still face the missed screen
during boot that you had mentioned. As soon as I fixed it I'll submit
everything.

Thanks,
Rodrigo.

On Mon, Apr 20, 2015 at 7:43 AM, Vivi, Rodrigo <rodrigo.vivi@intel.com> wrote:
> On Sat, 2015-04-18 at 08:27 +0100, Matthew Garrett wrote:
>> On Mon, Apr 13, 2015 at 04:46:29PM -0700, Rodrigo Vivi wrote:
>> > Another questions,
>> >
>> > Are you using powertop --auto-tune?
>> >
>> > If so, can you please try to repdoruce X slowness issue on these 2 scenarios:
>> > 1. without doing the powertop auto-tune and psr enabled.
>>
>> Ah! Yes, this is the problem. If runtime PM is enabled on the i915 PCI
>> device (and the HDMI HDA device), things break. If it's disabled,
>> everything works fine. I hope that helps narrow it down!
>>
>
> Are you using external USB keyboard and mouse? I can just face this
> slowness when using USB, if I don't use any USB everything is fine. If
> switch all USB powertop scripts to "Bad" I also can use my system
> reliably. This seems a bug in usb power management. Could you please
> verify if this is the same that I'm facing here?
>
> One extra thing, could you confirm that you face this behaviour even
> with i915.enable_psr=0 so Daniel can accept this last patch?
>
> Thank you very much,
> Rodrigo.

--
Rodrigo Vivi
Blog: http://blog.vivi.eng.br