Nouveau - Jul 2020 - nouveau regression with 5.7 caused by "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"

On Tue, Jul 21, 2020 at 11:01:55AM -0400, Lyude Paul
wrote:
> Sure thing. Also, feel free to let me know if you'd like access to one
of the
> systems we saw breaking with this patch - I'm fairly sure I've got
one of them
> locally at my apartment and don't mind setting up AMT/KVM/SSH
Probably no need for remote access (thanks for the offer, though). I
attached a test patch to the bug report:

  https://bugzilla.kernel.org/show_bug.cgi?id=208597

that tries to work it around (based on the ->pm_cap == 0). I wonder if
anyone would have time to try it out.

On Tue, 2020-07-21 at 18:27 +0300, Mika Westerberg
wrote:
> On Tue, Jul 21, 2020 at 11:01:55AM -0400, Lyude Paul wrote:
> > Sure thing. Also, feel free to let me know if you'd like access to
one of
> > the
> > systems we saw breaking with this patch - I'm fairly sure I've
got one of
> > them
> > locally at my apartment and don't mind setting up AMT/KVM/SSH
> 
> Probably no need for remote access (thanks for the offer, though). I
> attached a test patch to the bug report:
> 
>   https://bugzilla.kernel.org/show_bug.cgi?id=208597
> 
> that tries to work it around (based on the ->pm_cap == 0). I wonder if
> anyone would have time to try it out.
Will give it a shot today and let you know the result
> 
-- 
Cheers,
	Lyude Paul (she/her)
	Software Engineer at Red Hat

On Tue, 2020-07-21 at 12:00 -0400, Lyude Paul wrote:
> On Tue, 2020-07-21 at 18:27 +0300, Mika Westerberg wrote:
> > On Tue, Jul 21, 2020 at 11:01:55AM -0400, Lyude Paul wrote:
> > > Sure thing. Also, feel free to let me know if you'd like
access to one
> > > of
> > > the
> > > systems we saw breaking with this patch - I'm fairly sure
I've got one
> > > of
> > > them
> > > locally at my apartment and don't mind setting up AMT/KVM/SSH
> > 
> > Probably no need for remote access (thanks for the offer, though). I
> > attached a test patch to the bug report:
> > 
> >   https://bugzilla.kernel.org/show_bug.cgi?id=208597
> > 
> > that tries to work it around (based on the ->pm_cap == 0). I wonder
if
> > anyone would have time to try it out.
> 
> Will give it a shot today and let you know the result
Ahh-actually, I thought the laptop I had locally could reproduce this bug but
that doesn't appear to be the case whoops. Karol Herbst still has access to
a
machine that can test this though, so they'll likely get to trying the patch
today or tommorrow
> 
-- 
Cheers,
	Lyude Paul (she/her)
	Software Engineer at Red Hat

On 7/21/20 10:27 AM, Mika Westerberg wrote:
> On Tue, Jul 21, 2020 at 11:01:55AM -0400, Lyude Paul wrote:
>> Sure thing. Also, feel free to let me know if you'd like access to
one of the
>> systems we saw breaking with this patch - I'm fairly sure I've
got one of them
>> locally at my apartment and don't mind setting up AMT/KVM/SSH
> Probably no need for remote access (thanks for the offer, though). I
> attached a test patch to the bug report:
>
>   https://bugzilla.kernel.org/show_bug.cgi?id=208597
>
> that tries to work it around (based on the ->pm_cap == 0). I wonder if
> anyone would have time to try it out.

Hi Mika,

I can confirm that this patch applied to 5.4.52 fixes the issue with
hybrid graphics on the Thinkpad X1 Extreme gen2.

Thanks,

Pat

On Tue, Jul 21, 2020 at 01:37:12PM -0500, Patrick Volkerding
wrote:
> On 7/21/20 10:27 AM, Mika Westerberg wrote:
> > On Tue, Jul 21, 2020 at 11:01:55AM -0400, Lyude Paul wrote:
> >> Sure thing. Also, feel free to let me know if you'd like
access to one of the
> >> systems we saw breaking with this patch - I'm fairly sure
I've got one of them
> >> locally at my apartment and don't mind setting up AMT/KVM/SSH
> > Probably no need for remote access (thanks for the offer, though). I
> > attached a test patch to the bug report:
> >
> >   https://bugzilla.kernel.org/show_bug.cgi?id=208597
> >
> > that tries to work it around (based on the ->pm_cap == 0). I wonder
if
> > anyone would have time to try it out.
> 
> 
> Hi Mika,
> 
> I can confirm that this patch applied to 5.4.52 fixes the issue with
> hybrid graphics on the Thinkpad X1 Extreme gen2.
Great, thanks for testing!