Karol Herbst
2020-Jul-23 20:30 UTC
[Nouveau] nouveau regression with 5.7 caused by "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"
On Wed, Jul 22, 2020 at 11:25 AM Mika Westerberg <mika.westerberg at linux.intel.com> wrote:> > 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! >yeah, works on the P1G2 as well.
Mika Westerberg
2020-Jul-24 09:57 UTC
[Nouveau] nouveau regression with 5.7 caused by "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"
On Thu, Jul 23, 2020 at 10:30:58PM +0200, Karol Herbst wrote:> On Wed, Jul 22, 2020 at 11:25 AM Mika Westerberg > <mika.westerberg at linux.intel.com> wrote: > > > > 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! > > > > yeah, works on the P1G2 as well.Thanks for testing! Since we have the revert queued for this release cycle, I think I will send an updated version of "PCI/PM: Assume ports without DLL Link Active train links in 100 ms" after v5.9-rc1 is released that has this workaround in place. (I'm continuing my vacation so will be offline next week).
Bjorn Helgaas
2020-Jul-24 14:35 UTC
[Nouveau] nouveau regression with 5.7 caused by "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"
On Fri, Jul 24, 2020 at 12:57:51PM +0300, Mika Westerberg wrote:> On Thu, Jul 23, 2020 at 10:30:58PM +0200, Karol Herbst wrote: > > On Wed, Jul 22, 2020 at 11:25 AM Mika Westerberg > > <mika.westerberg at linux.intel.com> wrote: > > > > > > 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! > > > > yeah, works on the P1G2 as well. > > Thanks for testing! > > Since we have the revert queued for this release cycle, I think I will > send an updated version of "PCI/PM: Assume ports without DLL Link Active > train links in 100 ms" after v5.9-rc1 is released that has this > workaround in place. > > (I'm continuing my vacation so will be offline next week).Sounds fine, sorry for interrupting your vacation!
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