Re: [REGRESSION][BISECTED] Dell Precision 7780 wakes up on its own from suspend

Andy Shevchenko
2025-08-25T15:34:55Z

On Mon, Jun 30, 2025 at 02:40:28PM -0400, Mario Limonciello wrote:
> On 6/30/2025 3:14 AM, Askar Safin wrote:
> > ---- On Fri, 27 Jun 2025 07:58:15 +0400 Mario Limonciello <superm1@kernel.org> wrote ---
> > > That's odd. It should be made when the PMC core driver binds. Maybe
> > > others will know what's missing here.
> >
> > Command "grep -r -E -I last_hw_sleep ." in culpit kernel (1796f808e4bb2c074824d)
> > shows nothing. (This is somewhere around 6.1).
> >
> > So, culpit commit is too old.
> >
> > If you want, I can retest this thing on current master and on current master with
> > revert 1796f808e4bb2c074824d.
> >
> > > I see in your bad config interrupt 14 is waking the system. In the good
> > > config interrupt 8 is waking it.
> > >
> > > What is in /proc/interrupts?
> >
> > /proc/interrupts from culpit kernel: https://paste.debian.net/1382819/
> >
> > --
> > Askar Safin
> > https://types.pl/@safinaskar
> >
>
> Looks like your interrupt 14 is ACPI device INTC1085:00.
>
> Some quick searches this seems to be an Intel GPIO controller.
>
> Andy,
>
> Any ideas how to debug next?

I believe it's related to the touchpad (can you check that wake happens due to
actually IRQ on pin 355 of the GPIO controller?

--
With Best Regards,
Andy Shevchenko