Re: Many reports of laptops getting hot while suspended with kernels >= 5.16.10 || >= 5.17-rc1

From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Hans de Goede <hdegoede@redhat.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	Stable <stable@vger.kernel.org>,
	Justin Forbes <jmforbes@linuxtx.org>,
	Mark Pearson <markpearson@lenovo.com>,
	ACPI Devel Maling List <linux-acpi@vger.kernel.org>
Subject: Re: Many reports of laptops getting hot while suspended with kernels >= 5.16.10 || >= 5.17-rc1
Date: Wed, 9 Mar 2022 17:34:47 +0100	[thread overview]
Message-ID: <CAJZ5v0js8Vr7dW09WGyR_JTn4kMybDhaTWt4yziqwSM+oAXUNA@mail.gmail.com> (raw)
In-Reply-To: <ad3b77f8-7e75-1dfa-8ee4-1077336911aa@redhat.com>

On Wed, Mar 9, 2022 at 5:33 PM Hans de Goede <hdegoede@redhat.com> wrote:
>
> Hi,
>
> On 3/9/22 14:57, Rafael J. Wysocki wrote:
> > On Wed, Mar 9, 2022 at 2:44 PM Hans de Goede <hdegoede@redhat.com> wrote:
> >>
> >> Hi Rafael,
> >>
> >> We (Fedora) have been receiving a whole bunch of bug reports about
> >> laptops getting hot/toasty while suspended with kernels >= 5.16.10
> >> and this seems to still happen with 5.17-rc7 too.
> >>
> >> The following are all bugzilla.redhat.com bug numbers:
> >>
> >>    1750910 - Laptop failed to suspend and completely drained the battery
> >>    2050036 - Framework laptop: 5.16.5 breaks s2idle sleep
> >>    2053957 - Package c-states never go below C2
> >>    2056729 - No lid events when closing lid / laptop does not suspend
> >>    2057909 - Thinkpad X1C 9th in s2idle suspend still draining battery to zero over night , Ap
> >>    2059668 - HP Envy Laptop deadlocks on entering suspend power state when plugged in. Case ge
> >>    2059688 - Dell G15 5510 s2idle fails in 5.16.11 works in 5.16.10
> >>
> >> And one of the bugs has also been mirrored at bugzilla.kernel.org by
> >> the reporter:
> >>
> >>  bko215641 - Dell G15 5510 s2idle fails in 5.16.11 works in 5.16.10
> >>
> >> The common denominator here (besides the kernel version) seems to
> >> be that these are all Ice or Tiger Lake systems (I did not do
> >> check this applies 100% to all bugs, but it does see, to be a pattern).
> >>
> >> A similar arch-linux report:
> >>
> >> https://bbs.archlinux.org/viewtopic.php?id=274292&p=2
> >>
> >> Suggest that reverting
> >> "ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE"
> >>
> >> which was cherry-picked into 5.16.10 fixes things.
> >
> > Thanks for letting me know!
> >
> >> If you want I can create Fedora kernel test-rpms of a recent
> >> 5.16.y with just that one commit reverted and ask users to
> >> confirm if that helps. Please let me know if doing that woulkd
> >> be useful ?
> >
> > Yes, it would.
> >
> > However, it follows from the arch-linux report linked above that
> > 5.17-rc is fine, so it would be good to also check if reverting that
> > commit from 5.17-rc helps.
>
> Ok, I've done Fedora kernel builds of both 5.16.13 and 5.17-rc7 with
> the patch reverted and asked the bug-reporters to test both.

Thanks!