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

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Hi,

On 3/9/22 14:57, Rafael J. Wysocki wrote:
> On Wed, Mar 9, 2022 at 2:44 PM Hans de Goede <hdegoede@xxxxxxxxxx> 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.

Regards,

Hans




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