linux-kernel - Re: Lenovo P1 suspend to ram regression

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Message-ID: <aInqr7C08F+Ex0II@duo.ucw.cz>
Date: Wed, 30 Jul 2025 11:49:35 +0200
From: Pavel Machek <pavel@....cz>
To: Norbert Preining <norbert@...ining.info>
Cc: linux-kernel@...r.kernel.org
Subject: Re: Lenovo P1 suspend to ram regression

Hi!

> (please Cc, thanks)
> 
> since some time, probably some kernel revisions, my Lenovo P1 Gen6
> goes to sleep (suspend to ram), but produces considerable heat even
> in sleep mode. Not surprising, it also drops battery level within
> short time.
> 
> I am not sure where to report this bug, as well as which information I
> can provide. 
> 
> Kernel is 6.15.4-zen2-1-zen on Arch Linux
> 
> >From the dmesg:
> 
> [    0.000000] DMI: LENOVO 21FV002EUS/21FV002EUS, BIOS N3ZET48W (1.35 ) 02/25/2025
> 
> The supported sleep state seems to only be s2sleep:

You may want to Cc Rafael and regression tracker.

And no, this is not easy to debug. Start is to determine good and bad
kernel versions.

Best regards,
								Pavel

> ❯ cat /sys/power/mem_sleep
> [s2idle]
> 
> 
> Around suspend:
> [47798.668789] PM: suspend entry (s2idle)
> [47798.795045] Filesystems sync: 0.126 seconds
> [47798.931393] Freezing user space processes
> [47798.933739] Freezing user space processes completed (elapsed 0.002 seconds)
> [47798.933743] OOM killer disabled.
> [47798.933744] Freezing remaining freezable tasks
> [47798.935141] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)
> [47798.935143] printk: Suspending console(s) (use no_console_suspend to debug)
> [47798.953325] cs35l41-hda i2c-CSC3551:00-cs35l41-hda.0: Asserting Reset
> [47798.953498] CoreFreq: Suspend(0:1:19)
> [47799.413769] ACPI: EC: interrupt blocked
> [47805.654440] thinkpad_acpi: undocked from hotplug port replicator
> [47807.218125] NVRM: rm_power_source_change_event: rm_power_source_change_event: Failed to handle Power Source change event, status=0x11
> [67168.670527] ACPI: EC: interrupt unblocked
> [67169.622762] spd5118 10-0050: PM: dpm_run_callback(): spd5118_resume [spd5118] returns -6
> [67169.622773] spd5118 10-0050: PM: failed to resume async: error -6
> [67169.622816] spd5118 10-0052: PM: dpm_run_callback(): spd5118_resume [spd5118] returns -6
> [67169.622828] spd5118 10-0052: PM: failed to resume async: error -6
> [67169.635622] i915 0000:00:02.0: [drm] GT0: GuC firmware i915/adlp_guc_70.bin version 70.44.1
> [67169.635628] i915 0000:00:02.0: [drm] GT0: HuC firmware i915/tgl_huc.bin version 7.9.3
> [67169.644108] nvme nvme0: 20/0/0 default/read/poll queues
> [67169.650551] i915 0000:00:02.0: [drm] GT0: HuC: authenticated for all workloads
> [67169.651715] i915 0000:00:02.0: [drm] GT0: GUC: submission enabled
> [67169.651717] i915 0000:00:02.0: [drm] GT0: GUC: SLPC enabled
> [67169.652243] i915 0000:00:02.0: [drm] GT0: GUC: RC enabled
> [67169.654296] CoreFreq: SoC_SKL_VTD: request_mem_region 0xfed90000
> 
> 
> What other information can I provide to debug this issue.
> 
> Thanks for any pointer, and please Cc.
> 
> Norbert
> 
> --
> DI Dr Norbert Preining                        https://www.preining.info
> arXiv / Cornell University   +   IFMGA Guide   +   TU Wien  +  TeX Live
> GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13

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