amd_pcm module not autoloading on Thinkpad X13 Gen 2a

amd_pcm module not autoloading on Thinkpad X13 Gen 2a

[Salvatore Bonaccorso]

Hi

A user in Debian reported in contect of debugging a suspend issue on
the laptop, in s0ix mode, that the amd_pmc module is not autoloading.
Context in
https://gitlab.freedesktop.org/drm/amd/-/issues/2357#note_1730880 and
https://bugs.debian.org/1029356 .

What would be helpful here to provide to investigate the issue on why
amd_pmc module is not autoloading?

Regards,
Salvatore

Re: amd_pmc module not autoloading on Thinkpad X13 Gen 2a

[Salvatore Bonaccorso]

Hi Mario,

Thanks for your followup.

On Sun, Jan 22, 2023 at 02:08:00PM +0000, Limonciello, Mario wrote:
> [AMD Official Use Only - General]
> 
> Salvatore,
> 
> The issue has been debugged to be an s3 issue not an s0ix issue.
> This patch series has been submitted for it.
> 
> https://lore.kernel.org/linux-gpio/20230121134812.16637-1-mario.limonciello@amd.com/T/#t

Yes I'm aware of that (and planning for Debian to queue them up after
acceptance). Sorry I was unclear maybe. The other part of the question
is, would not autoloading amd_pmc be an issue, and what information
would be helpful to gather to tackle this?

Regards,
Salvatore

Re: amd_pmc module not autoloading on Thinkpad X13 Gen 2a

[Salvatore Bonaccorso]

Hi Mario,

On Sun, Jan 22, 2023 at 03:34:55PM +0000, Limonciello, Mario wrote:
> [AMD Official Use Only - General]
> 
> Salvatore,
> 
> I don't think we have a bug here. The reporters said it's working
> for s0ix.
> 
> It will only load by default when the system is set to Modern
> Standby/s2idle mode in BIOS. On Lenovo systems they call this
> "Windows" sleep mode for some systems.

Thanks, reporter confirmed that it's actually working (possibly just a
confusion initially on testing the scenarios):

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1029356#74

Thanks for your time looking into it,

Regards,
Salvatore