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Re: Thinkpad T14s Gen 6 AMD. Unable to resume from suspend.





On Sat, Nov 9, 2024 at 12:32 AM AFB <blueaddagio@laposte.net> wrote:
Hi everyone,

Briefly my issue is that I am unable to resume from suspend.

I just tested sleep on my laptop, also running Trixie and it works without any problems.  It does not appear to be an issue with Trixie.


I own the new T14s G6 AMD ; which runs on the AMD CPU Ryzen AI 7 PRO 360 (released in august 2024).
I installed Debian Testing (Trixie) - which come with Kernel 6.11.5-amd64 at the time of the post.

Unfortunately while everything seems to work fine (wifi, bluetooth, webcam, etc.) whenever I suspend the laptop, I am unable to resume.

Good to hear everything else is working.
 
In practice, there's no reaction (screen remains off, suspend indicator keeps blinking - hint that no event is registered by the laptop) when I :
- Open the lid;
- Press a keyboard button ;
- Use the touchpad ;
- Press the power on/off button.

The only way to get back control of the laptop is to hold down the power button and do a hard reset.

I already tried, with no success :
- Upgrading Kernel 6.11.6-amd64 from Debian unstable ;
- Disabling secureboot and security chip features from the BIOS ;
- Enabling all devices from /proc/acpi/wakeup.

I am a bit defeated out here, so do you have any ideas for me ?

In the BIOS check to see if Suspend S3  State is supported. 

https://onlinehelp.ncr.com/Retail/Workstations/7613/HTML/Topics/UserGuide/5.%20Power%20Management/3-ACPI%20Sleep%20States%20(S0%20-%20S5).htm

Also check out this article about disabling modern standby and restoring S3 sleep.

https://www.reddit.com/r/ZephyrusG14/comments/xrkr8u/enable_s3_sleepdisable_modern_standby/

You may also want to consider disabling S1, S3 and S4 in the BIOS to prevent the device from going into standby mode altogether.


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