Thanks for your help :)

@Thimothy, I see what you mean with the sleep states - but my laptop being (too) recent, it seems to support only s2idle (no S3 sleep) as /cat /sys/power/mem_sleep/ returns *[s2idle]* Moreover, there is no sleep options in the BIOS, also for reference this is the Lenovo BIOS emulator for my specific laptop <https://download.lenovo.com/bsco/index.html#/graphicalsimulator/ThinkPad%20T14s%20Gen%206%20%2821N1,21N2%29>.


@songbird, I think I do have a swap partition, and it's slightly larger than the physical RAM (32 Gb).
Here's the output of *lsblk* :
Code: Select all <https://forums.debian.net/viewtopic.php?p=810538#>

NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
nvme0n1     259:0    0 476,9G  0 disk
├─nvme0n1p1 259:1    0   300M  0 part /boot/efi
├─nvme0n1p2 259:2    0 443,1G  0 part /
└─nvme0n1p3 259:3    0  33,5G  0 part [SWAP]




Also since posting my question, I've kept looking for solutions and noticed two things : I am able to resume if I suspend my pc with *pm-suspend* but it doesn't work with *systemctl suspend* ; I am also able to resume if I add *amd_iommu=off* to the kernel parameters I am not sure if this would qualify as "solving" the issues since those are obviously workarounds.

On sam., nov. 9 2024 at 01:36:06 -05:00:00, Timothy M Butterworth <timothy.m.butterwo...@gmail.com> wrote:


On Sat, Nov 9, 2024 at 12:32 AM AFB <blueadda...@laposte.net <mailto:blueadda...@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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