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Fails to wake up from suspension almost always...

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David404
Excalibur

The question has been closed for reason: Closed due to inactive post for over 30 days

on 01/29/2026 04:47:43

So usually the laptop enters the sleep/suspension state but is unable to return back from it. Sometimes when I look the screen and close the lid it returns as you can see in the first log. However this behavior doesn't happen always and I can't track what I did differently. I've also toggled between the sleep modes available (i.e. s2idle, shallow and deep) being s2idle the only one avaialble and the one that the majority of times it doesn't return from.

Note: I've noticed that when it goes to sleep after pressing the power button once, the keyboard backlight seems to start working but only that... The capslock does not.

Logs from systemd-suspend on an Archlinux installation:

Dec 28 22:27:35 slimbook systemd[1]: Starting System Suspend...
Dec 28 22:27:35 slimbook systemd-sleep[216849]: Successfully froze unit 'user.slice'.
Dec 28 22:27:36 slimbook systemd-sleep[216849]: Performing sleep operation 'suspend'...
Dec 28 22:36:20 slimbook systemd-sleep[216849]: System returned from sleep operation 'suspend'.
Dec 28 22:36:20 slimbook systemd-sleep[216849]: Successfully thawed unit 'user.slice'.
Dec 28 22:36:20 slimbook systemd[1]: systemd-suspend.service: Deactivated successfully.
Dec 28 22:36:20 slimbook systemd[1]: Finished System Suspend.
-- Boot efe520d9e4f94a3ea0c36cac739f32c4 --
Dec 29 03:30:58 slimbook systemd[1]: Starting System Suspend...
Dec 29 03:30:58 slimbook systemd-sleep[1951]: Successfully froze unit 'user.slice'.
Dec 29 03:30:58 slimbook systemd-sleep[1951]: Performing sleep operation 'suspend'...
-- Boot f96bc8b97e764ac5be17b99d8155ef5b --
Dec 29 03:41:18 slimbook systemd[1]: Starting System Suspend...
Dec 29 03:41:18 slimbook systemd-sleep[6974]: Successfully froze unit 'user.slice'.
Dec 29 03:41:18 slimbook systemd-sleep[6974]: Performing sleep operation 'suspend'...
-- Boot b57bf5ea9a6042faab0a3aa40d90e07e --
Dec 29 03:42:32 slimbook systemd[1]: Starting System Suspend...
Dec 29 03:42:32 slimbook systemd-sleep[1597]: Successfully froze unit 'user.slice'.
Dec 29 03:42:32 slimbook systemd-sleep[1597]: Performing sleep operation 'suspend'...
-- Boot 12bf593b33e64f06bca4e6eabf0aa8f0 --
Dec 29 03:57:27 slimbook systemd[1]: Starting System Suspend...
Dec 29 03:57:27 slimbook systemd-sleep[2213]: Successfully froze unit 'user.slice'.
Dec 29 03:57:27 slimbook systemd-sleep[2213]: Performing sleep operation 'suspend'...
-- Boot 32ae073ead5c40ee88e6d5e579be9468 --
Dec 29 14:13:29 slimbook systemd[1]: Starting System Suspend...
Dec 29 14:13:29 slimbook systemd-sleep[7019]: Successfully froze unit 'user.slice'.
Dec 29 14:13:29 slimbook systemd-sleep[7019]: Performing sleep operation 'suspend'...
-- Boot ef4cdd5defc94847a5f16aec3da07591 --
Dec 29 14:15:07 slimbook systemd[1]: Starting System Suspend...
Dec 29 14:15:07 slimbook systemd-sleep[1877]: Successfully froze unit 'user.slice'.
Dec 29 14:15:07 slimbook systemd-sleep[1877]: Performing sleep operation 'suspend'...


Thank you for the attention, and I am available to provide any additional information that leads to the problem being solved.

Excalibur 16 AMD Ryzen AI9 365 Blue
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4 Answers
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David404
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Good afternoon,
Do you have the meta-package for your Excalibur? There's some fixes needed for this specific laptop that the meta-package comes with: `slimbook-meta-excalibur`
The package is intended for systems with GRUB bootloader, if your installation doesn't have GRUB you can try with `amd_iommu=off` kernel parameter and check if the suspend problems still persist.

Regards, 

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David404
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Hi Samanta, thanks for the swift answer. I am indeed not using grub but systemd-boot instead the solution worked like a charm. You  said the meta package is intead for systems with grub. However you also said that that the meta-package fixes some issues (plural) so should I install it anyway does it address non-boot related issues?

Whilst on the subject, I researched a bit about your suggestion and found that: "The main implication is that you lose the ability to pass PCIe devices to VMs" from this ubuntu forum: https://askubuntu.com/questions/1552302/implications-of-setting-amd-iommu-off is this a real issue is there another alternative?

Best Regards

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David404
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Hello,
All fixes from the meta-package, that we provide, are GRUB specific, I link you to the package itself from OBS as well as the tutorial showing which specific packages you need from this laptop

`amd_iommu=off`and `amdgpu.dcdebugmask=0x610` are needed for this laptop. PSR is buggy and fixes random display issues like freezes and artifacts, so disabling it is recommended to prevent this. And `amd_iommu=off` mitigates that issue
A side-effect of disabling IOMMU, sadly, is that PCIe passthrough is disabled with this. 
From our research it was the only kernel parameter that fixed this issue

If you do need PCIe passthrough to VMs, you must prescind from suspending the device, at least until a new way to fix suspend issues without disabling PCIe gets found.

Regards,

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David404
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Hello again, understood I'll apply those two kernels parameters you told and I will look into those packages before asking any further questions, thanks for all the help! 😄

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