Re: [ISSUE] [CLOSED] Linux kernel 6.5, 6.6: System not waking up from standby / suspend.

[gc-user <gc-user@users.noreply.github.com>]

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Closed issue by gc-user on void-packages repository

https://github.com/void-linux/void-packages/issues/46427

Description:
### Is this a new report?

Yes

### System Info

Void 6.3.13_2 x86_64 GenuineIntel uptodate hold rrmDDFFFFFFFFF

### Package(s) Affected

linux / linux6.5 / linux6.6 (maybe linux-headers / linux6.5-headers / linux6.6-header)

### Does a report exist for this bug with the project's home (upstream) and/or another distro?
No. All somewhat comparable reports I came across were either reporting that the system doesn't wake just some of the time, or the waking up itself isn't the problem, but the system freezes after waking up.

### Expected behaviour

The system should wake up from standby / suspend when hitting a key on the keyboard or pressing the power button, but it doesn't.
This happened once in a while with previous kernel versions (<= 6.3), but with kernel v6.5 it happens 100% of the time.

Also: I put linux and linux-headers on hold and updated all the other packages that had updates yesterday, including zfs and linux6.3. No issues with waking up the system from standby with those updates. So, it most probably is linux / linux6.5 that's causing the issue.

### Actual behaviour

The system can't be woken up by hitting a key on the keyboard or pressing the power button from standby / suspend. To be more specific, it's the computer not waking up at all (i.e. the led is still showing standby mode) - it's not the computer waking up but showing a black screen, which apparently is another way of "unsuccessful awakening" from standby.

Comparing kernel logs for kernel 6.1, 6.3, 6.4 vs 6.5 and 6.6, I only noticed so far as common to the behavior, that with kernel 6.5 and 6.5 the kernel doesn't acknowledge that suspend has been initiated.


Messages just before going into s3:

kernel v6.1:
[elogind-daemon] Entering sleep state 'suspend'...
[kernel] PM: suspend entry (deep)

kernel v6.3, v6.4:
[elogind-daemon] Suspending system...
[kernel] PM: suspend entry (deep)

kernel v6.5, v6.6:
[elogind-daemon] Entering sleep state 'suspend'...

-> the message "[kernel] PM: suspend entry (deep)" never shows up in logs with kernels v6.5 and v6.6.


### Steps to reproduce

0. linux / linux-headers was upgraded to kernel 6.5 from 6.3 yesterday., with v6.5.5_2 being the current version of the kernel installed.
1. Update linux / linux-headers (or install kernel 6.5 via installing linux6.5 / linux6.5-headers).
2. Reboot to make the system run kernel 6.5.
3. Send the system to standby / suspend.
4. Try to wake the system up from standby / suspend.
5. Notice (probably) nothing happening = the system (probably) not waking up from standby / suspend.

If it is DE dependent: My system runs xfce.