[ISSUE] Attempting to suspend on Wayland+KDE+nVidia breaks system completely

[ISSUE] Attempting to suspend on Wayland+KDE+nVidia breaks system completely

[z411]

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New issue by z411 on void-packages repository

https://github.com/void-linux/void-packages/issues/46161

Description:
### Is this a new report?

Yes

### System Info

Void 6.3.13_1 x86_64 AuthenticAMD uptodate rrrrmmnFFFFF

### Package(s) Affected

kwin-5.27.7_1, nvidia-535.104.05_1

### Does a report exist for this bug with the project's home (upstream) and/or another distro?

_No response_

### Expected behaviour

When clicking sleep the system should suspend.

### Actual behaviour

When clicking sleep nothing happens, the screen just gets locked.
Instead, the system keeps working but it starts behaving strangely:

1. Firefox stops being able to open new pages or tabs; it seems that the backend of the browser hangs completely.
2. Screen starts freezing randomly for ~15 seconds then unfreezing
3. KDE System settings doesn't start
4. Nothing happens when attempting to change TTY with CTRL+Fn keys
5. Attempting to log out through the GUI freezes the plasma shell
6. Attempting to log out by killing all user processes (`pkill -9 -U 1000`) freezes the system
7. Attempting to reboot with the `reboot` command actually suspends the system (!)

This works normally in Debian+Wayland (I think it has some nvidia-suspend systemd services that might be required?).
It also works normally in Void+Xorg.

### Steps to reproduce

1. Open KDE system menu
2. Click "Sleep"
3. Observe the system start behaving strangely instead of going to sleep

Re: Attempting to suspend on Wayland+KDE+nVidia breaks system completely

[CuriousApe2020]

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New comment by CuriousApe2020 on void-packages repository

https://github.com/void-linux/void-packages/issues/46161#issuecomment-1802653856

Comment:
I think my problem https://github.com/void-linux/void-packages/issues/47125 might have the same root cause?

Re: Attempting to suspend on Wayland+KDE+nVidia breaks system completely

[z411]

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New comment by z411 on void-packages repository

https://github.com/void-linux/void-packages/issues/46161#issuecomment-1805131729

Comment:
> I think my problem #47125 might have the same root cause?

It definitely sounds similar. KDE also shows the lock screen when attempting to sleep (it doesn't sleep, it just shows the lock screen), but after entering the password, the lock screen clears and it starts showing the strange behavior described above.

Re: Attempting to suspend on Wayland+KDE+nVidia breaks system completely

[m3tav3rse]

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New comment by m3tav3rse on void-packages repository

https://github.com/void-linux/void-packages/issues/46161#issuecomment-1819253578

Comment:
Duplicate of #47125

Re: Attempting to suspend on Wayland+KDE+nVidia breaks system completely

[z411]

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New comment by z411 on void-packages repository

https://github.com/void-linux/void-packages/issues/46161#issuecomment-1840789214

Comment:
Thank you, it seems the patch posted in https://github.com/elogind/elogind/issues/234 fixes it for me.