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Troubleshooting a desktop that does not go into sleep mode/suspend

Hello all, for a few weeks/months now, my computer has stopped going into suspend mode. Here is what happens when putting it to sleep (using GNOME’s power menu) or using systemctl suspend:

  1. Display turns off, peripherals turn off (keyboard lights off etc), fans spin up before sleep as usual
  2. Fans go back to idle speed, computer stays on
  3. Have to press the keyboard, wake the display up and go in the power menu again to suspend it (from the lock screen), and it works every time like this.

I have no idea what could be preventing suspend and what I could find online did not really help a lot. I don’t think it is a USB device because I tried unplugging most of them except my mouse or my keyboard and it still did not work, and the second time on the lock screen it always suspends like intended

  • Distro: Fedora 40
  • DE: Gnome 46
  • GPU: NVIDIA GTX 1080Ti (Wayland)
  • CPU: Intel 10850K
  • MB: Gigabyte Z590 Gaming X (everything is up to date)

thx !

GolfNovemberUniform ,
@GolfNovemberUniform@lemmy.ml avatar

Try switching to X11 first of all.

Telorand ,

Considering I can put my GTX 960M laptop into Sleep Mode while on a Wayland session, that’s not really a solution.

GolfNovemberUniform ,
@GolfNovemberUniform@lemmy.ml avatar

I mean Wayland issues are pretty random and may affect only specific systems.

independantiste OP , (edited )
@independantiste@sh.itjust.works avatar

I think you’re right on this, but i am thinking it’s more of an Nvidia issue rather than a Wayland one… Going to sleep under X11 works the first try, however resuming from sleep showed the following screen (kernel panic? with mentions of Nvidia) https://sh.itjust.works/pictrs/image/8023983c-3e74-477c-b69a-6ff66a8d5918.jpeg

It’s either that or just a black screen. I think this warrants a driver reinstall, I also installed some CUDA stuff so will have to check this out…

zelifcam ,
@zelifcam@lemmy.world avatar

I’d start with looking at what the logs say when the computer fails to sleep.

linuxhandbook.com/journalctl-command/

independantiste OP , (edited )
@independantiste@sh.itjust.works avatar

Running journalctl -r -u systemd-suspend.service does not suggest anything is wrong, just normal status messages. I will try to see if I need a BIOS update, maybe it’s really out of date.

edit yeah current bios is F7c (apr 2022), most recent is F10 (dec 2023). will do that

Edit 2 that didn’t solve it

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