17
Try sudo systemd-inhibit --list
Thanks! This is what I'm getting here. If I understand this correctly, this is a list of POSSIBLE inhibitors...not which one was triggered last time blocking the actual suspension right?
WHO UID USER PID COMM WHAT WHY >
Libvirt 0 root 77709 libvirtd shutdown Virtual machines need to be saved >
ModemManager 0 root 1183 ModemManager sleep ModemManager needs to reset devices >
NetworkManager 0 root 1087 NetworkManager sleep NetworkManager needs to turn off networks >
UPower 0 root 1896 upowerd sleep Pause device polling >
PowerDevil 1000 timonoj 2165 org_kde_powerde handle-power-key:handle-suspend-key:handle-hibernate-key:handle-lid-switch KDE handles power events >
Screen Locker 1000 timonoj 1878 kwin_wayland sleep Ensuring that the screen gets locked before going to sleep>
6 inhibitors listed.
lines 1-9/9 (END)
Having a second thought about this, it looks like Screen Locker might be the culprit. But I'm not completely sure. I really could see the desktop wasn't even locked after a whole night. So maybe it failed to trigger? How can I look at...what's inhibiting the screen from locking, now? Just like suspension, it works when manually triggered with Meta key + L.
Is there no reason to suspect your vm states are the cause?
Sure, I could suspect it...but how can I try to troubleshoot it? Is there a way to see what blocks the desktop from locking the screen?
You could shut down your vm service temporarily and see if it works.
To clarify, systemctl stop libvirtd should do it.
Steam often does it for me. But it should tell you what's doing it in the task tray icon bar somewhere (not near a computer at the moment, so I can't be specific)
I had a bug similar to this for years. I tried multiple distros, DEs, hdmi cables, display port cables, etc etc. I didn't want suspend, but I really need screen blanking. I finally had a revelation deep in some forum somewhere that mentioned some feature on my monitor. I forget what it was exactly, but it was an 'auto' something that prevented the computer itself from doing anything.
Odd, but possible.
i had the autosuspend issue with mint. tried to troubleshoot it for two years. every now and then i thought i found the solution, but weeks or months later the issue reappeared, and i swear i started balding because of that shit! thought it might be because I'm using a tv as a monitor, but other distros didn't have the same issue, they just had much worse issues. recently tossed my nvidia and got an amd gpu, switched to ultramarine kde. I'm living with a lot of minor bugs now, but it suspends! funny thing is that mint didn't recognize the tv after waking from suspend after switching to amd...
this post was submitted on 13 Dec 2025
17 points (100.0% liked)
Linux
57274 readers
957 users here now
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 6 years ago
MODERATORS