Hello Linux community,
I need some help with shutting down my laptop when the battery reaches a low percentage.
I am using Debian 12 with the GNOME desktop. WARNING: Minimal installation with self selected packages.
What I want to achieve is, that the laptop just does a ‘halt -p’ or shuts itself down when the battery is below 20%.
What I did so far:
- Look into GNOME settings in the power settings area and I found nothing helpful
- I edited /etc/Upower/UPower.conf with my settings and changed the CriticalPowerAction to PowerOff, ensured the upower daemon is running via systemctl status and rebooted. The result was that I get a warning popup message in GNOME when the battery load reaches 21%, but it does not shutdown the laptop at 20% or under 20%, although I get another pop up announcing that the laptop would be shutdown
- I ensured laptop-mode-tools and gnome-power-manager settings are installed
Any help/pointers for further help would be highly appreciated.
Answer is here, it was posted the other day: https://lemmy.ml/post/20903038 Instead of beeping as that script does, you shut the PC down.
ArchWiki: Hibernate on low battery level
This approach uses udev, so you don’t have to constantly check the battery level by yourself.
A bash script that checks the battery and if its below X runs shutdown -now ?
Then run it every minute with cron.
It’s not very elegant but it would work.
Thanks, that would be a valid approach and my last resort.
As you said, I hope someone knows a more elegant solution, though!
