Skip to main content

[Question] How can I dim screen after 20s inactivity when running on battery? tlp/sway/arch/chromebook
I think this could save me some battery time.
I checked tlp but could not find anything related.
In Sway config with swayidle maybe?
All help appreciated.

corsicanguppy doesn't like this.

in reply to rkk

Justine Smithies
Justine Smithies
• •
You could use swayidle and add a line to use either light or brightnessctl to dim and restore the brightness. Or just as I do turn off display after a certain time. This link should give you an idea.
https://wiki.archlinux.org/title/Sway#Idle
in reply to Justine Smithies

rkk
rkk
• •
Brightnessctl is installed and works just need a way to read whether is on ac or battery.
in reply to rkk

eshep
eshep
•
Should be able to read it from /sys/devices/ or with upower.

Linux reshared this.

in reply to rkk

Ann Onymous
Ann Onymous
• •
Are you running arch on the metal or through crostini/crouton? The second option probably will only respect chromeos' power management settings, but you may be able to flash a full uefi payload and get rid of chromeos completely with https://mrchromebox.tech/#fwscript
⇧