You could check if powerdevil is installed, also the applet won’t re-check if the requirements are fulfilled so you have to restart plasma and maybe even the whole PC
Obviously powerdevil is installed, hence the service, unless I am getting something wrong. I have restarted multiple times.
Switching to tuneD worked! Thank you so much!
Here's what I did, from here. I've slightly modified the commands since that guide is from when tuneD was still on the AUR.
1. Uninstall power-profiles-daemon
sudo pacman -Rns power-profiles-daemon2. Check that power-profiles-daemon.service is gone
systemctl status power-profiles-daemonThe output should be :
Unit power-profiles-daemon.service could not be found.3. Install tuneD:
sudo pacman -S tuned4. Enable and start tuneD:
systemctl enable tuned systemctl start tuned5. Check that tuneD is running correctly:
● tuned.service - Dynamic System Tuning Daemon Loaded: loaded (/usr/lib/systemd/system/tuned.service; enabled; preset: disabled) Active: active (running) ....6. Check the active profile:
tuned-adm activeNow, you can use
tuned-admto switch to profiles, but since I am using a DE, I won't be doing that. Now reboot and the power profile slider should be working!