Should have went to Odysee or Rumble. Youtube is anti user.
This was happening for me as well ever since updating yesterday. Caused consistent spikes on random cpu cores to ~75% usage on that core every couple of seconds. It would cause slight visual stutters in most programs when it happened. Running killall org_kde_powerdevil would fix it temporarily but it would return on reboot.
The fix in the video by @attishno1 worked perfectly for me. I didn’t notice it affecting startup times, but I didn’t really measure the difference.
The fix is changing these two variables in /etc/xdg/autostart/powerdevil.desktop
Old:
X-systemd-skip=true
X-KDE-autostart-phase=0
Change them to:
X-systemd-skip=false
X-KDE-autostart-phase=1
Looks like there is an open bug report here: https://bugs.kde.org/show_bug.cgi?id=476375
I am glad it worked. There is a minor delay, but it is hard to notice. I noticed it because I was using a custom Splash that had a loading bar on it. By the way, this problem can still occur even after the fix.
I once logged out and then back in, and it started again. I have since then switched to Cinnamon.
Oof, thanks for the heads up on it not always working, I’ll have to keep an eye on it and hope for a fix 
This topic was automatically closed 2 days after the last reply. New replies are no longer allowed.