I disabled the dimming because often it would not return it back to 100% for some reason. Dunno. One of those KDE things.
KDE
KDE is an international technology team creating user-friendly free and open source software for desktop and portable computing. KDE’s software runs on GNU/Linux, BSD and other operating systems, including Windows.
Plasma 6 Bugs
If you encounter a bug, proceed to https://bugs.kde.org/, check whether it has been reported.
If it hasn't, report it yourself.
PLEASE THINK CAREFULLY BEFORE POSTING HERE.
Developers do not look for reports on social media, so they will not see it and all it does is clutter up the feed.
What confuses me is that the dimming is set to 70%, not the 20% it comes back at. And only if I leave it overnight or something, not if I just set the timer to 1 minute and test it.
Here are the settings I used to stop this from happening.
I'm having similar. When machine dims the display, it's changing my monitors brightness and doesn't bounce back.
I just realized I was on X11 when I checked logs. I'm going to try it on Wayland (which is what I normally use) and see if it continues.
What I did notice is that changing my Dim settings to 1 minute and letting it take effect to test did not seem to make it happen. It seems like it takes longer, like overnight.
I am on Wayland and have the issue.