Login screen is not working properly

Whenever I restart my computer I am given the base original fedora login and I get an error saying qtgraphicaleffects failed. It looks like it started after I switched to sugar-candy. I switched away from that one to another one but it doesn’t seem to work, and if I don’t reboot, it just goes through the breeze login, but if I reboot I believe it attempts to load sugar-candy again, but I deleted it from my themes.

What’s even weirder is that in my etc/sddm.conf seems to be completely wiped now. It only shows this output since I tried to switch it to utterly-nord:

[Theme]
Current=Utterly-Nord
CursorSize=
CursorTheme=
DisableAvatarsThreshold=7
EnableAvatars=true
FacesDir=/usr/share/sddm/faces
Font=
ThemeDir=/usr/share/sddm/themes

It still doesn’t work, but I don’t really know what to fix. I tried to reinstall plasma-workspace but that doesn’t seem to fix anything either.

3rd party memes are notorious for failing to fully uninstall themselves, which is why it’s good to have working backups before toying with 3rd party widgets, addons, or themes.

## THEMES AND COLORS ##

# a global theme can add items to these settings, but may not remove them all upon uninstall
- Appearance > Global Theme
- Appearance > Plasma Style
- Appearance > Colors
- Appearance > Windows Decorations
- Appearance > Icons
- Appearance > Cursors
- Appearance > Splash Screen
- Startup and Shutdown > SDDM
# need to manually check each settings page, select the red trash can(s) and hit apply

On my fairly vanilla Fedora KDE install, /etc/sddm.conf is an empty file. So you could try removing all the remaining content from that file.

Looks like the same error happens. This file auto generates right? So if I just remove it completely it would come back?

I wasn’t suggesting removing it completely - I was suggesting removing all the content, leaving you with a 0-byte file which is what I have.

Although it is possible that the content would get rewritten from somewhere - not sire.

Right. I guess what I mean is I followed your step, but the issue is still the same, which made me then think what if I deleted the file outright.

Ah, fair enough. You could give it a try! If it doesn’t work then it’s easy enough to recreate an empty file.