KDE black screen after logging in with Wayland

X11 seems to work on KDE, but I prefer using Wayland (and it seems that Wayland will be the main compositor soon anyway).

However, I get a black screen when I log into the KDE display manager with Wayland instead of X11. Is there a way to fix this? I’ve tried going to previous snapshots in the boot menu, but they only load infinitely.

EDIT: I’m running this on a Thinkpad X250, by the way.

Hiya. What GPU does your laptop use?

If I remember correctly, it uses Intel Graphics 5500.

That’s weird. Intel has great wayland support. At least I didn’t had any issues with it. Maybe old KDE configs are causing issues? What version of tumbleweed and kernel are you running by the way?

I think it’s the very latest version as I had just installed Tumbleweed/KDE as I made this post.

To confirm that, please show the result of cat /etc/os-release and of uname -r

Create a new user, login on Plasma Wayland as that user and see if the issue persists. If it does, something is wrong systemwise, if not it’s something in your homedir

Not sure how to make a new user from the display manager.

sudo useradd -m user_name

to create the new user with default settings, then

sudo passwd user_name

to set a password for that account.

Seems like a second user works with Wayland.

Try to rename (or backup) the /home/<username>/.config/kdedefaultsdirectory for the affected user.
Or compare it to the one for the “good new user” and adjust accordingly.

Since this is a brand new install, I would remove ~/.config/plasma* from the affected user.

@theweaponizer Did you by any chance mess around with the theming?

Please don’t send screenshots. rather copy from the terminal and paste here as preformatted text ( the </> )Or paste it using susepaste like this
cat /etc/os-release | susepaste and put the returned URL here

I’ve tried removing those directories, but the issue still occurs on that user account.

I didn’t install much, except for the fish shell in YaST and changing the theme to Breeze Dark in the KDE theme settings.

And using X11, I see the black screen as well, but with my trash and home desktop icons, and my cursor that can right click and open the right click menu options as well.

Guess a problem with the Breeze Dark theme? Try reverting to default and test.

Is there a way to do that in the TTY?

Not a regular Plasma user here, but I see that changing from Breeze Light to Breeze Dark changes at least the following files:

~/.config/kdedefaults/package
~/.config/kdedefaults/ksplashrc
~/.config/kdedefaults/kdeglobals

so editing, possibly renaming or deleting them might help.
Since a dozen other files are changed as well, your mileage might vary, but the others seem only relevant to specific apps, so at least login should be fixed.

[EDIT]: or replacing them with those from the working new user, like (from a VT and with the broken user logged in:

cd .config/kdedefaults/
cp /home/<new_user_name>/.config/kdedefaults/package package

and so on.

Okay, so I think all this happened because I changed the KDE theme to Breeze Dark but selected “Desktop and window layout,” which has a warning about what it changes, such as panels, docks, etc.

I didn’t check that box on the new user account when applying the same Breeze Dark theme, and it seems to work for that account at that moment.

I restarted my laptop to see if it would log in successfully, but then that user account also had the same exact problem as before.

I’m wondering if this is just a KDE issue now.

EDIT: The default openSUSE KDE Theme that’s applied by default works fine and has no issues.