SDDM troubles in plasma 6

[penguinrapper]

After upgrading my tumbleweed install to plasma 6 sddm is having a lot of trouble at first at was giving me a black screen and i could not login after a couple of reboot it lets me login in but the theme is all wrong and it gives me the following error ,Any idea how can i fix this

[penguinrapper]

Also the option for sddm in system settings is also gone

[Aboutduck]

I think you might be interested by this thread

SDDM Theme broken after update to Plasma 6 with no way to change it back?

Hello, after upgrading to KDE Plasma 6, my SDDM theme no longer works. I was using a custom theme, which probably isn’t compatible with KDE Plasma 6. That’s okay, I could just change it back to the default breeze theme, but there is no SDDM setting in plasma settings like it used to in Plasma 5. What can I do to fix SDDM? Here is the error message, though it’s probably not necessary for what I need help with: The current theme cannot be loaded due to the errors below, please select another th…

[Tuner]

I haven’t had the black screen problem, but you’re not alone re not seeing sddm in system settings.

https://bugzilla.suse.com/show_bug.cgi?id=1221474

[deano_ferrari]

Show us your current SDDM configuration. Do this from a VT…

cat /etc/sddm.conf.d/*

I would remove any custom theme entries. In fact rename any existing config file you have there and restart the display manager…

systemctl restart display-manger.service

Do you get a working graphical login?

[penguinrapper]

output of cat /etc/sddm.conf.d/*

[Autologin]
Relogin=false
Session=default.desktop
User=

[General]
HaltCommand=
RebootCommand=

[Theme]
Current=Layan
CursorSize=48
CursorTheme=miku-cursor-linux
Font=IosevkaTerm Nerd Font Mono,10,-1,5,75,0,0,0,0,0,Bold

[Users]
MaximumUid=60000
MinimumUid=1000

[X11]
ServerArguments=-dpi 0

after following your advice i have a working graphical login and the errors are gone thanks but can i change my sddm theme it current has the default theme.

[deano_ferrari]

Good to know the graphical login is back to a working state. Yes, you should be able to choose one the available themes.

[fuscop]

I found sddm-conf in YaST Software Management. It is a C++ GUI interface allowing changes to the kde_settings.conf file. It didn’t add it to System Settings, but it shows up as a standalone program under my System menu.

[penguinrapper]

if i change the sddm theme using sddm-conf i get the following error

[penguinrapper]

i dont have the sddm settings option in the system settings and if i try to change the theme using sddm-conf It is a C++ GUI interface allowing changes to the kde_settings.conf file it gives the following error

[hui]

You are using an incompatible theme. Layan is not maintained at all and did not recieve any adjustments for Plasma 6…

@penguinrapper

i dont have the sddm settings option in the system settings

This is also expected as sddm-kcm6 did not pass security audits and is not available for openSUSE Plasma 6 yet until this issue is solved.

[penguinrapper]

thanks man i just changed the theme to Catppuccin Mocha and now it works.

[penguinrapper]

Ok so i will just wait for it as after a reboot the sddm theme changes to deafult if it set is using the sddm-conf.

[hui]

sddm-kcm6 got the security clearing and is available as update. this brings back the SDDM setting in systemsettings.

[Tuner]

It’s back for me. System Settings → Colors & Themes → Login Screen (SDDM) has returned in snapshot 20240315.

[penguinrapper]

i updated my system to the latest snapshot but it did not installed sddm-kcm6 i had to do it manually, now i have the sddm settings option but if i change the theme at login i get the following error

[penguinrapper]

It was not back for me i updated my system to the latest snapshot but it did not installed sddm-kcm6 i had to do it manually, now i have the sddm settings option but if i change the theme at login i get the following error any idea on how to fix this

Library import requires a version

[deano_ferrari]

I had that installed already, but maybe because I’m using Leap with the KDE repos?

[dth2]

Thanks for the heads-up Hui - i had not realised that the sddm module was available again.