After the recent Plasma 6.2 Beta update my local sddm did not work anymore, which appears to be a problem when X11 was used for presenting sddm.
This is not the session you are logging in, but which display manager sddm will use.
After that issue, we have discussed in the team, if its not time to move forward to use sddm with wayland. After some testing we have decided to implement this.
With the upcoming “cachyos-kde-settings” update, sddm will use wayland to display the login screen.
The change can be found here:
Benefits
There are a bunch of benefits coming with using wayland for sddm.
Its now possible to use the proper Display Setup (Refresh Rate, Resolution and co) in sddm, this can be archived if you go into KDE System Settings → Login Screen (SDDM) → Apply Plasma Settings
Here also a screenshot:
Drawbacks
Some users, with very old NVIDIA cards might have issues using this. But since we anyways do not officially support these, this shouldnt be too much an issue.
We will add in the upcoming days in the wiki an entry how to revert this change and make it persistent.
I have a suspicion that this may have caused a bug for me. After the change, when I login, it takes longer to get to plasma. After plasma loads, in about 10 seconds or so, I will be taken to the sddm login screen again. I discovered sddm launched again, but in tty3, while my running session is in tty2 still.
On a side note, the sddm screen now adheres to the way my monitors have been configured, so no more sideways login screens on the vertically mounted monitor after boot.
I hope it does not introduce issues, but yes, with plasma 6.2 using X11 for sddm seems to introduce more issues, which makes it not even possible to login anymore.
Sorry for double post in another thread, but i just saw this. I have the same issue as @ndowens
I rolled back my system via timeshift to the 11th of September and have no issues anymore.
I’ve switched to kde-unstable as a fix. I noticed there was some kde related updates I believe yesterday, idk if it fixed it or not. I haven’t logged out to try
Updating today, 2024-10-16, and after logging in via SDDM, I experience a long delay, the desktop renders with all blur effects disabled and then crashes to SDDM after approximately 30 seconds. Attempting to login afterwards results in the monitors powering down.
For reference ryzen 7950 and a RTX 4080 super, plasma wayland.
Removing cachyos-kde-settings does not resolve the issue.
Reverted to the timeshift snapshot prior for now.