According to this discussion, you can apply your Wayland settings to SDDM from the system settings.
Edit: Although some users reporting issues with it, but worth a try.
According to this discussion, you can apply your Wayland settings to SDDM from the system settings.
Edit: Although some users reporting issues with it, but worth a try.
In theory it should be on all monitors. At least on mine, all 3 monitors display the login screen and any of them can be used to input the password.
You can edit the settings from KDE's settings to copy the KWin monitor configuration to it, you probably want to set the primary display.
The prompt screen is the same on both monitors. But the typing cursor is in the password box on the secondary monitor.
I had a go at setting the kwin primary using another method but I'll have a look at copying the settings across like you said.
If just follows the cursor so if you move the mouse to another screen you can also input your password there.
The only difference is which one the mouse cursor is on initially.
Interesting. That's not what happens on mine. I have to actually click into the password box on the primary screen if I want to use that one. Password entry works on both screens so doesn't really matter which I use, it is just a cosmetic thing that bothers me.
For me it has always just defaulted to the left-most monitor. I had a script that would disable that monitor with xrandr when sddm loaded and then re-enable it on logon, but I couldn't get something similar working in Wayland.
SDDM seems to be severely underdeveloped. It doesn't seem to get nearly as much love as the rest of KDE. You might consider switching to GDM or another display manager that does what you want. You can be happy that your HDMI monitor is not mirrored smaller on your ultrawide.
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