SSDM scaling and wayland


I just bought a 4k monitor. In system I use wayland and 200% scaling. How can I apply this scaling to the SSDM?


KDE Settings → Login screen (SDDM)
and “Apply Plasma Setting…” (at the top).
I have only 2k monitors set to 125% so I’m not totally sure but I think it worked for me, at least “Scaling DPI” is listed as a reflected Plasma setting if applied there.

I tried but doesn’t change anything. The scale of SDDM remains the same…