I have had some problems with Kubuntu working well with multimonitor setup. I use X11 so the reason is most likely there, not just Kubuntu's fault. When booting up my PC and ending up in SDDM, I see the login screen in both screens. Bit weird, but fine. I can live with that. However after logging in, my first screen would always reset to 60hz and my second would be 144hz. Saving my first monitor to 144hz and restarting the PC would reset that. I feel like the problem is that the SDDM doesn't ...
