I installed a fresh new installation of arch linux just yesterday and everything was fine until I turned on plasma and this happened: https://filebin.net/tz7kktocppnwheyk/1.png?t=muw12z1k
when I was at sddm I saw that my mouse didn't warp correctly between my monitors and because of this I think that sddm doesn't follow my screen settings https://filebin.net/tz7kktocppnwheyk/3.png?t=muw12z1k (look at the arrows)(I can't take screenshots from sddm)
but when I log into plasma the mouse warping becomes correct but my desktop breaks https://filebin.net/tz7kktocppnwheyk/2.png?t=muw12z1k
I don't know what you need to help me so please ask
my screen actual positioning: https://filebin.net/tz7kktocppnwheyk/h1.png?t=muw12z1k
what sddm force it to be: https://filebin.net/tz7kktocppnwheyk/h2.png?t=veehpeb6
OS: arch linux
GPU: Nvidia (yes its drivers are installed)
I tried to mess with my screen settings but didn't help
I hope I can get some support because I can't live with this

Fixed
this site helped me https://blog.victormendonca.com/2018/06/29/how-to-fix-sddm-on-multiple-screens