I got it working by editing this file /usr/share/sddm/scripts/Xsetup
Added: setxkbmap XX
XX are your keyboard layout code can list availables with: localectl list-keymaps
I got it working by editing this file /usr/share/ sddm/scripts/ Xsetup
Added: setxkbmap XX
XX are your keyboard layout code can list availables with: localectl list-keymaps