Installed sddm proposed sddm proposed 0.20.0-2ubuntu4.1 and the issue persists, but adding the changes shown in https://github.com/sddm/sddm/pull/1924/files to sddm.service file the issue is fixed.
Installed sddm proposed sddm proposed 0.20.0-2ubuntu4.1 and the issue persists, but adding the changes shown in https:/ /github. com/sddm/ sddm/pull/ 1924/files to sddm.service file the issue is fixed.