SDDM - ArchWiki - Arch Linux
wiki.archlinux.org › title › SDDMInstall the sddm package. Optionally install sddm-kcm for the KDE Config Module . Follow Display manager#Loading the display manager to start SDDM at boot. Configuration The default configuration file for SDDM can be found at /usr/lib/sddm/sddm.conf.d/default.conf. For any changes, create configuration file (s) in /etc/sddm.conf.d/.