root@Sidney ~ # systemctl status sddm
* sddm.service - Simple Desktop Display Manager
   Loaded: loaded (/usr/lib/systemd/system/sddm.service; enabled; vendor preset: enabled)
   Active: active (running) since Mon 2018-03-19 19:13:28 EDT; 8min ago
     Docs: man:sddm(1)
           man:sddm.conf(5)
 Main PID: 834 (sddm)
   CGroup: /system.slice/sddm.service
           |-834 /usr/bin/sddm
           `-876 /usr/libexec/Xorg -nolisten tcp -auth /var/run/sddm/{b3bffaac-23e3-40e1-b5bb-fbe5cf3e9f42} -background none -noreset -displayfd 20 -seat seat0 vt1

Mar 19 19:13:40 Sidney sddm[834]: Session "/usr/share/xsessions/plasma.desktop" selected, command: "/usr/bin/startkde"
Mar 19 19:13:40 Sidney sddm-helper[910]: [PAM] Starting...
Mar 19 19:13:40 Sidney sddm-helper[910]: [PAM] Authenticating...
Mar 19 19:13:40 Sidney sddm-helper[910]: [PAM] Preparing to converse...
Mar 19 19:13:40 Sidney sddm-helper[910]: [PAM] Conversation with 1 messages
Mar 19 19:13:40 Sidney sddm-helper[910]: [PAM] returning.
Mar 19 19:13:40 Sidney sddm[834]: Authenticated successfully
Mar 19 19:13:40 Sidney sddm[834]: Auth: sddm-helper exited successfully
Mar 19 19:13:40 Sidney sddm[834]: Greeter stopped.
Mar 19 19:13:40 Sidney sddm[834]: Session started