systemctl status gdm

* gdm.service - GNOME Display Manager
   Loaded: loaded (/usr/lib/systemd/system/gdm.service; enabled; vendor preset: disabled)
   Active: active (running) since Tue 2018-11-27 12:23:45 AEST; 2h 15min ago
 Main PID: 345 (gdm)
    Tasks: 3 (limit: 4915)
   Memory: 9.2M
   CGroup: /system.slice/gdm.service
           `-345 /usr/bin/gdm

Nov 27 12:23:45 STCArch systemd[1]: Started GNOME Display Manager.
Nov 27 12:23:45 STCArch gdm-launch-environment][367]: accountsservice: Could not get current seat: No data available
Nov 27 12:23:46 STCArch gdm[345]: GdmDisplay: display lasted 0.957630 seconds
Nov 27 12:23:46 STCArch gdm[345]: Child process -382 was already dead.
Nov 27 12:23:46 STCArch gdm[345]: Child process -382 was already dead.
Nov 27 12:23:46 STCArch gdm-launch-environment][409]: accountsservice: Could not get current seat: No data available
Nov 27 12:23:55 STCArch gdm-password][637]: accountsservice: Could not get current seat: No data available
Nov 27 12:24:04 STCArch gdm-password][637]: pam_unix(gdm-password:session): session opened for user sebtecsecure by (uid=0)
Nov 27 12:37:52 STCArch gdm-password][1165]: accountsservice: Could not get current seat: No data available
Nov 27 12:37:57 STCArch gdm-password][1165]: pam_unix(gdm-password:session): session opened for user root by (uid=0)