● lightdm.service - Light Display Manager
     Loaded: loaded (/lib/systemd/system/lightdm.service; indirect; vendor preset: enabled)
     Active: failed (Result: exit-code) since Tue 2021-03-30 13:19:45 -04; 4min 31s ago
       Docs: man:lightdm(1)
    Process: 823 ExecStartPre=/bin/sh -c [ "$(basename $(cat /etc/X11/default-display-manager 2>/dev/null))" = "lightdm" ] (code=exited, status=0/SUCCESS)
    Process: 826 ExecStart=/usr/sbin/lightdm (code=exited, status=1/FAILURE)
   Main PID: 826 (code=exited, status=1/FAILURE)

mar 30 13:19:45 Nexus-6 systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
mar 30 13:19:45 Nexus-6 systemd[1]: Stopped Light Display Manager.
mar 30 13:19:45 Nexus-6 systemd[1]: lightdm.service: Start request repeated too quickly.
mar 30 13:19:45 Nexus-6 systemd[1]: lightdm.service: Failed with result 'exit-code'.
mar 30 13:19:45 Nexus-6 systemd[1]: Failed to start Light Display Manager.