# journalctl -u gdm

-- Logs begin at Sat 2016-08-06 19:44:42 CEST, end at Sun 2016-08-07 11:35:24 CEST. --
Aug 07 00:35:19 t430s systemd[1]: Stopping GNOME Display Manager...
Aug 07 00:35:19 t430s gdm[690]: Freeing conversation 'gdm-password' with active job
Aug 07 00:35:19 t430s gdm[690]: Tried to look up non-existent conversation gdm-launch-environment
Aug 07 00:35:19 t430s gdm[690]: Freeing conversation 'gdm-launch-environment' with active job
Aug 07 00:35:19 t430s gdm[690]: Failed to contact accountsservice: Error calling StartServiceByName for org.freedesktop.Accounts: GDBus.Error:org.freedesktop.systemd1.ShuttingD
Aug 07 00:35:19 t430s gdm[690]: GLib: g_hash_table_find: assertion 'version == hash_table->version' failed
Aug 07 00:35:19 t430s systemd[1]: Stopped GNOME Display Manager.
-- Reboot --
Aug 07 11:09:02 t430s systemd[1]: Starting GNOME Display Manager...
Aug 07 11:09:02 t430s systemd[1]: Started GNOME Display Manager.
Aug 07 11:10:21 t430s gdm-password][969]: pam_unix(gdm-password:session): session opened for user david by (uid=0)
Aug 07 11:10:22 t430s gdm[793]: GdmDisplay: display lasted 1.160241 seconds
Aug 07 11:10:56 t430s gdm-password][1273]: pam_unix(gdm-password:session): session opened for user david by (uid=0)
Aug 07 11:10:58 t430s gdm[793]: GdmDisplay: display lasted 1.174704 seconds
Aug 07 11:11:21 t430s gdm-password][1618]: pam_unix(gdm-password:session): session opened for user david by (uid=0)