Eu acessei o /var/log/syslog desta máquina e ele é uma repetição das linhas que estão mostradas logo abaixo:
Feb 17 10:17:50 StanLee systemd[8346]: Reached target Main User Target.
Feb 17 10:17:50 StanLee systemd[8346]: Startup finished in 1.433s.
Feb 17 10:17:52 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Activating via systemd: service name='org.gtk.vfs.Metadata' unit='gvfs-metadata.service' requested by ':1.2' (uid=1000 pid=8355 comm="/usr/libexec/tracker-extract " label="unconfined")
Feb 17 10:17:52 StanLee systemd[8346]: Starting Virtual filesystem metadata service...
Feb 17 10:17:52 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Successfully activated service 'org.gtk.vfs.Metadata'
Feb 17 10:17:52 StanLee systemd[8346]: Started Virtual filesystem metadata service.
Feb 17 10:18:11 StanLee systemd[8346]: tracker-extract.service: Succeeded.
Feb 17 10:18:15 StanLee pulseaudio[8354]: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
Feb 17 10:18:31 StanLee tracker-store[8512]: OK
Feb 17 10:18:31 StanLee systemd[8346]: tracker-store.service: Succeeded.
Feb 17 10:19:03 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Activating via systemd: service name='org.freedesktop.Tracker1' unit='tracker-store.service' requested by ':1.1' (uid=1000 pid=8356 comm="/usr/libexec/tracker-miner-fs " label="unconfined")
Feb 17 10:19:03 StanLee systemd[8346]: Starting Tracker metadata database store and lookup manager...
Feb 17 10:19:03 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Successfully activated service 'org.freedesktop.Tracker1'
Feb 17 10:19:03 StanLee systemd[8346]: Started Tracker metadata database store and lookup manager.
Feb 17 10:19:48 StanLee tracker-store[8547]: OK
Feb 17 10:19:48 StanLee systemd[8346]: tracker-store.service: Succeeded.
Feb 17 10:20:24 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Activating via systemd: service name='org.freedesktop.Tracker1' unit='tracker-store.service' requested by ':1.1' (uid=1000 pid=8356 comm="/usr/libexec/tracker-miner-fs " label="unconfined")
Feb 17 10:20:24 StanLee systemd[8346]: Starting Tracker metadata database store and lookup manager...
Feb 17 10:20:24 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Successfully activated service 'org.freedesktop.Tracker1'
Feb 17 10:20:24 StanLee systemd[8346]: Started Tracker metadata database store and lookup manager.
Feb 17 10:20:54 StanLee tracker-store[8555]: OK
Feb 17 10:20:54 StanLee systemd[8346]: tracker-store.service: Succeeded.
Feb 17 10:21:02 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Activating via systemd: service name='org.freedesktop.Tracker1' unit='tracker-store.service' requested by ':1.1' (uid=1000 pid=8356 comm="/usr/libexec/tracker-miner-fs " label="unconfined")
Feb 17 10:21:02 StanLee systemd[8346]: Starting Tracker metadata database store and lookup manager...
Feb 17 10:21:02 StanLee dbus-daemon[8362]: [session uid=1000 pid=8362] Successfully activated service 'org.freedesktop.Tracker1'
Feb 17 10:21:02 StanLee systemd[8346]: Started Tracker metadata database store and lookup manager.
Não estou familiarizado co mesta saída, mas parece ter algumas mensagens de error de coneção de rede, várias repetições informando "Started Virtual filesystem service ..." e este log tem 794 linhas, com várias ocorrências a cada hora.
Realmente eu não sei o problema.
Mas já agradeço a ajuda em rastrear o problema.