Mar 19 22:55:47 johan systemd[1]: Started Modem Manager.
Mar 19 22:55:47 johan dbus-daemon[696]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.16' (uid=0 pid=714 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Mar 19 22:55:47 johan dbus-daemon[696]: [system] Activating via systemd: service name='org.freedesktop.login1' unit='dbus-org.freedesktop.login1.service' requested by ':1.8' (uid=0 pid=719 comm="/usr/bin/pantheon-parental-controls-daemon " label="unconfined")
Mar 19 22:55:48 johan avahi-daemon[688]: Server startup complete. Host name is johan.local. Local service cookie is 749148224.
Mar 19 22:55:50 johan ModemManager[685]: <info>  Couldn't check support for device at '/sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0': not supported by any plugin
Mar 19 22:55:53 johan set-cpufreq[658]: Setting powersave scheduler for all CPUs
Mar 19 22:56:13 johan ModemManager[685]: <info>  Creating modem with plugin 'Generic' and '1' ports
Mar 19 22:56:13 johan NetworkManager[714]: <info>  [1553032572.7947] hostname: hostname: hostnamed not used as proxy creation failed with: Error calling StartServiceByName for org.freedesktop.hostname1: Timeout was reached
Mar 19 22:56:13 johan ModemManager[685]: <warn>  Could not grab port (tty/ttyS4): 'Cannot add port 'tty/ttyS4', unhandled serial type'