Same thing has happened to me. It was preceded by my session crashing and this being logged.
"gnome-terminal-[2466]: Error reading events from display: Broken pipe update-notifier[2408]: Error reading events from display: Broken pipe indicator-cpufr[1937]: Error reading events from display: Broken pipe telepathy-indic[2052]: Error reading events from display: Broken pipe systemd[1513]: gnome-terminal-server.service: Main process exited, code=exited, status=1/FAILURE systemd[1513]: gnome-terminal-server.service: Unit entered failed state. systemd[1513]: gnome-terminal-server.service: Failed with result 'exit-code'. org.gnome.Shell.desktop[1638]: (EE) org.gnome.Shell.desktop[1638]: Fatal server error: org.gnome.Shell.desktop[1638]: (EE) failed to read Wayland events: Connection reset by peer " -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1728383 Title: Unable to create a DBus proxy for GnomeScreensaver Status in gnome-session package in Ubuntu: Confirmed Bug description: Ubuntu 17.10, error on boot: gnome-session-b: CRITICAL: Unable to create a DBus proxy for GnomeScreensaver: Error calling StartServiceByName for org.gnome.ScreenSaver: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.gnome.ScreenSaver exited with status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1728383/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
