This is still logged on a fully updated bionic (with 'proposed' archive enabled)
oem@ubuntu:~$ journalctl -b | grep Mutter
Mar 25 07:30:27 ubuntu gsd-xsettings[1505]: Failed to get current display configuration state: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.gnome.Mutter.DisplayConfig" does not exist
This is still logged on a fully updated bionic (with 'proposed' archive enabled)
oem@ubuntu:~$ journalctl -b | grep Mutter 1505]: Failed to get current display configuration state: GDBus.Error: org.freedesktop .DBus.Error. NameHasNoOwner: Name "org.gnome. Mutter. DisplayConfig" does not exist
Mar 25 07:30:27 ubuntu gsd-xsettings[