ubuntu@ubuntu:~$ tail -f /var/log/installer/dm
(panel:2083): Gtk-CRITICAL **: gtk_widget_remove_accelerator: assertion 'GTK_IS_ACCEL_GROUP (accel_group)' failed
ubiquity-dm: greeter exited with code 0
nm-applet-Message: PID 1987 (we are 2105) sent signal 15, shutting down...

(process:2086): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
      after 21 requests (21 known processed) with 0 events remaining.
(EE) Server terminated successfully (0). Closing log file.
ubiquity-dm: set_locale
ubiquity-dm: Exiting with code 0