ubiquity-dm: starting
ubiquity-dm: plymouth
ubiquity-dm: start X ['X', '-br', '-ac', '-noreset', '-nolisten', 'tcp', '-background', 'none', 'vt1', ':0']

X.Org X Server 1.20.1
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-138-generic x86_64 Ubuntu
Current Operating System: Linux xubuntu 4.18.0-10-generic #11-Ubuntu SMP Thu Oct 11 15:13:55 UTC 2018 x86_64
Kernel command line: file=/cdrom/preseed/xubuntu.seed boot=casper initrd=/casper/initrd quiet splash --- maybe-ubiquity
Build Date: 25 October 2018  02:53:34PM
xorg-server 2:1.20.1-3ubuntu2.1 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.34.0
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sun Nov  4 20:06:05 2018
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
resize called 1280 1024
ubiquity-dm: set vars
ubiquity-dm: pam_open_session
ubiquity-dm: dm-scripts
ubiquity-dm: dconf-service
ubiquity-dm: start frontend gtk_ui
No such schema “org.gnome.settings-daemon.plugins.background”
No such schema “org.gnome.metacity”
ubiquity-dm: start greeter
dbus-daemon[1683]: Activating service name='org.a11y.atspi.Registry' requested by ':1.0' (uid=999 pid=1744 comm="xfsettingsd --sm-client-disable " label="unconfined")
dbus-daemon[1683]: Successfully activated service 'org.a11y.atspi.Registry'
SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry

(xfsettingsd:1744): xfsettingsd-WARNING **: 20:06:29.438: Property "/Gdk/WindowScalingFactor" has an unsupported type "guint".

(xfsettingsd:1744): GLib-CRITICAL **: 20:06:30.246: g_str_has_prefix: assertion 'prefix != NULL' failed

(panel:1701): Gtk-WARNING **: 20:06:30.894: Theme parsing error: <data>:6:33: The style property GtkWidget:focus-line-width is deprecated and shouldn't be used anymore. It will be removed in a future version

(panel:1701): Gtk-WARNING **: 20:06:30.894: Theme parsing error: <data>:7:30: The style property GtkWidget:focus-padding is deprecated and shouldn't be used anymore. It will be removed in a future version

(panel:1701): libindicator-WARNING **: 20:06:31.126: File '/usr/lib/indicators3/7/libapplication.so' does not exist.

** (panel:1701): CRITICAL **: 20:06:31.126: load_indicator: assertion 'io != NULL' failed

(panel:1701): Gdk-CRITICAL **: 20:06:31.127: gdk_window_set_geometry_hints: assertion 'geometry != NULL || geom_mask == 0' failed

(xfsettingsd:1744): GLib-GObject-CRITICAL **: 20:06:31.277: g_value_get_string: assertion 'G_VALUE_HOLDS_STRING (value)' failed

(xfsettingsd:1744): GLib-GObject-CRITICAL **: 20:06:31.278: g_value_get_string: assertion 'G_VALUE_HOLDS_STRING (value)' failed
xfsettingsd: No window manager registered on screen 0.

(xfwm4:1678): GLib-CRITICAL **: 20:06:45.084: g_str_has_prefix: assertion 'prefix != NULL' failed

(nm-applet:1702): Gtk-WARNING **: 20:06:46.185: Can't set a parent on widget which has a parent
ubiquity-dm: greeter exited with code 0
No such schema “org.gnome.settings-daemon.plugins.background”
No such schema “org.gnome.metacity”
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
      after 25 requests (25 known processed) with 0 events remaining.
(II) Server terminated successfully (0). Closing log file.
ubiquity-dm: set_locale
Generating locales (this might take a while)...
  en_US.UTF-8... done
Generation complete.
ubiquity-dm: Exiting with code 0

(xfsettingsd:1744): xfsettingsd-WARNING **: 20:07:32.348: Failed to show notification: Sticky keys (Sticky keys are disabled).
Gdk-Message: 20:07:57.371: xfsettingsd: Fatal IO error 25 (Inappropriate ioctl for device) on X server :0.