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

X.Org X Server 1.20.8
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-184-generic x86_64 Ubuntu
Current Operating System: Linux xubuntu 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64
Kernel command line: file=/cdrom/preseed/xubuntu.seed boot=casper initrd=/casper/initrd quiet splash --- maybe-ubiquity
Build Date: 03 July 2020  07:00:25AM
xorg-server-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.1 (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: Wed Aug 12 05:59:07 2020
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
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

(xfwm4:1503): GLib-CRITICAL **: 05:59:10.899: g_str_has_prefix: assertion 'prefix != NULL' failed
dbus-daemon[1508]: Activating service name='org.a11y.atspi.Registry' requested by ':1.0' (uid=999 pid=1511 comm="/usr/lib/ubiquity/panel " label="unconfined")
dbus-daemon[1508]: Successfully activated service 'org.a11y.atspi.Registry'
SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry

(xfsettingsd:1533): GLib-CRITICAL **: 05:59:11.137: g_str_has_prefix: assertion 'prefix != NULL' failed

(xfsettingsd:1533): GLib-GObject-CRITICAL **: 05:59:11.142: g_value_get_string: assertion 'G_VALUE_HOLDS_STRING (value)' failed

(xfsettingsd:1533): GLib-GObject-CRITICAL **: 05:59:11.143: g_value_get_string: assertion 'G_VALUE_HOLDS_STRING (value)' failed

(panel:1511): Gtk-WARNING **: 05:59:11.181: 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:1511): Gtk-WARNING **: 05:59:11.181: 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:1511): libindicator-WARNING **: 05:59:11.183: File '/usr/lib/indicators3/7/libapplication.so' does not exist.

** (panel:1511): CRITICAL **: 05:59:11.183: load_indicator: assertion 'io != NULL' failed

(panel:1511): Gdk-CRITICAL **: 05:59:11.203: gdk_window_set_geometry_hints: assertion 'geometry != NULL || geom_mask == 0' failed

(nm-applet:1512): Gtk-WARNING **: 05:59:11.495: Can't set a parent on widget which has a parent

(nm-applet:1512): Gtk-CRITICAL **: 05:59:20.881: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-CRITICAL **: 05:59:20.881: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-WARNING **: 05:59:20.890: Can't set a parent on widget which has a parent

(nm-applet:1512): Gtk-CRITICAL **: 05:59:20.896: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-CRITICAL **: 05:59:20.896: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-WARNING **: 05:59:20.900: Can't set a parent on widget which has a parent

(nm-applet:1512): libnotify-WARNING **: 05:59:45.928: Failed to connect to proxy

(nm-applet:1512): nm-applet-WARNING **: 06:00:10.947: Failed to show notification: Error calling StartServiceByName for org.freedesktop.Notifications: Timeout was reached

(nm-applet:1512): Gtk-CRITICAL **: 06:00:10.957: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-CRITICAL **: 06:00:10.957: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-WARNING **: 06:00:10.960: Can't set a parent on widget which has a parent

(nm-applet:1512): Gtk-CRITICAL **: 06:00:10.961: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-CRITICAL **: 06:00:10.961: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(nm-applet:1512): Gtk-WARNING **: 06:00:10.963: Can't set a parent on widget which has a parent
Failed to connect to session manager: Failed to connect to the session manager: SESSION_MANAGER environment variable not defined