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

X.Org X Server 1.20.5
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-165-generic x86_64 Ubuntu
Current Operating System: Linux ubuntu-studio 5.3.0-18-lowlatency #19-Ubuntu SMP PREEMPT Tue Oct 8 20:57:07 UTC 2019 x86_64
Kernel command line: file=/cdrom/preseed/ubuntustudio.seed only-ubiquity initrd=/casper/initrd quiet splash ---
Build Date: 08 October 2019  09:43:30AM
xorg-server 2:1.20.5+git20191008-0ubuntu1 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.38.4
	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 Dec  4 01:47:35 2019
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
VMware: No 3D enabled (0, Success).
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[1548]: Activating service name='org.a11y.atspi.Registry' requested by ':1.1' (uid=999 pid=1551 comm="nm-applet " label="unconfined")
dbus-daemon[1548]: Successfully activated service 'org.a11y.atspi.Registry'
SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry

(xfsettingsd:1585): GLib-CRITICAL **: 01:47:47.740: g_str_has_prefix: assertion 'prefix != NULL' failed

(xfsettingsd:1585): GLib-GObject-CRITICAL **: 01:47:47.780: g_value_get_string: assertion 'G_VALUE_HOLDS_STRING (value)' failed

(xfsettingsd:1585): GLib-GObject-CRITICAL **: 01:47:47.788: g_value_get_string: assertion 'G_VALUE_HOLDS_STRING (value)' failed

(nm-applet:1551): Gtk-WARNING **: 01:47:48.492: Can't set a parent on widget which has a parent

(xfwm4:1543): GLib-CRITICAL **: 01:47:53.619: g_str_has_prefix: assertion 'prefix != NULL' failed