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

X.Org X Server 1.19.3
Release Date: 2017-03-15
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-70-generic x86_64 Ubuntu
Current Operating System: Linux kubuntu 4.10.0-19-generic #21-Ubuntu SMP Thu Apr 6 17:04:57 UTC 2017 x86_64
Kernel command line: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
Build Date: 28 March 2017  06:16:52AM
xorg-server 2:1.19.3-1ubuntu1 (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: Tue May  2 14:28:51 2017
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
(EE) 
Fatal server error:
(EE) xf86OpenConsole: Switching VT failed
(EE) 
(EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.
ubiquity-dm: set vars
ubiquity-dm: pam_open_session
ubiquity-dm: dm-scripts
ubiquity-dm: dbus
ubiquity-dm: dconf-service
ubiquity-dm: start frontend kde_ui
ubiquity-dm: paint background
ubiquity-dm: add_ubiquity_kdedir
ubiquity-dm: start kde4breeze
QXcbConnection: Could not connect to display :0
setting widget style: "Breeze" true
ubiquity-dm: kde4breeze exited with code 0
ubiquity-dm: start kwin
ubiquity-dm: start greeter
kwin: FATAL ERROR while trying to open display :0
Aborted (core dumped)
ubiquity-dm: greeter exited with code 134
ubiquity-dm: Exiting with code 134