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

X.Org X Server 1.20.9
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.15.0-118-generic x86_64 Ubuntu
Current Operating System: Linux kubuntu 5.8.0-25-generic #26-Ubuntu SMP Thu Oct 15 10:30:38 UTC 2020 x86_64
Kernel command line: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/kubuntu.seed maybe-ubiquity quiet splash ---
Build Date: 07 October 2020  05:46:52AM
xorg-server 2:1.20.9-2ubuntu1 (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: Sat Nov  7 07:56:11 2020
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
resize called 1600 900
ubiquity-dm: set vars
ubiquity-dm: pam_open_session
ubiquity-dm: dm-scripts
ubiquity-dm: start frontend kde_ui
ubiquity-dm: paint background
ubiquity-dm: add_ubiquity_kdedir
ubiquity-dm: start kde4breeze
setting widget style: "Breeze" true
ubiquity-dm: kde4breeze exited with code 0
ubiquity-dm: start kwin
ubiquity-dm: start greeter
ubiquity-dm: greeter exited with code 1
Couldn't start kglobalaccel from org.kde.kglobalaccel.service: QDBusError("org.freedesktop.DBus.Error.Spawn.ChildSignaled", "Process org.kde.kglobalaccel received signal 6")
OpenGL vendor string:                   nouveau
OpenGL renderer string:                 NV43
OpenGL version string:                  2.1 Mesa 20.2.1
OpenGL shading language version string: 1.20
Driver:                                 Nouveau
GPU class:                              NV40/G70
OpenGL version:                         2.1
GLSL version:                           1.20
Mesa version:                           20.2.1
X server version:                       1.20.9
Linux kernel version:                   5.8
Requires strict binding:                yes
GLSL shaders:                           limited
Texture NPOT support:                   yes
Virtual Machine:                        no
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 1909, resource id: 6291472, major code: 18 (ChangeProperty), minor code: 0
(II) Server terminated successfully (0). Closing log file.
ubiquity-dm: Exiting with code 1