[    45.052] 
X.Org X Server 1.17.2
Release Date: 2015-06-16
[    45.052] X Protocol Version 11, Revision 0
[    45.052] Build Operating System: Linux 3.19.0-30-generic x86_64 Ubuntu
[    45.052] Current Operating System: Linux xieyi-PAF4 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 15:35:06 UTC 2015 x86_64
[    45.052] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=979e16d9-785a-4784-a525-1ef0177bc651 ro quiet splash
[    45.053] Build Date: 30 September 2015  09:08:47AM
[    45.053] xorg-server 2:1.17.2-1ubuntu9 (For technical support please see http://www.ubuntu.com/support) 
[    45.053] Current version of pixman: 0.32.6
[    45.053] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[    45.053] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    45.053] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Oct 24 16:54:14 2015
[    45.082] (==) Using config file: "/etc/X11/xorg.conf"
[    45.082] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    45.102] Data incomplete in file /etc/X11/xorg.conf
	Undefined Screen "nvidia" referenced by ServerLayout "layout".
[    45.102] (EE) Problem parsing the config file
[    45.102] (EE) Error parsing the config file
[    45.102] (EE) 
Fatal server error:
[    45.102] (EE) no screens found(EE) 
[    45.102] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[    45.102] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[    45.102] (EE) 
[    45.102] (EE) Server terminated with error (1). Closing log file.