[   551.853] 
X.Org X Server 1.17.1
Release Date: 2015-02-10
[   551.853] X Protocol Version 11, Revision 0
[   551.853] Build Operating System: Linux 3.2.0-61-generic x86_64 Ubuntu
[   551.853] Current Operating System: Linux jtg-ubuntu 3.19.0-26-generic #28-Ubuntu SMP Tue Aug 11 14:16:32 UTC 2015 x86_64
[   551.853] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.19.0-26-generic root=UUID=f397fe54-d92b-4e54-8eb2-732e7d50d3d7 ro quiet splash
[   551.853] Build Date: 19 March 2015  09:26:59AM
[   551.854] xorg-server 2:1.17.1-0ubuntu3 (For technical support please see http://www.ubuntu.com/support) 
[   551.854] Current version of pixman: 0.32.6
[   551.854] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[   551.854] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   551.854] (==) Log file: "/var/log/Xorg.0.log", Time: Wed Aug 26 21:12:12 2015
[   551.855] (==) Using config file: "/etc/X11/xorg.conf"
[   551.855] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   551.855] Data incomplete in file /etc/X11/xorg.conf
	Undefined Screen "nvidia" referenced by ServerLayout "layout".
[   551.855] (EE) Problem parsing the config file
[   551.855] (EE) Error parsing the config file
[   551.855] (EE) 
Fatal server error:
[   551.855] (EE) no screens found(EE) 
[   551.856] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[   551.856] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   551.856] (EE) 
[   551.856] (EE) Server terminated with error (1). Closing log file.