(EE) 
(EE) Backtrace:
(EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4e) [0x55f894b0c6ce]
(EE) 1: /usr/lib/xorg/Xorg (0x55f89495a000+0x1b6a69) [0x55f894b10a69]
(EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f981fbce000+0x354b0) [0x7f981fc034b0]
(EE) 3: /usr/lib/xorg/Xorg (DamageDestroy+0xb1) [0x55f894a930d1]
(EE) 4: /usr/lib/xorg/Xorg (0x55f89495a000+0xe41d1) [0x55f894a3e1d1]
(EE) 5: /usr/lib/xorg/Xorg (0x55f89495a000+0xdf059) [0x55f894a39059]
(EE) 6: /usr/lib/xorg/Xorg (0x55f89495a000+0x78762) [0x55f8949d2762]
(EE) 7: /usr/lib/xorg/Xorg (FreeResource+0xd9) [0x55f8949d3389]
(EE) 8: /usr/lib/xorg/Xorg (0x55f89495a000+0xe177c) [0x55f894a3b77c]
(EE) 9: /usr/lib/xorg/Xorg (0x55f89495a000+0x10c840) [0x55f894a66840]
(EE) 10: /usr/lib/xorg/Xorg (0x55f89495a000+0x1347dd) [0x55f894a8e7dd]
(EE) 11: /usr/lib/xorg/Xorg (0x55f89495a000+0x7fb0a) [0x55f8949d9b0a]
(EE) 12: /usr/lib/xorg/Xorg (DeleteWindow+0x22b) [0x55f8949dcf3b]
(EE) 13: /usr/lib/xorg/Xorg (0x55f89495a000+0x78762) [0x55f8949d2762]
(EE) 14: /usr/lib/xorg/Xorg (FreeClientResources+0x6c) [0x55f8949d398c]
(EE) 15: /usr/lib/xorg/Xorg (CloseDownClient+0x6f) [0x55f8949ad23f]
(EE) 16: /usr/lib/xorg/Xorg (0x55f89495a000+0x53c11) [0x55f8949adc11]
(EE) 17: /usr/lib/xorg/Xorg (0x55f89495a000+0x57e13) [0x55f8949b1e13]
(EE) 18: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f981fbee830]
(EE) 19: /usr/lib/xorg/Xorg (_start+0x29) [0x55f89499c069]
(EE) 
(EE) Segmentation fault at address 0x55f8954655e8
(EE) 
Fatal server error:
(EE) Caught signal 11 (Segmentation fault). Server aborting
(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) 
(II) AIGLX: Suspending AIGLX clients for VT switch
(EE) Server terminated with error (1). Closing log file.

X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-97-generic x86_64 Ubuntu
Current Operating System: Linux seuxserver 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC 2018 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-4.4.0-116-generic.efi.signed root=/dev/mapper/seuxserver--vg-root ro
Build Date: 13 October 2017  01:57:05PM
xorg-server 2:1.18.4-0ubuntu0.7 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.33.6
	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: Fri Feb 23 14:19:40 2018
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
(II) [KMS] Kernel modesetting enabled.

X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-97-generic x86_64 Ubuntu
Current Operating System: Linux seuxserver 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC 2018 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-4.4.0-116-generic.efi.signed root=/dev/mapper/seuxserver--vg-root ro
Build Date: 13 October 2017  01:57:05PM
xorg-server 2:1.18.4-0ubuntu0.7 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.33.6
	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: Fri Feb 23 22:30:00 2018
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.