(EE) glamor0: GL error: GL_OUT_OF_MEMORY in glTexSubImage
(EE) glamor0: GL error: GL_OUT_OF_MEMORY in glTexSubImage
(EE) glamor0: GL error: GL_OUT_OF_MEMORY in glTexSubImage
(EE) glamor0: GL error: GL_OUT_OF_MEMORY in glTexSubImage
(EE) glamor0: GL error: GL_OUT_OF_MEMORY in glTexSubImage
(EE) glamor0: GL error: GL_OUT_OF_MEMORY in glTexSubImage
(EE) glamor0: GL error: GL_OUT_OF_MEMORY in glTexSubImage
(EE) 
(EE) Backtrace:
(EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x560581eab229]
(EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x50) [0x7f3cc6de2e1f]
(EE) 2: /usr/lib/xorg/modules/libglamoregl.so (glamor_get_pixmap_texture+0x7d) [0x7f3cc557244d]
(EE) 3: /usr/lib/xorg/modules/libglamoregl.so (glamor_create_gc+0x7b08) [0x7f3cc5584988]
(EE) 4: /usr/lib/xorg/modules/libglamoregl.so (glamor_create_gc+0x7f3c) [0x7f3cc558512c]
(EE) 5: /usr/lib/xorg/modules/libglamoregl.so (glamor_create_gc+0x854e) [0x7f3cc55858ce]
(EE) 6: /usr/lib/xorg/modules/libglamoregl.so (glamor_create_gc+0xa54c) [0x7f3cc558952c]
(EE) 7: /usr/lib/xorg/Xorg (DamageRegionAppend+0x6af) [0x560581e2d79f]
(EE) 8: /usr/lib/xorg/modules/libglamoregl.so (glamor_create_gc+0x1137e) [0x7f3cc559787e]
(EE) 9: /usr/lib/xorg/Xorg (AddTraps+0x41a5) [0x560581e260c5]
(EE) 10: /usr/lib/xorg/Xorg (SendErrorToClient+0x35e) [0x560581d4c97e]
(EE) 11: /usr/lib/xorg/Xorg (InitFonts+0x3b6) [0x560581d50906]
(EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xeb) [0x7f3cc6c0409b]
(EE) 13: /usr/lib/xorg/Xorg (_start+0x2a) [0x560581d3a67a]
(EE) 
(EE) Segmentation fault at address 0x0
(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 1.20.1
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-138-generic x86_64 Ubuntu
Current Operating System: Linux bastet 4.18.0-11-generic #12-Ubuntu SMP Tue Oct 23 19:22:37 UTC 2018 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.18.0-11-generic root=UUID=9d341c90-212b-47c2-b0f0-a7e607ee860b ro quiet splash vt.handoff=1
Build Date: 25 October 2018  02:53:34PM
xorg-server 2:1.20.1-3ubuntu2.1 (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: Thu Nov 15 16:05:48 2018
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) modeset(G0): Initializing kms color map for depth 24, 8 bpc.
(II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
randr: falling back to unsynchronized pixmap sharing