Looking at XorgLogOld.txt, this clearly seems to be an X server segfault:
Backtrace: [ 12377.329] 0: /usr/bin/X (xorg_backtrace+0x26) [0x460566] [ 12377.329] 1: /usr/bin/X (0x400000+0x64b6a) [0x464b6a] [ 12377.329] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f2845f51000+0x10060) [0x7f2845f61060] [ 12377.329] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f283f5a4000+0x6ee9) [0x7f283f5aaee9] [ 12377.329] 4: /usr/bin/X (WakeupHandler+0x5b) [0x433a6b] [ 12377.329] 5: /usr/bin/X (WaitForSomething+0x1b6) [0x45e016] [ 12377.329] 6: /usr/bin/X (0x400000+0x2f912) [0x42f912] [ 12377.329] 7: /usr/bin/X (0x400000+0x232fe) [0x4232fe] [ 12377.329] 8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f2844e7a30d] [ 12377.329] 9: /usr/bin/X (0x400000+0x235ed) [0x4235ed] [ 12377.329] Segmentation fault at address (nil) [ 12377.329] Caught signal 11 (Segmentation fault). Server aborting [ 12377.329] Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 12377.329] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
Looking at XorgLogOld.txt, this clearly seems to be an X server segfault:
Backtrace: +0x26) [0x460566] 64-linux- gnu/libpthread. so.0 (0x7f2845f51000 +0x10060) [0x7f2845f61060] xorg/modules/ input/evdev_ drv.so (0x7f283f5a4000 +0x6ee9) [0x7f283f5aaee9] 0x5b) [0x433a6b] ng+0x1b6) [0x45e016] 64-linux- gnu/libc. so.6 (__libc_ start_main+ 0xed) [0x7f2844e7a30d] wiki.x. org Xorg.0. log" for additional information.
[ 12377.329] 0: /usr/bin/X (xorg_backtrace
[ 12377.329] 1: /usr/bin/X (0x400000+0x64b6a) [0x464b6a]
[ 12377.329] 2: /lib/x86_
[ 12377.329] 3: /usr/lib/
[ 12377.329] 4: /usr/bin/X (WakeupHandler+
[ 12377.329] 5: /usr/bin/X (WaitForSomethi
[ 12377.329] 6: /usr/bin/X (0x400000+0x2f912) [0x42f912]
[ 12377.329] 7: /usr/bin/X (0x400000+0x232fe) [0x4232fe]
[ 12377.329] 8: /lib/x86_
[ 12377.329] 9: /usr/bin/X (0x400000+0x235ed) [0x4235ed]
[ 12377.329] Segmentation fault at address (nil)
[ 12377.329]
Caught signal 11 (Segmentation fault). Server aborting
[ 12377.329]
Please consult the The X.Org Foundation support
at http://
for help.
[ 12377.329] Please also check the log file at "/var/log/