From Xorg.0.log.old
[ 21.507] (II) No input driver/identifier specified (ignoring) [ 89.460] Backtrace: [ 89.460] 0: /usr/bin/X (xorg_backtrace+0x26) [0x4a2bd6] [ 89.460] 1: /usr/bin/X (0x400000+0x638ba) [0x4638ba] [ 89.460] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f44a8b9d000+0xfc60) [0x7f44a8bacc60] [ 89.460] 3: /lib/x86_64-linux-gnu/libc.so.6 (__select+0x13) [0x7f44a7b8b293] [ 89.460] 4: /usr/bin/X (WaitForSomething+0x19b) [0x45ceab] [ 89.460] 5: /usr/bin/X (0x400000+0x2f6e2) [0x42f6e2] [ 89.460] 6: /usr/bin/X (0x400000+0x2325e) [0x42325e] [ 89.460] 7: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xff) [0x7f44a7acbe1f] [ 89.460] 8: /usr/bin/X (0x400000+0x2354d) [0x42354d] [ 89.460] Caught signal 3 (Quit). Server aborting [ 89.460]
From Xorg.0.log.old
[ 21.507] (II) No input driver/identifier specified (ignoring) +0x26) [0x4a2bd6] 64-linux- gnu/libpthread. so.0 (0x7f44a8b9d000 +0xfc60) [0x7f44a8bacc60] 64-linux- gnu/libc. so.6 (__select+0x13) [0x7f44a7b8b293] ng+0x19b) [0x45ceab] 64-linux- gnu/libc. so.6 (__libc_ start_main+ 0xff) [0x7f44a7acbe1f]
[ 89.460]
Backtrace:
[ 89.460] 0: /usr/bin/X (xorg_backtrace
[ 89.460] 1: /usr/bin/X (0x400000+0x638ba) [0x4638ba]
[ 89.460] 2: /lib/x86_
[ 89.460] 3: /lib/x86_
[ 89.460] 4: /usr/bin/X (WaitForSomethi
[ 89.460] 5: /usr/bin/X (0x400000+0x2f6e2) [0x42f6e2]
[ 89.460] 6: /usr/bin/X (0x400000+0x2325e) [0x42325e]
[ 89.460] 7: /lib/x86_
[ 89.460] 8: /usr/bin/X (0x400000+0x2354d) [0x42354d]
[ 89.460]
Caught signal 3 (Quit). Server aborting
[ 89.460]