linelevel@linelevel:~$ tail /var/log/Xorg.0.log
(EE) 4: /usr/bin/X (0x7f82af2bc000+0x950e7) [0x7f82af3510e7]
(EE) 5: /usr/bin/X (0x7f82af2bc000+0xc06a7) [0x7f82af37c6a7]
(EE) 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f82ae5e2000+0xfcb0) [0x7f82ae5f1cb0]
(EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (__select+0x13) [0x7f82ad333743]
(EE) 8: /usr/bin/X (WaitForSomething+0x19b) [0x7f82af46ea9b]
(EE) 9: /usr/bin/X (0x7f82af2bc000+0x554f2) [0x7f82af3114f2]
(EE) 10: /usr/bin/X (0x7f82af2bc000+0x4415a) [0x7f82af30015a]
(EE) 11: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f82ad26776d]
(EE) 12: /usr/bin/X (0x7f82af2bc000+0x444b1) [0x7f82af3004b1]
(EE)