/var/crash/_usr_bin_Xorg.0.crash

[thufir]

I'm stuck with this crash:

thufir at dur:~$ 
thufir at dur:~$ cat /var/log/apport.log
ERROR: apport (pid 7743) Sun Aug 17 15:31:59 2014: called for pid 2993, 
signal 11, core limit 0
ERROR: apport (pid 7743) Sun Aug 17 15:31:59 2014: executable: /usr/lib/
firefox/firefox (command line "/usr/lib/firefox/firefox")
ERROR: apport (pid 7743) Sun Aug 17 15:31:59 2014: executable version is 
blacklisted, ignoring
ERROR: apport (pid 9857) Sun Aug 17 16:39:13 2014: called for pid 1079, 
signal 6, core limit 4294967295
ERROR: apport (pid 9857) Sun Aug 17 16:39:13 2014: executable: /usr/bin/
Xorg (command line "/usr/bin/X -core :0 -seat seat0 -auth /var/run/
lightdm/root/:0 -nolisten tcp vt7 -novtswitch")
ERROR: apport (pid 9857) Sun Aug 17 16:39:13 2014: is_closing_session(): 
no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 9857) Sun Aug 17 16:39:26 2014: wrote report /var/
crash/_usr_bin_Xorg.0.crash
ERROR: apport (pid 12355) Sun Aug 17 18:24:17 2014: called for pid 9878, 
signal 6, core limit 4294967295
ERROR: apport (pid 12355) Sun Aug 17 18:24:17 2014: executable: /usr/bin/
Xorg (command line "/usr/bin/X -core :0 -seat seat0 -auth /var/run/
lightdm/root/:0 -nolisten tcp vt7 -novtswitch")
ERROR: apport (pid 12355) Sun Aug 17 18:24:17 2014: is_closing_session(): 
no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 12355) Sun Aug 17 18:24:17 2014: apport: report /var/
crash/_usr_bin_Xorg.0.crash already exists and unseen, doing nothing to 
avoid disk usage DoS
ERROR: apport (pid 21569) Sun Aug 17 18:31:38 2014: called for pid 19448, 
signal 6, core limit 4294967295
ERROR: apport (pid 21569) Sun Aug 17 18:31:38 2014: executable: /usr/bin/
Xorg (command line "/usr/bin/X -core :0 -seat seat0 -auth /var/run/
lightdm/root/:0 -nolisten tcp vt7 -novtswitch")
ERROR: apport (pid 21569) Sun Aug 17 18:31:38 2014: is_closing_session(): 
no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 21569) Sun Aug 17 18:31:46 2014: wrote report /var/
crash/_usr_bin_Xorg.0.crash
ERROR: apport (pid 23415) Sun Aug 17 18:37:50 2014: called for pid 21577, 
signal 6, core limit 4294967295
ERROR: apport (pid 23415) Sun Aug 17 18:37:50 2014: executable: /usr/bin/
Xorg (command line "/usr/bin/X -core :0 -seat seat0 -auth /var/run/
lightdm/root/:0 -nolisten tcp vt7 -novtswitch")
ERROR: apport (pid 23415) Sun Aug 17 18:37:50 2014: is_closing_session(): 
no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 23415) Sun Aug 17 18:37:50 2014: apport: report /var/
crash/_usr_bin_Xorg.0.crash already exists and unseen, doing nothing to 
avoid disk usage DoS
ERROR: apport (pid 25606) Sun Aug 17 18:52:50 2014: called for pid 23419, 
signal 6, core limit 4294967295
ERROR: apport (pid 25606) Sun Aug 17 18:52:50 2014: executable: /usr/bin/
Xorg (command line "/usr/bin/X -core :0 -seat seat0 -auth /var/run/
lightdm/root/:0 -nolisten tcp vt7 -novtswitch")
ERROR: apport (pid 25606) Sun Aug 17 18:52:50 2014: is_closing_session(): 
no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 25606) Sun Aug 17 18:52:50 2014: this executable 
already crashed 2 times, ignoring
thufir at dur:~$ 



but /var/crash/_usr_bin_Xorg.0.crash isn't human readable.  The crash is 
happening quite frequently.

Is there a better log to look at?


thanks,

Thufir

Ubuntu 14.04