the command which crashed is /usr/bin/X :1 -br -verbose -auth /var/run/gdm/auth-for-gdm-wDcN6v/database -nol
(gdb) bt
#0 0x080ac984 in _XSERVTransClose (ciptr=0x8a7caa8)
at /usr/include/X11/Xtrans/Xtrans.c:930
#1 0x080a6bb4 in CloseWellKnownConnections () at ../../os/connection.c:492
#2 0x080b0c7f in SigAbortServer (signo=11) at ../../os/log.c:402
#3 0x080b10a1 in FatalSignal (signo=11) at ../../os/log.c:536
#4 0x080a9a72 in OsSigHandler (signo=11, sip=0xbfdb0f2c, unused=0xbfdb0fac)
at ../../os/osinit.c:157
#5 <signal handler called>
#6 0x00000000 in ?? ()
#7 0x080b13ae in FatalError (f=0x81c50a6 <Address 0x81c50a6 out of bounds>)
at ../../os/log.c:561
#8 0x08067014 in main (argc=9, argv=0xbfdb13d4, envp=0xbfdb13fc)
at ../../dix/main.c:206
the command which crashed is /usr/bin/X :1 -br -verbose -auth /var/run/ gdm/auth- for-gdm- wDcN6v/ database -nol
(gdb) bt X11/Xtrans/ Xtrans. c:930 onnections () at ../../os/ connection. c:492 osinit. c:157 main.c: 206
#0 0x080ac984 in _XSERVTransClose (ciptr=0x8a7caa8)
at /usr/include/
#1 0x080a6bb4 in CloseWellKnownC
#2 0x080b0c7f in SigAbortServer (signo=11) at ../../os/log.c:402
#3 0x080b10a1 in FatalSignal (signo=11) at ../../os/log.c:536
#4 0x080a9a72 in OsSigHandler (signo=11, sip=0xbfdb0f2c, unused=0xbfdb0fac)
at ../../os/
#5 <signal handler called>
#6 0x00000000 in ?? ()
#7 0x080b13ae in FatalError (f=0x81c50a6 <Address 0x81c50a6 out of bounds>)
at ../../os/log.c:561
#8 0x08067014 in main (argc=9, argv=0xbfdb13d4, envp=0xbfdb13fc)
at ../../dix/
using xorg-server 2:1.7.3. 902-1ubuntu8. ..