Xorg crashed with SIGABRT

[Pascual Gallardo Ruiz]

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ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-core 2:1.15.0-1ubuntu7
ProcVersionSignature: Ubuntu 3.13.0-19.39-generic 3.13.6
Uname: Linux 3.13.0-19-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.13.3-0ubuntu1
Architecture: i386
Date: Sun Mar 23 16:57:21 2014
ExecutablePath: /usr/bin/Xorg
InstallationDate: Installed on 2012-10-23 (516 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.1)
ProcCmdline: /usr/bin/X -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch
ProcEnviron:

Registers: No hay tabla de símbolos cargada. Use la orden «file».
Signal: 6
SourcePackage: xorg-server
Stacktrace: => 0xb7593424: No se puede acceder a la memoria en la dirección 0xb7593424
StacktraceTop:

Title: Xorg crashed with SIGABRT
UpgradeStatus: Upgraded to trusty on 2014-03-10 (12 days ago)
UserGroups:

[Apport retracing service (apport)]

Stacktrace:
 #0 0xb7593424 in ?? ()
 No symbol table info available.
 Cannot access memory at address 0xbfbde874
StacktraceSource: #0 0xb7593424 in ?? ()
StacktraceTop: ?? ()
ThreadStacktrace:
 .
 Thread 1 (LWP 16106):
 #0 0xb7593424 in ?? ()
 No symbol table info available.
 Cannot access memory at address 0xbfbde874