Look like the problem is related to my wacom tablet. I didn't have any problem with the tablet plugged in normally (although it didn't worked properly). I think it's installing the wacom driver and modifying my xorg.conf file that made the problem appear. (I followed those instruction http://ubuntuforums.org/showthread.php?t=765915)
Now I have unplugged my tablet and revert back to my old xorg.conf and X don't crash anymore. -- Strange X Crash - Can reporduce when searching a page in Firefox https://bugs.launchpad.net/bugs/238014 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs