For me, this bug started after upgrading to '13.04', did not happen in '12.10'. It is defenitly the same bug, i checked the backtrace. I attached a backtrace.
** Attachment added: "Backtrace of synaptics stack smash in 13.04" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1092615/+attachment/3692957/+files/stack_smash -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1092615 Title: X server crashes repeatedly with touchpad movements To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1092615/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs