I experienced the same bug from just logging in. I followed the wiki page on backtracing and I used Valgrind.
** Attachment added: "valgrind-canberra-gtk-play.log" http://launchpadlibrarian.net/21882916/valgrind-canberra-gtk-play.log -- canberra-gtk-play crashed with SIGSEGV https://bugs.launchpad.net/bugs/308439 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