By reading through this post, this problem appears to be related much more to xorg drivers, particularly this savage driver. All media related apps that use Xv could be listed, but that is quite counter- productive. Removing mythtv from the list.
** Changed in: mythtv (Ubuntu) Status: Unconfirmed => Rejected -- mplayer with xv crashes system on specific file https://launchpad.net/bugs/34776 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs