I have the exact same issue. This didn't happen until after I added in an ATI Radeon HD4650. Prior I was using integrated nvidia graphics. Attached are the files requested of the OP.
** Attachment added: "lspci.txt" http://launchpadlibrarian.net/22660214/lspci.txt -- [hardy] mythfrontend crash in glxMakeCurrentReadSGI() https://bugs.launchpad.net/bugs/211424 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