A quick fix is to type these commands in a terminal: $ sudo modprobe -r bt878 bttv $ sudo modprobe snd_bt87x $ sudo modprobe bt878
This bug is related to this one: https://launchpad.net/distros/ubuntu/+source/udev/+bug/29789 -- tvtime fails after upgrade from Breezy to Dapper https://launchpad.net/bugs/49528 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs