Public bug report changed: https://launchpad.net/malone/bugs/29789 Comment: The problem seems to be that the bttv module is loaded, rather than snd_bt87x I am unsure if this is udev's or the kernel's fault The following commands fix this, so I have working sound. $ sudo modprobe -r bt878 bttv $ sudo modprobe snd_bt87x $ sudo modprobe bt878