I was really suprized when I read Changelog for latest bttv: * enabled the avermedia tvphone audio hook. switching to stereo should work now. the problem is - switching to stereo works perfect with tda9840 chip, after changing: gpiomask: 12 I write about it some weeks ago, and there is "12" in bttv-cards.c now, so for example bttv-0.7.52 works perfect bttv-0.7.54 seems work well too, but after I quit xawtv - the sound is not muted, so I must "rmmod bttv" to switch it off I don't know where avermedia_tvphone_audio is needed, but it isn't in AVerMedia TV Phone 98, at least in my model, with tda9840 -- Turn round slowly Tell us what you see Oh no - The fly got the spider And now he's chasing me "Otherworld" - Ronnie James Dio