"Andrew T. Rich" wrote: > > Gerd (et al) -- > > The ATI TV-Wonder card has a line out on the back of the capture card, > which the user would then connect to his sound card using a regular old > stereo patch cable. I have a pair of headphones plugged directly into the > sound output from the card, and there is no sound. So the capture card is > not being instructed to process the audio portion of the signal, or > something. > > My theory is that the card needs two drivers: one to run the video > decoding, and one to run the audio decoding (windows requires two drivers > to accomplish this function). The problem is that Mandrake is assigning > the video driver to both cards, I believe. (And I can't find a driver for > the audio portion of the card). There are 3 common variations in audio handling: a) Audio is decoded by the tuner (and must only be routed to Line Out by audio-mux chip 4052). b) Audio is decoded by some TDAxxxx os MSPxxxx chips. These have extra drivers in bttv (e.g. msp34xx, tvaudio). c) (uncommon) The BT878 has an audio function to get audio via PCI DMA (no external audio loopback cable needed), this is supported by btaudio; however setting this up is more difficult to get line out working ! Post "dmesg|grep bttv" and "tools/detect" (from bttv-0.7.xx), as this shows what is used on your card.
