This is probably a very silly thing I'm missing, but I've sadly hit the point where switches are all blurring together badly. I *almost* have things working on my box, but not quite there yet.
I have a PVR-350 card that I've finally gotten almost working completely, save for some problems with the sound. Yes, yes, sound and the PVR-350, there's a lot of threads on that. This one is different, though. Really.
I have a digital cable box (Motorola DCT2000) that I'm trying to run things through. I have the S-video and audio component cables running from it to the PVR-350, and video comes in great, but sound is missing. *However*, when I instead take the coax cable from the wall and plug it directly into the card rather than into the cable box, then do "test_ioctl -p 4", I get the audio and video from the coax cable.
Turning back to -p 6 or -p 8, I can get picture again through the box and its cabling (though complaining of no signal at that point, since I just unplugged the cable coming into the box

), but still no sound. So the sound itself is working, but it's not recognizing the audio save for when the card is operating as the tuner. Searching through the rest of the -p values, I can't find anything that gives me audio save -p 4 and the coax cable.
I've searched through the forum and looked at the ivtv docs, to no avail. I tried the "test_ioctl -v" options, each and every, and could only get silence or static. I did try fine-tuning the frequency for a few minutes after, but couldn't shake the feeling that I was missing something extremely simple that should be changed between the two setups. I've just spent so much time getting the card itself to work that my mind feels somewhat fried.
(As an aside, I'm not even sure if I need this working -- the digital cable here hasn't had anything lately that I particularly care about, but is required for me to have a cable modem. In the short term I'm probably going to use the coaxial-in for the card for simplicity's sake and ignore the cable box, until I feel like begging the local cable company to turn on the box's serial port or setting up an IR blaster for changing channels on it. But I'd like to get this working so that if I do change my mind and route through the cable box itself, I'll have one less thing to figure out then.)
Thanks very much!