[mythtv-users] No sound from PVR-500 Tuner, working with Line In
swrobel at gmail.com
Wed Jun 22 17:06:43 UTC 2005
I'm totally stumped on this one, I spent a few hours on it last night and I
just can't get sound from the tuner. Here's the situation.
I'm using a PVR-500 and I've only gotten /dev/video0 working. The second
tuner seems to be detected in my dmesg, but /dev/video1 is not working like
it should and ivtvctl -d /dev/video1 -a shows really strange negative values
for brightness, contrast, etc. Just thought I'd throw that in there, but
that's only the beginning of my problems. I want to get sound working before
I worry about having both tuners.
I've captured stuff using the s-video input and the line in, and I can get a
video file with sound using cat /dev/video0 > test.mpg (and tested in Myth
as well, it captures video, no audio). I think I did ivtvctl -p 0 -q 2 for
that. However, using ivtvctl -p 6 (or 7, i've tried both) -q 0 (i've tried
the other -q values as well, but -q 0 should be tuner audio), I get a
perfect video file from whatever channel I'm tuned to, but no sound. I
assume the line in and tuner both use the same audio encoder, so I don't get
why I wouldn't be getting any sound from one but not the other! I think that
also rules out modules being loaded improperly, etc.
Does anyone have any experience with this? I'm pulling my hair out at this
point. I'm using ivtv version 0.3.6m. Thanks!
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