Hi,
SuperNu 69 wrote:
> Recently, one of my PVR-350's have begun to randomly drop the audio from
> recordings in MythTV. I have searched the archives and came across this
> thread ( http://www.gossamer-threads.com/lists/ivtv/devel/36925) about
> spontaneous muting. Unfortunately, this thread doesn't really solve my
> problem. So far, I have recorded a bunch of shows during the day and at
> night. Sometimes, the audio will mute on one tuner, and all subsequent
> recordings on that tuner will also be muted. When I play the recording
> which mutes the audio, the video will freeze when the audio is muted. I
> have set options ivtv debug=255 in /etc/modprobe.conf and set MythTV's
> backend verbose level to all and haven't noticed any strange entries in
> /var/log/messages or /var/log/mythtv/mythbackend.log.
>
> So far, I have noticed this on Fedora 8 kernels 2.6.23.8-63.fc8 and
> 2.6.23.9-85.fc8 and also with MythTV versions 0.20.2-169.fc8,
> 0.20.2-170.fc8 and 0.20.2-171.fc8 from ATrpms. I have also switched the
> positioning of the PRV-350's in my PC and the muting problem still
> occurred on the same card making me believe it is most likely a hardware
> problem rather than a software problem. I have not had a chance to test
> under Windows since I do not own a Windows license.
>
> If anybody has any suggestions I would greatly appreciate them. My next
> idea is to send an email to Hauppauge and inquire about a RMA.
After I tested my PVR350 with windows (worked like a charm) and had no
audio at all on my (definitly working) PVR150, too, I downgraded to
kernel 2.6.23.1 and ivtv from about 2007-06-02. So far no problems.
Till now I didn't find time for debugging/logging my problems. Hope I
can do this next week...
What I found spontaneously is this:
working setup:
Tuner:
Capabilities : 62.5 kHz multi-standard stereo lang1 lang2
Frequency range : 44.0 MHz - 958.0 MHz
Signal strength : 99%
Current audio mode : lang1
Available subchannels: stereo
setup with no audio at all (same frequence, same broadcast):
Tuner:
Capabilities : 62.5 kHz multi-standard stereo lang1 lang2
Frequency range : 44.0 MHz - 958.0 MHz
Signal strength : 99%
Current audio mode : lang1
Available subchannels: mono lang2
Problems with correct auto detecting of audio sub channels?
Lars.
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