[mythtv-users] Re: Lost Sound on PVR-350

John Harvey john.p.harvey at btinternet.com
Sun Jan 8 23:26:06 UTC 2006



> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
> bounces at mythtv.org] On Behalf Of Kirk Bocek
> Sent: 08 January 2006 22:32
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Re: Lost Sound on PVR-350
> 
> Thanks for the pointers John. This system *was* working fine with kernel
> 2.6.13.2 and ivtv 0.4.0. I unsuccessfully tried to upgrade to 2.6.14.4 and
> ivtv 0.4.1. When that failed, I tried rolling back to the previously
> working
> config but *still* have no sound on playback.
> 
> John Harvey wrote:
> > So my suggestion is go back to basics and make sure we know where it is
> > broken.
> >
> > Presumably you are feeding the audio out of the 350 to the line in of
> the
> > audio card?
> > So for livetv/recordings  to fail to play audio there are several
> failure
> > points
> >
> > 1) The recoding/tv has no audio
> > 2) The playback from the 350 isn't generating any audio.
> > 3) The line in of the audio card is muted/volume turned down etc.
> >
> > To check 1)
> > Record something new and then play it with mplayer and check that you
> get
> > audio out of your audio card.
> >
> > To check 2) Try tacking the line out of the 350 straight into the
> > tv/speakers or whatever and play something from myth.
> 
> Yes, I configured the hardware this way. However, I have selected "Use the
> PVR-350s TV Out/MPEG Decoder" and "Use hardware XvMC decoding" but *not*
> "TV
> Audio through PVR-350 Only".
> 
> Doesn't that mean that the audio will not come out the external sound jack
> on
> the 350? I am 99% sure (duh, didn't write it down!) that I did *not* have
> Line
> In selected as the capture source in my previous config.
> 
If the 350 is playing being used as the decoder then the audio will come out
of the 350's audio output regardless of any other settings. 
The common problems with this are line in muted or volume turned down. It
may be obvious and not the problem but it's worth checking.

John



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