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

Axel Thimm Axel.Thimm at ATrpms.net
Sat Jan 7 16:00:33 UTC 2006


On Sat, Jan 07, 2006 at 07:36:49AM -0800, Kirk Bocek wrote:
> Well, the weird thing is that I returned to my previously working 
> 2.6.13.2 kernel and ivtv 0.4.0 and *still* do not have sound.
> 
> I tried, after a suggestion from Axel Thimm, installing the i386 RPMs on 
> my x86_64 system but that causes an "Unable to Initialize Video" message 
> and a whole slew of errors in the logs.

That suggestion was for mythtv rpms only, not kernel and/or ivtv.

> At this point I'm dead in the water as far a TV goes. I can still listen 
> to music, watch DVDs, view pictures. But the TV tuners are off line.
> 
> I have no idea what to do next.

Veryfy that the tuners are working outside of mythtv, e.g. by just
pointing mplayer to them. If you get video/sound, then you know that
it's a mythtv issue (not likely). Otherwise you need to use the proper
kernel, kmdl and firmware combination, and I'd take this issue to the
ivtv lists and solve this there.

> Tom Gutwin wrote:
> >I think it might be something with updated ALSA kernel driver modules.
> >There have been a couple of others with mysterious "new" audio related
> >issues after kernel or alsa updates.

Since this is independent of the capturing process, you can easily
check this by capturing to a file and checkign whether that file has
sound or not. If it has, then it could be an alsa issue. If it hasn't
then alsa has nothing to play.

> >see
> >https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1658
> >  here is more on that ALSA report 
> >http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg13933.html
> >
> >Here are some MythTV reports
> >http://mythtv.org/pipermail/mythtv-users/2006-January/115637.html
> >http://mythtv.org/pipermail/mythtv-users/2006-January/115634.html
> >
> >I think we should raise this over at ALSA.
> >
> >tom
> >
> >Kirk Bocek wrote:
> >
> >>I recently tried upgrading ivtv from 0.4.0 to 0.4.1 and the kernel 
> >>from 2.6.13.2 to 2.6.14.4. In the process I somehow lost sound on live 
> >>tv and  while playing back recorded programs that I am sure have sound.
> >>
> >>I still have sound through Xine and MythMusic.
> >>
> >>I have rolled everything back to 0.4.0 and the original kernel but 
> >>still don't have sound on the recordings.
> >>
> >>I am at a loss what to do next. Does anyone have any suggestions?
> >>
> >>Myth is installed from the ATrpms collection. Along the way I noticed 
> >>that a mix of i386 and x86_64 RPMs were installed. I cleaned that up 
> >>and only x86_64 versions are left. Could I have missed something there?
> >>
> >>"Use PVR-350 TV out/MPEG decoder" *is* selected. "TV audio through 
> >>PVR-350" is *not* selected. Alsamixer settings should be correct since 
> >>I am getting sound out of Xine and MythMusic.
> >>
> >>The correct msp3400.ko is being loaded.
> >>
> >>Any ideas?
> >>
> >>Thanks,
> >>Kirk
> >>_______________________________________________
> >>mythtv-users mailing list
> >>mythtv-users at mythtv.org
> >>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >>
> >
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> mythtv-users at mythtv.org
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-- 
Axel.Thimm at ATrpms.net
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