[mythtv-users] Problems adding second capture card to mythtv

Nick knowledgejunkie at gmail.com
Fri Mar 25 03:01:25 UTC 2005


On Thu, 24 Mar 2005 21:43:10 -0500, Scot L. Harris <webid at cfl.rr.com> wrote:
> On Thu, 2005-03-24 at 20:10, Scot L. Harris wrote:
> > For the past couple of weeks I have been having great success running a
> > mythtv system with a single PVR-350 card.
> >
> > Today I tried to add a second capture card, a PVR-250MCE, and have run
> > into some problems.
> >
> 
> To add a little more information to the problem I seem to have created
> for myself I used to get the audio out from the PVR350 card.  Currently
> audio out is coming from the mother boards on board sound system.
> 
> Going back through the guide I can't seem to find any reference to
> getting audio working through the PVR-350's outputs.  I would have
> thought that if the 350's decoder was being used that the audio would be
> going out the 350's connections instead of the on board sound chips.
> 

Scot,

I would also assume that if the frontend is configured to use the
350's decoder, both sound and video would be produced from the 350.
Are you sure it's not that the 350 audio is hooked back into your
on-board sound?

> Does the order of the cards in the system make a difference?  The new
> PVR-250 seems to be video0 now and the PVR-350 is video1.

See below

> 
> BTW: x windows is going out the PVR-350 outputs just fine.
> 
> Any help in resolving this would be greatly appreciated.  I really do
> want to get the second encoder card working.
> 

I would hazard a guess that when you installed the 250 card you
installed it inbetween your AGP slot and the 350 card. It has been
given a lower BusID which (I think) means it is detected first (this
is also likely why it grabs video0)

I would try swapping the cards around if indeed this is the case, to
give the 350 the lower BusID and have it detected first. Then when
this is stable again and mythfrontend is using the 350 decoder
properly, add back the 250 card but in a PCI slot higher than the 350,
i.e. further away from the AGP slot.

*possibles* It looks like that 250 card has not been properly
identified in the bus scan (or perhaps it just never is. Make sure you
are using a version of ivtv that supports the 250MCE and also that
there are no udev issues stopping the correct devices being created
when the ivtv drivers are loaded.

(On a personal note, I gave up on FC3 and downgraded to FC2 and since
then my system has been a lot more stable. I''ll need to get FC3
installed at some point but there were additional frustrations like
the udev issues that FC2 didn't give me)

HTH,
Nick


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