[mythtv-users] No sound on second Hauppauge 150

Brian Wood beww at beww.org
Wed Mar 8 15:25:35 UTC 2006

On Mar 8, 2006, at 7:11 AM, Stephen Kitchener wrote:

> On Tuesday 07 Mar 2006 18:52, Stephen Kitchener wrote:
>> On Tuesday 07 Mar 2006 16:59, David Watkins wrote:
>>>> Ok, Posting stuff to my own email isn't normal, but I have more  
>>>> info...
>>>> For those that haven't read the previous emails, I have two  
>>>> identical
>>>> cards, Hauppauge 150's, one that was originally in the machine, and
>>>> working for some time and now an additional one which I get  
>>>> video out
>>>> of it but no sound out of it.
>>>> When I test the cards without mythtv, from the command line, I get
>>>> sound and vision from both, but from within mythtv, the sound is
>>>> missing on one of the cards, it's always tuner 2 that has the  
>>>> problem.
>>>> If I change tuner with the Y key, the sound is muted, However,  
>>>> from a
>>>> console I issue the command
>>>> ivtvctl --set-ctrl=mute=1 -d /dev/video1 (To mute it even though  
>>>> it is
>>>> muted!!)
>>>> Then
>>>> ivtvctl --set-ctrl=mute=0 -d /dev/video1 (To un-mute it)
>>>> I get sound from the second tuner.
>>>> I have to issue the two commands, it doesn't work If I just try to
>>>> unmute it..
>>>> If I go to the original tuner (still working as normal) and then  
>>>> back
>>>> to the second tuner, via the Y key, the sound is again muted, So  
>>>> I have
>>>> to go through the two ivtvctl command again, which is no good for
>>>> recording.
>>>> So, to me, it must be mythtv that is causing the muting. But  
>>>> it's not
>>>> limited to the Y key (It does cause the card to be remuted), If I
>>>> record from the second tuner the sound is muted also...
>>>> Any takers ???
>>> I can't really help but, if I was in your shoes I'd remove the card
>>> that is working and try and get the other card working on its  
>>> own.  It
>>> might be that you have different chipsets/tuner types in the two  
>>> cards
>>> and that you're missing the magic bit of configuration that allows
>>> them both to work.  If you can get each card  to work separately  
>>> then
>>> you might discover what the difference is, and then be able to  
>>> tackle
>>> it.
>> I have tried this as you suggested, and they work fine  
>> individually......
>>> Also I remember from a few versions ago (0.16) that there was a  
>>> check
>>> box somewhere in mythtvsetup card settings labelled something like
>>> 'prevent mythtv muting sound'.  I've no idea if this option is still
>>> there or even if it's likely to work in your case, but it does sound
>>> like just what you want!
>> Yes that would be it, or something like it....not seen it in  
>> mythtv-setup
>> though....
>>> Hope this helps.
>>> _______________________________________________
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>>> mythtv-users at mythtv.org
>>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
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> I case anyone is interested, I fixed my no sound on the second tuner
> problem.....
> I had to install ivtv 0.4.0...
> Now, my question is, does this look like an ivtv problem, in that  
> the later,
> ie newer versions don't seem to work correctly with two hauppauge  
> 150's
> installed ???
> Who do I report the 'fault' to ???

I don't think it is an inherent problem with later IVTVs. I'm running  
0.4.3 and the system started out with 2 150s and worked fine. It now  
has 4 150s in it and still works.

One of the 150s is an "MCE" model, and I thus have a problem with the  
tuner being recognized properly. If I use the normal fix of passing  
the tuner type to IVTV I get the incorrect tuner on the 3 non-MCE units.

My "solution" is that I am only using the composite input on the MCE  
card, and thus the tuner type doesn't matter, but I'd still like to  
know if there is some way to pass a parameter to IVTV for just one of  
the cards.

And YES, we are all interested, as are the archives most of all. I'm  
sure we have all experienced the frustration of finding a thread with  
our exact problem which stops before the solution gets posted. Some  
folks apparently lose interest in posting as soon as they get things  

If we can pin this down to something repeatable the information  
should also go into the WiKi.

Thanks for following up.

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