[mythtv-users] No sound on second Hauppauge 150

[Brian Wood]

On Mar 8, 2006, at 8:54 AM, Stephen Kitchener wrote:

>
> Hi,
>
> Well the repeatable part is that when I select the second tuner  
> with the Y
> key, the sound on the additional tuner is muted, if I then change  
> channels on
> that tuner, the sound is restored and stays restored on all  
> channels, I have
> only channels 5 here, until I select the original tuner. The  
> original tuner
> (the one that is in use at start-up)  has no problem with sound at  
> all, If I
> then go away from the second tuner, again with the Y key and then  
> back again,
> the sound on the second tuner is again muted, and changing channels  
> restores
> the sound.
>
> With 0.4.0 this does not happen, at least it hasn't yet, it's been  
> only a day
> since I have it working.
>
> I have to say that the cards are identical, same model etc.....
>
> When the card is muted and I do ivtvctl -Y -d /dev/video1, the data  
> returned
> is
>
> ioctl: VIDIOC_QUERYCTRL
> Brightness = 127
> Contrast = 63
> Saturation = 52
> Hue = 0
> Volume = 58880
> Mute = 0
>
> So, I suspect that the muting is happening within mythtv only and  
> not the
> driver.....Is that a fair assumption ??
>
> But it's not limited to the use of the Y key, because when I record  
> from the
> second tuner, the sound is muted also... again the use of ivtvctl -Y
> -d /dev/video1 shows the same details.
>

I understand what was happening, just not why. I think if recent  
versions of IVTV did this in all cases this list would be full of  
screaming posts, a lot of people are using multiple 150s.

My question is did your problem clear up because you installed 0.4.0,  
or because you installed *any* other version from what you were  
using. The installation may have fixed some configuration problem  
that you were not aware of.

I suppose the logical step would be to re-install the newer version  
that was giving you trouble, and see if it now works.

Of course we all hate to mess with a working installation, and I am  
not trying to create work for you, but this is what I meant by  
"repeatable", doing something must correct the problem, and un-doing  
it should re-create it.

In any case I think you have shown that the problem is related to  
IVTV, and not MythTV, and you have given anyone having a similar  
problem a pointer to a solution, thus contributing to the group *and*  
getting your problem fixed. That's basically what the list is for.