Re: NVIDIA: no sound to TV via HDMI

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On Mon, 2010-01-25 at 17:30 +0800, Ed Greshko wrote:
> Bill Davidsen wrote:
> > Marcel Rieux wrote:
> >   
> >> Since the NVIDIA forums are just a lost of time, I'll first ask the
> >> question here.
> >>
> >> I have an NVIDIA 9400GT card and a Sony LCD TV linked with an HDMI cable.
> >>
> >> First problem I found: the S/PDIF cable -- which is needed only with
> >> NVIDIA cards -- wasn't installed. The plug had a molding problem and
> >> one of the 4 holes was blocked. (The hole was just empty: no wire
> >> going to it.) I opened it with a pin, installed it with the arrow
> >> facing the closest part of the motherboard, reversed it, and, of
> >> course, sound doesn't come out of the TV. It's an Nvidia product!
> >>
> >> Anybody got this working?
> >>     
> >
> > Did you get PulseAudio to send output to the connector? Many times this is a PA 
> > config issue.
> >
> >   
> That is actually a very good question....
> 
> Everything I would find out about ASUS Nvidia 9400GT based cards
> (assuming this is an actual card) is that the spdif cable is simply a
> pass though.  One connects the spdif cable from the graphics card to
> either a sound card connector or motherboard connector (depending on
> your system and its configuration) and sound is simply passed through to
> the HDMI. 
> 
> So, one needs to ensure the output is configured correctly.
> 
> FWIW, this also seems to indicate that the Nvidia drivers are not used
> for this functions.

I second that.
Is one of your sound card connected via a pass-through to the graphics
card?
Is it configured correctly in the gnome-volume-control applet under
output devices? (Accessible from both GNOME and KDE)

- Gilboa


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