[mythtvnz] Next problem --- Audio over DVI to HDMI

Ross and Jemima Knudsen ross.jemima at gmail.com
Sat Mar 6 20:46:00 GMT 2010


Nick Rout wrote:
 > yes you can. Some chipsets will let you do this. dvi and hdmi are
> electrically equivalent and the plugs don't care what is in the
> digital signal they carry.
> 
> If it's an integrated video chipset (ie on motherboard) it may not
> need any physical connection set up. If it's a discrete graphics card
> you probably need a cable from the motherboard spdif header to the
> graphics card.
> 
> But it depends on your hardware!
> 
> I thought surround51 was for setups where you have 6 analogue speakers
> connected to your computer, eg by three 3.5mm stereo plugs. I think
> you should be looking for alsa:iec958. But what does aplay -L and
> aplay -l say? (that's upper and lowercase -L)
> 

I posted the output of those commands here:
http://pastebin.com/2ywM4Ppc

The graphics card is discrete but I can't remember the brand, I'll have
to have a look and might open the case to see if there is a spdif header
on the card.

As for ASLA:surround51, I remember reading somewhere that that was a
'fix' for the problem I encountered when I upgraded.  I can't remember
where the post was though.  I obviously need to change it as you
described.  I have been running analogue stereo speakers using
ALSA:default on 0.21/Jaunty but when I upgraded to either Karmic or 0.22
the sound stopped working and only changing to ALSA:surround51 gave me
anything.  But that won't matter if I can get the sound over the DVI cable!



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