Strange audio problems--OT question

[Doug]

On 12/28/2012 01:29 AM, Basil Chupin wrote:
/snip/
>
> The next question is: is this sound being generated by the 
> motherboard's onboard chipset or by a PCI(/E) card? And which of these 
> is selected/activated in the BIOS (you cannot have both activated 
> [disclaimer here])?
/snip/

I would appreciate some more information on this.  This is not related 
to Ubuntu, altho it affects Linux and XP.
I have 2 sound decoders (if that's what they should be called) in my 
system; one on the mobo, and another
in my GeForce video card with NVidia hardware/software. The video card 
has an HDMI port, which is connected
to my TV. In Linux, I can get sound from the mobo with video (via the 
normal computer video connection from
the GeForce board.) However, no sound comes out of the TV.  In XP, I can 
get video on both the local monitor
and the TV, again, but this time I can only get sound from the TV. Both 
Linux and XP use NVidia drivers designed
for the respective systems.

I hope I have described this correctly, since it has been some time 
since I tried to get it working.

I had a friendly fellow on the PCLOS Forum try to get sound from both 
devices at the same time, but without success.

Is there something built in to the motherboard, or into the OS or even 
the BIOS which prevents sound from being
decoded and output from both devices at the same time?

I really wouldn't care if it worked in only one of the two operating 
systems, since I want to use it to watch movies or
delayed TV shows on the TV, but I would like to have the audio on the 
computer audio also, so as to set things up,
and so on, at the computer, the TV being in another room.

I would assume that if anyone ever figures out to do this, it will be 
for the Linux system, since that's open software,
and XP is not.

If you need to know the technical details:
Foxconn mobo, G41MXE/G41MXE-K
BIOS: American Megatrends ver.080015, dtd 10/14/2010
CPU:Intel Celeron E3400 @ 2.60GHz. (Dual Core)
On-board video disabled in BIOS.
Video: GeForce GTX 550 Ti
Audio--on mobo: Intel N10/ICH 7 Family High Definition Audio Controller
Audio--on GeForce: GF116 High Definition Audio Controller, from NVidia Corp.

--doug