Enabling spdif passthru [SOLVED]

boazbd · Last edited by boazbd on Tue Jul 15, 2008 9:45 am; edited 1 time in total

Hi all.

Recently I bought a new mother board, a Gigabyte 73PVM-S2H (nforce 630i chipset).
I am using this with my living room computer and it is connected through the optical spdif to my
digital receiver.
I have been trying to enable passthru of dolby digital, dts, etc. to the receiver with no success.
I can play music and hear 2 channel sound just fine, but just can't use it to pass the digital signal
with 5.1 channels to the receiver.
Any help will be appreciated as I am becoming very frustrated and I really don't want to install
windows on my computers... (I'd love to have amarok to listen to music, etc...).
Thanks.

cassiol · Posted: Mon Jul 14, 2008 10:20 pm Post subject:

hellooooo

i found that two site...
maybe help you
http://gentoo-wiki.com/HOWTO_Surround_Sound
http://www.halfgaar.net/surround-sound-in-linux

col · Posted: Tue Jul 15, 2008 12:37 am Post subject:

On kmix in kde all I have to do is click on "IEC958 Output" under the switches tab.

boazbd · Posted: Tue Jul 15, 2008 4:31 am Post subject:

I enabled iec958, as I said, I can listen to music and watch movies but the sound coming out
from the optical spdif is two channel only.
Even when I am playing movies I know are encoded with dolby or dts with 5.1 channels the output stays 2 channels
(I can see that on my receiver).
I have no issue with stereo sound whatsoever, I think it's just that when playing a movie the information
is not passed through the spdif undecoded but is handled somehow by alsa (which probably downmixes it to 2 channels)
and only then sent over the spdif.

boazbd · Posted: Tue Jul 15, 2008 9:45 am Post subject:

Well, I got it working using this how to: http://alsa.opensrc.org/DigitalOut
Thanks anyway.