Ubuntu – Where is the Multichannel/Coaxial/SPDIF configuration option in Ubuntu 12.04

12.04pulseaudiosoundspdif

I recently switched from 10.04 to 12.04. I did a fresh install. However I can't configure 5.1 surround with my coaxial/SPDIF home teather, simply because the new sound manager interface doesn't provide options like in 10.04. In 10.04 I could configure 'digital output + analogic input' and everything was ok, but in 12.04 I can't do this.

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How can I change the configuration?

Best Answer

Ubuntu disables and hides digital audio output SPDIF in all Realtek / Nvidia Cards by default in fact it does same in all flavor of Ubuntu.

The procedure to fix it is the same in all versions of Ubuntu and works for all sound cards Ati Nvidia Realtek Creative Bosse etc. You need to edit a file to get it to work. Open a terminal with CtrlAltt and type this:

sudo nano /etc/modprobe.d/alsa-base.conf

then add this line to the end of the file

options snd-hda-intel model=auto

then use Ctrlo to save the file and Ctrlx to exit.

At this time you need to reboot the machine, and the missing digital audio spdif will be working. Go to task bar icon to select proper device (which will be showing now) to avoid sound output to all speakers at the same time.

For spanish take this link: http://www.fermu.com/es/articulos/linux/48-ubuntu/773-configurar-audio-hdmi-a-trav%C3%A9s-de-una-tarjeta-gr%C3%A1fica-nvidia-geforce-8600m-gt-en-ubuntu

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