Audio HDMI output not detected (HTPC)

[Spideyy]

Hi guys, i am new at the using of any linux distributions, so please be kind

I installed a Sabayon_Linux_11_x86_G on my ARCTIC M001-DVD (HTPC), with xbmc boot priority,
but i have a serious issue, with HDMI output port. The video is OK, but audio output was not
detected. Only S/PDIF and standart analog outputs.

Parametrs of ARCTIC M001-DVD

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http://www.arctic.ac/en/p/living/entertainment-center/382/mc001-dvd.html?c=2296

I will be really grateful, if somebody could hepl with me this issue...

[Stupot]

So, that has ATI graphics.

Are you using proprietary or open source drivers?

Not sure? Let's check.

As root what does

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#eselect opengl list

Have selected?

If it's xorg-x11, then you are using the open source drivers.

If you are, then you probably need to add "radeon.audio=1" to the kernel parameters. I had to do this to get audio working on my htpc using the ati open source drivers and it works great once that was added.

What you will want to do is open up /etc/default/grub as root with any editor (nano should be installed by default).

Look for the following entry:

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GRUB_CMDLINE_LINUX_DEFAULT

and make that line look like so:

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GRUB_CMDLINE_LINUX_DEFAULT="radeon.audio=1"

Then run the following still as root:

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 grub-mkconfig -o /boot/grub/grub.cfg

Then reboot and it should work.

If you are using the proprietary drivers, the hdmi audio should be working without needing any extra configuring. If those are what you are running, then respond back and we'll do our best to figure out what's going on.