Re: RS880 Audio Device (Radeon HD 4200) HDMI sound interface difficulties

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On Sat, Dec 31, 2011 at 4:54 PM, Gregory P. Ennis <PoMec@xxxxxxxxx> wrote:
>> Does anyone know if there are special drivers that are needed for this.
>
> I don't know if this is one of the ATI cards that falls in the
> unsupported category or not, but there are definitely ATI HDMI
> cards out there with no HDMI audio support in current released kernels.
>
> http://www.phoronix.com/scan.php?page=news_item&px=MTAyNDY
>
> possibly includes your card (not sure though).
>
> You may have to install the ATI proprietary drivers (if they'll
> work with F16, which is also iffy :-).
>
> ---------------------------------------------------------------
>
> Tom,
>
> Thanks for the response.  I was afraid of that.  I don't think my skill
> set allows me to safely try out their drivers.  I already tried to
> install akmod-catalyst and ruined my gui.  Thanks for your suggestion,
> Looks like I may need to wait on a 3.3 kernel unless someone else has
> unlocked this problem.

Actually, the kernel has HDMI audio support for your particular card,
it's just disabled by default.  Add "radeon.audio=1" to your kernel
command line to enable it.

Hat-tip to the always awesome Arch wiki for this information.

-T.C.
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