HDMI audio support with radeon driver

Marat N.Afanasyev amarat at ksu.ru
Tue Dec 28 22:17:12 UTC 2010

Pierre Guinoiseau wrote:
> Hi,
> is there any WIP on enabling audio output throught HDMI with the radeon driver?
> It seems it has been recently implemented in the Linux kernel 2.6.33 [1], but
> it's in the KMS driver, so will it need to wait for a KMS implementation on
> FreeBSD too? I don't really know how this is supposed to work, but can't it be
> just hacked in the snd_hda driver?
> I know this is implemented (and working well I suppose) with the radeonhd
> driver, but... radeonhd segfaults on my computer, and I need the radeon driver
> anyway. :)
> For now, when I try to play a video with the HDMI sound output, it plays the
> video too fast and with no sound at all, like described here [2]. The snd_hda
> driver does strange things.
> Anyway, if I can be of any usefulness to have it implemented on FreeBSD, like
> for testing it, I will be glad to, of course. :)
> Thanks!
> Pierre G.
> [1]: http://sourceforge.net/mailarchive/forum.php?thread_name=1254080322.10803.20.camel%40zweiundvierzig&forum_name=dri-devel
> [2]: http://lists.freebsd.org/pipermail/freebsd-multimedia/2009-December/010578.html

pcm3: <HDA ATI R6xx HDMI PCM #0 HDMI> (play)
but I haven't tried this yet...

С уважением, Марат Афанасьев

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