HDMI audio support with radeon driver

Oliver Fromme olli at lurza.secnetix.de
Wed Dec 29 17:40:26 UTC 2010

Pierre Guinoiseau <geekounet at poildetroll.net> wrote:
 > is there any WIP on enabling audio output throught HDMI with the radeon driver?

On my mainboard, I can select the default audio output with
the hw.snd.default_unit sysctl.  Setting it to 0 selects
the HDMI output (1 is rear line-out, 2 is front-panel, 3
is SPDIF, and 4 is something I've forgotten).  See the
output of ``cat /dev/sndstat''.  On my box it says:

FreeBSD Audio Driver (newpcm: 32bit 2009061500/i386)
Installed devices:
pcm0: <HDA ATI RS690/780 HDMI PCM #0 HDMI> (play)
pcm1: <HDA Realtek ALC892 PCM #0 Analog> (play/rec) default
pcm2: <HDA Realtek ALC892 PCM #1 Analog> (play/rec)
pcm3: <HDA Realtek ALC892 PCM #2 Digital> (play)
pcm4: <HDA Realtek ALC892 PCM #3 Digital> (play)

Best regards

Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
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