snd_hda and nVidia GeForce 8200 (MCP78S)

Torfinn Ingolfsen torfinn.ingolfsen at broadpark.no
Fri Dec 26 23:23:13 UTC 2008


Hello,

I am testing a new machine[1]. This is a barebone from Asus, with a
nVidia GeForce 8200 (aka MCP78S) chipset.
The machine runs FreeBSD / amd64, currently RELENG_7:
root at kg-v2# uname -a
FreeBSD kg-v2.kg4.no 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Thu Dec
25 15:51:46 CET 2008
root at kg-v2.kg4.no:/usr/obj/usr/src/sys/GENERIC  amd64
When I loaded snd_hda, I get these lines in /var/log/messages:
Dec 25 16:33:27 kg-v2 kernel: pcm0: <NVidia (Unknown) High Definition Audio Controller> mem 0xfcf78000-0xfcf7bfff irq 22 at device 7.0 on pci0
Dec 25 16:33:27 kg-v2 kernel: pcm0: [ITHREAD]
Dec 25 16:33:27 kg-v2 kernel: pcm0: <HDA Codec: VIA (Unknown)>
Dec 25 16:33:27 kg-v2 kernel: pcm0: <HDA Driver Revision: 20080420_0052>

And cat /dev/sndstat shows:
root at kg-v2# cat /dev/sndstat
FreeBSD Audio Driver (newpcm: 64bit 2007061600/amd64)
Installed devices:
pcm0: <NVidia (Unknown) High Definition Audio Controller> at memory 0xfcf78000 irq 22 kld snd_hda [20080420_0052] [MPSAFE] (1p:1v/1r:1v channels duplex default)

I added the latest UAA patch[2] by alexander Motin, and now /var/log/messages show:
Dec 26 20:28:57 kg-v2 kernel: hdac0: <NVidia (Unknown) High Definition Audio Controller> mem 0xfcf78000-0xfcf7bfff irq 22 at device 7.0 on pci0
Dec 26 20:28:57 kg-v2 kernel: hdac0: HDA Driver Revision: 20081030_0115
Dec 26 20:28:57 kg-v2 kernel: hdac0: [ITHREAD]
Dec 26 20:28:57 kg-v2 kernel: hdac0: HDA Codec #0: VIA (Unknown)
Dec 26 20:28:57 kg-v2 kernel: hdac0: HDA Codec #3: NVidia (Unknown)
Dec 26 20:28:57 kg-v2 kernel: pcm0: <HDA VIA (Unknown) PCM #0> at cad 0 nid 1 on hdac0
Dec 26 20:28:57 kg-v2 kernel: pcm1: <HDA VIA (Unknown) PCM #1> at cad 0 nid 1 on hdac0
Dec 26 20:28:57 kg-v2 kernel: pcm2: <HDA NVidia (Unknown) PCM #0> at cad 3 nid 1 on hdac0

Output from cat /dev/sndstat is:
FreeBSD Audio Driver (newpcm: 64bit 2007061600/amd64)
Installed devices:
pcm0: <HDA VIA (Unknown) PCM #0> at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/1r:1v channels duplex default)
pcm1: <HDA VIA (Unknown) PCM #1> at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/0r:0v channels)
pcm2: <HDA NVidia (Unknown) PCM #0> at cad 3 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/0r:0v channels)

I don't know yet if sound is workling at all - more testing is needed.  I'll report later.
Continued happy holidays to all!

References:
1) http://tingox.googlepages.com/asus_v2-m3n8200
2) http://people.freebsd.org/~mav/hda.7.20081030.patch
-- 
Regards,
Torfinn Ingolfsen,
Norway



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