How to change probe order of HDA sound devices?

Boris Samorodov bsam at
Tue Jun 25 11:54:20 UTC 2013

25.06.2013 15:01, Andre Albsmeier пишет:
> I replaced my old non-sound capable graphics card with a new one
> (Nvidia GeForce GT 610).
> Now all the sound hardware of this new card gets probed _before_
> my standard sound device (Realtek), shifting the latter from
> hdac0 to hdac1:
> hdac0: <NVIDIA GF119 HDA Controller> mem 0xfea7c000-0xfea7ffff irq 17 at device 0.1 on pci8
> ...
> hdac1: <Intel 82801G HDA Controller> mem 0xfebfc000-0xfebfffff irq 19 at device 27.0 on pci0
> ...
> hdacc0: <NVIDIA (0x001c) HDA CODEC> at cad 0 on hdac0
> hdaa0: <NVIDIA (0x001c) Audio Function Group> at nid 1 on hdacc0
> pcm0: <NVIDIA (0x001c) (HDMI/DP 8ch)> at nid 4 on hdaa0
> pcm1: <NVIDIA (0x001c) (HDMI/DP 8ch)> at nid 5 on hdaa0
> hdacc1: <Realtek ALC882 HDA CODEC> at cad 0 on hdac1
> hdaa1: <Realtek ALC882 Audio Function Group> at nid 1 on hdacc1
> pcm2: <Realtek ALC882 (Rear Analog)> at nid 21 and 26 on hdaa1
> pcm3: <Realtek ALC882 (Rear Analog)> at nid 20 and 24 on hdaa1
> pcm4: <Realtek ALC882 (Analog)> at nid 22 and 28 on hdaa1
> pcm5: <Realtek ALC882 (Rear Analog Line-out)> at nid 23 on hdaa1
> pcm6: <Realtek ALC882 (Front Analog Headphones)> at nid 27 on hdaa1
> pcm7: <Realtek ALC882 (Rear Digital)> at nid 30 on hdaa1
> How can I get back the old behaviour so that the Realktek
> card will sit on hdac0? Tried the usual suspects like
> but this didn't work.

Maybe you just need to change the default?
sysctl hw.snd.default_unit=1

Please, consult SOUND(4) for more details.

WBR, Boris Samorodov (bsam)
FreeBSD Committer, The Power To Serve

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