Generic sound?

Ion-Mihai Tetcu itetcu at
Tue Jan 20 12:24:40 PST 2004

On Tue, 20 Jan 2004 06:08:51 -0600
gilrain <gilrain at> wrote:

> Hi all,
> Just got my 5.2-RELEASE installation up and running. My sound card 
> (Realtek onboard sound: ALC650) isn't supported, and from searching 
> Google it looks like there aren't any drivers.
> I was wondering (hoping!) that I could still get basic functionality 
> with some kind of generic driver. Like how my Radeon 9800Pro isn't 
> supported, but I can still get the basics by using the "vesa" driver. Is 
> there something like that for soundcards?

Well, what cipset does your card have ?

I have a Gigabyte GA-7VT600L KT600/8237 with ALC655 and I'm using:
itetcu at it> /root/bin [22:17:25] 0                                                                                
# kldstat | grep snd
 2    1 0xc09e0000 5d2c     snd_via8233.ko
 3    2 0xc09e6000 1e58c    snd_pcm.ko

which work usually ok without vchans at least for playback (I haven't
tried anything else).

itetcu at it> /root/bin [22:17:52] 1                                                                                
# sysctl hw.snd
hw.snd.targetirqrate: 32
hw.snd.report_soft_formats: 1
hw.snd.verbose: 1
hw.snd.unit: 0
hw.snd.maxautovchans: 0
hw.snd.pcm0.buffersize: 4096
hw.snd.pcm0.vchans: 0
hw.snd.pcm0.spdif_enabled: 0

itetcu at it> /root/bin [22:18:53] 1                                                                                
# pciconf -vl | grep -A4 pcm
pcm0 at pci0:17:5: class=0x040100 card=0xa0021458 chip=0x30591106 rev=0x60 hdr=0x00
    vendor   = 'VIA Technologies Inc'
    device   = 'VT8233/33A AC97 Enhanced Audio Controller'
    class    = multimedia
    subclass = audio

itetcu at it> /root/bin [22:24:10] 0                                                                                
# cat /dev/sndstat
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <VIA VT8233X> at io 0xe400 irq 22 (5p/1r/0v channels duplex default)

Unregistered ;) FreeBSD user

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