Fwd: Re: Long msg: Unable to enable audio in FreeBSD 6.2 - Chipset VT8233A

Erik Trulsson ertr1013 at student.uu.se
Tue Oct 2 03:36:42 PDT 2007


On Tue, Oct 02, 2007 at 11:22:49AM +0100, Sai Vinob wrote:
> Dominique had asked me to try few stuff.
> 
> First he had asked me to give the output of pciconf. Which we found
> didnot have any entry for my sound card. As a reference he had given
> part of his pciconf. Compare his with mine. (Attachments are given.)

That chipset is not a VT8233A. It is a Via VT8237A.
The snd_hda(4) driver should work for that chip.
I don't think that driver was included in 6.2-RELEASE, so you might have
to upgrade to the latest -STABLE if you have not already done so,

(In case someone wonders:  No, the VT8237 and the VT8237A are
not the same chip.  The most obvious is which audio driver is needed (snd_via8233
vs snd_hda))

> 
> > I don't see an entry for your sound card, mine is:
> > pcm0 at pci0:2:7:  class=0x040100 card=0x56701462 chip=0x70121039
> > rev=0xa0
> >  hdr=0x00
> >     vendor     = 'Silicon Integrated Systems (SiS)'
> >     device     = 'SiS7013 PCI Audio Accelerator'
> >     class      = multimedia
> >     subclass   = audio
> > 
> > Exactly. For some reason the driver is not being loaded I guess. Look
> > at the entry 'none2' in 'pciconf' which refers to multimedia device.
> > Guess that's my audio device.
> > 
> > > none2 at pci4:1:0: class=0x040300 card=0x81e71043 chip=0x32881106
> >  rev=0x10 hdr=0x00
> > >     vendor   = 'VIA Technologies Inc'
> > >     class    = multimedia
> > > none3 at pci5:7:0: class=0x078000 card=0x205d14f1 chip=0x2f3014f1
> >  rev=0x01 hdr=0x00
> > >     vendor   = 'Conexant Systems, Inc'
> > >     class    = simple comms
> > >
> 
> He then had asked me to try loading the generic driver.
> 
> > You shoud give a try with loading all modules just in case with:
> > kldload sound
> 
> I tried this too. But the result has not changed for good. Same
> outputs for all-kldstat, cat /dev/sndstat, dmesg, pciconf ...
>  
> Then I decided to custom compile my kernel itself. I first unloaded
> 'sound'. Followed the instructions in the FreeBSD handbook to compile
> custom kernel and booted into system with it. Strangely even now the
> output of 'kldstat' is,
>    Id Refs Address    Size     Name
>    1   10 0xc0400000 7182a8   kernel
>    2    1 0xc0b19000 59f20    acpi.ko
>    3    1 0xc436a000 16000    linux.ko
>    4    1 0xc43c1000 17000    ng_btsocket.ko
>    5    1 0xc43d8000 a000     netgraph.ko
>    6    1 0xc43e6000 2000     ng_bluetooth.ko
> 
> and that of '/dev/sndstat' is,
>   FreeBSD Audio Driver (newpcm)
>   Installed devices:
> 
> I'm attaching the 'dmesg' and 'pciconf' files for your reference. The
> files are same before and after building custom kernel. I checked with
> 'diff'.
>  
> If even custom building the kernel to include the sound and
> snd_via8233 driver doesnot help then don't know whatelse to try. 
>  
> 
> 
> 
> 
> --Sai Vinob
> 
> 


-- 
<Insert your favourite quote here.>
Erik Trulsson
ertr1013 at student.uu.se


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