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

[Alain G. Fabry]

On Tue, Oct 02, 2007 at 12:36:37PM +0200, Erik Trulsson wrote:
> 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
> > 
> > 

I'm running driver snd_hda in 6.2 and works great thanks to somebody on the list. He gave me
the following info

Download the precompiled kernel module from here:

http://people.freebsd.org/~ariff/lowlatency/

Decompress the archive, copy sound.ko and snd_hda.ko to /boot/kernel
(you may as well copy all the .ko files, but these two are the ones needed)
then do (as root) a kldload snd_hda  ( and add  snd_hda_load="YES" to
/boot/loader.conf so it loads with each reboot).


Hope this helps.


_Alain

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