amd64/101417: 4-speakers output not possible on Asus A8V-Deluxe

[Francesco]

>Number:         101417
>Category:       amd64
>Synopsis:       4-speakers output not possible on Asus A8V-Deluxe
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Aug 05 17:50:16 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Francesco
>Release:        6.1-STABLE
>Organization:
>Environment:
FreeBSD tower.local.loc 6.1-STABLE FreeBSD 6.1-STABLE #5: Sat Aug  5 19:06:35 CEST 2006     u at tower.local.loc:/usr/obj/usr/src/sys/AMD  amd64
>Description:
Motherboard ASUS A8V-Deluxe has the following sound card:

pcm0 at pci0:17:5: class=0x040100 card=0x812a1043 chip=0x30591106 rev=0x60 hdr=0x00
    vendor   = 'VIA Technologies Inc'
    device   = 'VT8233/33A/8235/8237 AC97 Enhanced Audio Controller'
    class    = multimedia
    subclass = audio

This card is able to send audio out up to 6 speakers.
However, the FreeBSD VT8233 audio driver would only use the front speakers.

There might be a simple workaround on this one but none from the internet or patches or anything.

>How-To-Repeat:
By installing any 5. or 6. and then:

mpg123 any_filename
>Fix:
None.
>Release-Note:
>Audit-Trail:
>Unformatted: