VIA VT1708S

VIA VT1708S

[dominique.baudelin]

Asus Notebook X70 Series X70AD Athlon M300-64 Ati Radeon HD 4570
OS Lucid Lynx 10.04 LTS
Audio chipset VIA VT1708S





Dear Sir,
In HD-Audio-Models.txt.gz file I don't find the VIA VT1708S codec and the assiociated Model name.
Have you got this information? I would like write: options snd-hda-intel model=?????? at the end of alsa-base.conf file.
Yours sincerely,
M. Dominique Baudelin

P.S.:If you aren't the good interlocutor I am sorry to disturb you.



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Re: VIA VT1708S

[Clemens Ladisch]

dominique.baudelin wrote:
> In HD-Audio-Models.txt.gz file I don't find the VIA VT1708S codec and the assiociated Model name.
> Have you got this information? I would like write: options snd-hda-intel model=??????

The VIA HDA driver detects the codec configuration automatically.
If that doesn't work, try a newer kernel/driver version.


Regards,
Clemens

Re: VIA VT1708S

[Niels Mayer]

On Mon, Aug 9, 2010 at 6:43 AM, dominique.baudelin
<dominique.baudelin@laposte.net> wrote:
> Asus Notebook X70 Series X70AD Athlon M300-64 Ati Radeon HD 4570
> OS Lucid Lynx 10.04 LTS
> Audio chipset VIA VT1708S
>
> P.S.:If you aren't the good interlocutor I am sorry to disturb you.

The vt1708 "just works" with recent versions of linux kernels. On my
system it calls itself "SB" (soundblaster?)

> aplay -l
...
card 1: SB [HDA ATI SB], device 0: VT1708S Analog [VT1708S Analog]
  Subdevices: 2/2
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
card 1: SB [HDA ATI SB], device 1: VT1708S Digital [VT1708S Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
...

For my particular ALSA usage where I wanted SPDIF output doubled w/
analog output, see "mythcd" and "mythtv" controlling card "SB" in
http://nielsmayer.com/npm/dot-asoundrc.txt

Also, some setups (like my ASUS_M4A78T-E mobo ) the vt1708S gives you
a additional HDMI device you may never use, yet it uses an interrupt
and an ALSA audio device.

##  1 [SB             ]: HDA-Intel - HDA ATI SB
##                       HDA ATI SB at 0xfb7f4000 irq 16
##  2 [HDMI           ]: HDA-Intel - HDA ATI HDMI
##                       HDA ATI HDMI at 0xfb9fc000 irq 19

It can be disabled (allowing some other ALSA device to be bound to
card slot 2)  with the following in /etc/modprobe.d/

alias snd-card-1 snd-hda-intel
#alias snd-card-2 snd-hda-intel
##
## disable HDMI device to conserve resources and interrupts
## 'modinfo -p snd-hda-intel' indicates this param will do the trick:
## enable:Enable Intel HD audio interface. (array of bool)
##
options snd-hda-intel index=1,2 enable=1,0

-- Niels
http://nielsmayer.com

Re: VIA VT1708S

[Clemens Ladisch]

Niels Mayer wrote:
> The vt1708 "just works" with recent versions of linux kernels. On my
> system it calls itself "SB" (soundblaster?)

south bridge

> Also, some setups (like my ASUS_M4A78T-E mobo ) the vt1708S gives you
> a additional HDMI device you may never use, yet it uses an interrupt
> and an ALSA audio device.
> 
> ##  1 [SB             ]: HDA-Intel - HDA ATI SB
> ##                       HDA ATI SB at 0xfb7f4000 irq 16
> ##  2 [HDMI           ]: HDA-Intel - HDA ATI HDMI
> ##                       HDA ATI HDMI at 0xfb9fc000 irq 19

This is the audio-over-HDMI function of the ATI graphics card or the
integrated GPU.


Regards,
Clemens

Re: VIA VT1708S

[Takashi Iwai]

At Wed, 11 Aug 2010 08:14:26 +0200,
Clemens Ladisch wrote:
> 
> Niels Mayer wrote:
> > The vt1708 "just works" with recent versions of linux kernels. On my
> > system it calls itself "SB" (soundblaster?)
> 
> south bridge

And it's actually a part of chipset name (SB450 etc).


Takashi