[alsa-devel] Mic not working on Dell Vostro 1700 by default

[Takashi Iwai]

At Tue, 22 Dec 2009 18:50:28 +0100,
Anisse Astier wrote:
> 
> On Tue, 22 Dec 2009 18:44:04 +0100, Anisse Astier <anisse at astier.eu> wrote :
> 
> > Hi,
> > 
> > (i'm not subscribed to the list, please cc me in replies)
> > 
> > So I'm on a Dell Vostro 1700 with latest BIOS (A07). In the default
> > configuration, the mic is not working.
> > 
> > But if I append model=dell-m42 when loading snd-hda-intel, it works.
> > 
> > My alsa-info:
> >  http://www.alsa-project.org/db/?f=8d6f7d613b909c0eef67f93e0e86bf13476e9e54
> > 
> > alsa-info with option model=dell-m42
> >  http://www.alsa-project.org/db/?f=233cee7ffea01b9f46451e64c95c4fc482ab4ee4
> > 
> > I don't know if dell-m42 is enough, I chose it because it was used for the
> > Dell Vostro 1500, for which there was a pci quirk in patch_sigmatel.c,
> > and that seemed close enough. Everything seems to work properly though.
> > 
> > I don't know if it's possible to add the same pci-quirk (or a similar one)
> > in patch_sigmatel.c , or any dmi-based quirk, but I'd like to help in
> > doing so.
> > 
> > I compiled a working hda-verb should some remote debugging be needed.
> > 
> 
> I forgot to add that this is also working with dell-m44. A pointer:
> https://wiki.ubuntu.com/InstallingUbuntuOnADellVostro1700#AUDIO :
> suggestion to add this option by default on ubuntu.

So, which is better, m42 or m44?
This can be checked only with a real hardware...


thanks,

Takashi