[alsa-devel] Possible regression on Sigmatel 9205

[Takashi Iwai]

At Wed, 15 Oct 2008 11:14:49 -0300,
Manuel Naranjo wrote:
> 
> On Wed, Oct 15, 2008 at 10:50 AM, Matthew Ranostay
> <mranostay at embeddedalley.com> wrote:
> > Manuel Naranjo wrote:
> >>>> Hello everyone,
> >>>>
> >>>> Sorry to interrupt you all, but I had been trying to get the digital mic
> >>>> of my Dell Inspiron 1521 for the last 5 days without any sucess.
> >>>>
> >>>> I'm running kernel 2.6.27 with included ALSA, I also tried GIT alsa, and
> >>>> the result is the same, the mic works, but the volume is so damn low
> >>>> that there's no way to hear it.
> >>>>
> >>>> I checked dell's windows drivers and my board belongs to the M4_8 line
> >>>> and not to the M4_2 as suggested in alsa source. I also did a diff
> >>>> between M4_2 and M4_8 and there are some differences, specially in GPIO.
> >>>>
> >>>> I don't know what else to do now, I had tried everything. Last working
> >>>> alsa was 1.15 if I'm not wrong, but I'm not able to backport 1.15 to the
> >>>> new kernel, for some reason it fails to compile.
> >>> Do you have "Digital" volume adjusted properly (in the control name
> >>> "Digital Capture Volume")?
> >>> Usually this should be in exactly middle, which corresponds to 0dB.
> >>
> >> Yep I did. I guess you're tired of stupid support requests. Don't
> >> worry I think I know what I'm doing very well. Tried with lots of
> >> different model options for the module too, none worked.
> >>
> >>
> >>> Anyway, please show the alsa-info.sh output with --no-upload option.
> >>> This will tell us more detailed information.
> >> Sure, I'm attaching 2 version. One is by not passing any argument to
> >> the module after a fresh boot, the other one is by using
> >> model=dell-m42 which should be mine according to my PID. BTW there are
> >> lots of bug tickets opened for this card over the net, most related to
> >> Ubuntu and kernel > 2.6.24
> >>
> >> Thanks,
> >> Manuel
> >
> >
> > I only see the 'Digital Capture Volume' in the no parameters output.
> > You generally need to run 'arecord -f cd foo.wav' to load the digital softvol mixer.
> >
> > Thanks,
> >
> > Matt Ranostay
> 
> Sorry, ok I did that. With pulseaudio running calling to arecord
> fails.

Maybe a bug of pulse alsa-plugin I posted today?


Takashi