Really weird mic problem in 10.04.1

Nils Kassube kassube at
Sat Sep 18 08:23:01 BST 2010

O. Sinclair wrote:
> On 17/09/2010 22:22, Michael Hirsch wrote:
> > On Fri, Sep 17, 2010 at 4:05 AM, O. Sinclair<o.sinclair at>  
> >> This is Kubuntu 10.04 with KDE 4.4.5 on a Dell Vostro 3300 laptop
> >> 
> >> For reasons of me messing up my system I had to make a clean
> >> install. Prior to that I had the internal microphone as well as
> >> the external mic-input working, used it in Skype now and then.
> >> 
> >> Following the reinstall with x number of upgrades and all that
> >> internal mic is no longer working, neither is the mic-input using
> >> an external mic.
> > 
> > Do you have pulseaudio installed and running?  Check your process
> > list and see.  Sometimes it sneaks in.
> Nope, only "good old" alsa. Everything else works as expected - only
> the microphones are dead

Please check in alsamixer or kmix if you have a slider marked "Digital". 
That was a new one with 10.04 on my machines and first it wasn't obvious 
to me that it also has an influence on the capture gain.


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