[Solved] Natty - Microphone Input has no sound

[NoOp]

On 05/08/2011 11:17 PM, Lucio M Nicolosi wrote:
...
> Booted from the USB stick in "test Ubuntu" mode, completely updated the
> stick from the standard source, checked the microphone and of course it
> didn't work.
> 
> Opened alsamixer in a terminal screen, because there's a flaw in "Sound
> Preferences" - no option to set the mic input connector: front, rear or
> line-in -
> https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/771739 -
> (this bug is already addressed and fixed, but it's still present in
> the .iso release) and enabled the rear mic - standard in my system.
> 
> Tested the Sound Recorder again and "voilà" it works! This time without
> the serious distortions observed before.

You didn't enable the proposed repos on the USB stick when you updated
did you?

> 
> Installed Natty on HD again, (third or fourth time) now from this
> special stick, tested sound and it works, updated ((almost 200 Mb in
> file updates up to now) and it works, installed Skype and it still
> works, enabled NVidia last video driver, rebooted and Unity is there,
> and I still don't like it but at least the sound works.

Again, are the proposed repos enabled on the stick? If so that may
explain why it now works. What do you show for:
$ apt-cach policy pulseaudio

> 
> What really happened? I really don't know, but somehow it is was
> "magically" solved. I guess the developer (David Henningsson) will be
> very happy (or perhaps a bit intrigued, like me).
> 
> Cheers,
> 
> Lucio