[Solved] Natty - Microphone Input has no sound

[Lucio M Nicolosi]

On Fri, 2011-04-29 at 00:07 -0300, Lucio M Nicolosi wrote:
> On Thu, Apr 28, 2011 at 9:14 PM, NoOp <glgxg at sbcglobal.net> wrote:
> >
> > Maybe:
> > <https://launchpad.net/+search?field.text=snd_hda_codec_nvhdmi+%2Bnatty&field.actions.search=Search>
> > will be of use?
> 
> Sure, I'll post at the bug report.
> 
> At least for a while, I think I'll stay with Maverick...
> 
@NoOp

Problem solved. What happened? I don't know.

Puzzled with the fact that I was the only guy in Ubuntu Natty planet
with a crashed sound, decided to give another try.

This time, instead of zsync-inc my .iso sources from
cdimage.ubuntu.com , zsync-ed from the actual Natty release in nearest
mirror (it shouldn't make any difference since I started seriously
testing Natty Beta just after the final release on April 28 - but, in
fact, there was a slight difference, less than .5%). Then burned a USB
stick from within the current and buggy Natty test install, instead of
using the Maverick application (brothers frequently have issues among
them).

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.

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.

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


-- 
L M Nicolosi, Eng.
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