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 . 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 of https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/771739 - and enabled the rear mic - standard in my system. Tested the Sound Recorder again and "voilĂ " 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 David Henningsson will be happy to know or perhaps a bit intrigued, like me. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-media in Ubuntu. https://bugs.launchpad.net/bugs/771633 Title: [Natty] Realtek ALC888 0x10ec0888 - mic not functional -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs