Skype audio not working :( , i know it's too bad if one of the only few good VoIP provides for Linux in {not}Working , i did this to slove that :

sudo killall pulseaudio
sudo apt-get remove pulseaudio
sudo apt-get install esound
sudo rm /etc/X11/Xsession.d/70pulseaudio

{if not working}
{ sudo apt-get install pulseaudio} then,

1. Run this command to add the source:

CODE

echo "deb http://ppa.launchpad.net/alsa-backports/ubuntu hardy main" | sudo tee /etc/apt/sources.list.d/alsa-backports.list

2. Update software repositories list:

CODE

sudo apt-get update

3. Perform a full system upgrade.

CODE

sudo apt-get dist-upgrade

Alternatively, this should work too:

CODE

sudo apt-get upgrade