I can’t believe it. The audio was not working anymore.
The video was working fine from the beginning, however: I made a screenshot showing how desperate I was :o)
I downloaded the Feisty .deb package of Skype2.0 beta, installed it and it was NOT working, no sound, or sound the first time and then no sound at all, even Amarok wasn’t able to work after trying and I had to reboot.
I was dying of anger, I swear.
I have spent the whole day trying, tweaking, learning ALSA.
Well, I’m a perfect dumbass. If I had looked where I was meant to look the first time, I would have been videocalling by this very morning.