Well I have a 1005HA that was experiencing the Skype microphone problems as well, but now it's working beautifully. I tried the suggestions above:
1. sudo apt-get Install linux-backports-modules-alsa-karmic-generic
2. sudo apt-get install pavmeter
3. sudo pavucontrol, unlocked the channels and set a one channel to base and the other to max, then locked them again
4. The Skype test call works beautifully when testing microphone playback!
Well I have a 1005HA that was experiencing the Skype microphone problems as well, but now it's working beautifully. I tried the suggestions above:
1. sudo apt-get Install linux-backports -modules- alsa-karmic- generic
2. sudo apt-get install pavmeter
3. sudo pavucontrol, unlocked the channels and set a one channel to base and the other to max, then locked them again
4. The Skype test call works beautifully when testing microphone playback!
Good luck to those of you still struggling!
-Nickolai