I have Ubuntu 10.04.4 installed in my machine ( Acer 3810 T). With some recent kernel update (present kernel is 18.104.22.168) there is a problem with the microphone sound when I am using Skype. While making calls, I am able to hear the person on the other side, however I am not audible to the contact. This problem started when there was a kernel update from 22.214.171.124 to 126.96.36.199. I have searched the different forum questions where suggestions have been made to make PulseAudio Volume the default for Skype. I have install the above mentioned sound mixer, however still the problem remains. The AUDACITY recording tells me that the system microphone is otherwise fine. Hence right now I am clueless as to what might be the problem and the only thing I can conclude is there some bug in the recent kernel updates that I made.
Any immediate suggestion for solving this issue would be of much help !