old microphone bug not solved

[kpete]

The microphone of my Acer Aspire One does not work. It appears that the PulseAdio does not collaborate with the Alsa driver. I found this one-year-old unsolved bug report that provides the details better than can do:

[Realtek ALC272X] Recording problem
Ubuntu “alsa-driver” package Bugs Bug #653266

Iwould greatly appreciate a solution to this,

Thanks,

kpete