With the Dell Vostro 1520 I was able to fix this by grabbing the latest alsa-drivers git snapshot from the following url
http://www.alsa-project.org/main/index.php/Download
Just scroll down and grab a recent snapshot. Then I installed them with
./configure make sudo make install
and the microphone started working with good signal.
With the Dell Vostro 1520 I was able to fix this by grabbing the latest alsa-drivers git snapshot from the following url
http:// www.alsa- project. org/main/ index.php/ Download
Just scroll down and grab a recent snapshot. Then I installed them with
./configure
make
sudo make install
and the microphone started working with good signal.