I installed Redhat 4.0 (upgraded kernel to 2.0.27) on my laptop a
while ago, but recently noticed the following problem. The built-in
microphone seems to be constantly on, i.e. I can hear an echo of
myself through the speakers and if I tap the microphone I get this
clicking sound in my speakers. How do I turn it off (on a permanent
my sound card is ess audiodrive, configured as sb-16 compatible.