No sound, cannot unmute Master Channel with alsamixer
I am running KDE 3.5 with the 2.6.15 kernel on a Debian system. My sound has recently stopped working and i don't know why. I updated my system (including a new version of alsa-utils) and then the sound working for a little while. It has stopped working again. I have run alsaconf several times, it seems to work just like it used to. I tried using alsamixer to check the levels, and the Master channel is muted, and won't allow me to unmute it. Does anyone know why this is ?