I'm running Fedora 14 and have installed a Creative Audigy SB0790 card which runs off the CA0106 driver. The sound output is just fine when playing internal sources like sound files and CD's. However, when I plug my iPod into the microphone port, I get no output from the card. I can see that the signal is getting in as pavcontrol, gnome-volume-control, and gstreamer-properties all show activity. In fact, I can hear the signal when running gstreamer-properties, but not after I close it. Is there some special setting or app needed to play music through the mike port? Thanks.

Have you tried running it through a standard line in jack instead of the microphone jack?

And as far as the microphone, are you trying to hook it up to the jack and that is it? Being a microphone jack, you need software in able to playback and record from it.

There's only one input jack which serves for both the microphone and the line in. I haven't tried a mike, just the line in from the iPod. As I said, gstreamer-properties in test mode plays out music from the iPod, and in regular input mode, activity shows, so signal is getting in. However, no sound issues from the speakers in regular mode.