Karl Katzke

This has worked on OpenSuse 10.3, Fedora 9, and all recent versions of Ubuntu…

Problem: Audio doesn’t work when the machine is docked in a Dell dock.
Solution: You need to enable the IEC958 Switch in your Volume Control application.

HowTo:

1. Click Computer, More Applications, and Voume Control
2. Click Edit, Preferences, and check IEC958. Then click Close.
3. Switch from the Playback tab to the Switches tab, and check the IEC958 checkbox.

I also clicked the IEC958 Default PCM box on my OpenSuSE 11 machine; this gave me control over the dock’s specific output port as opposed to the headphone port on the laptop.