What are you using for your Audio?
Onboard stereo output?
Also do you have an audio input as well?
Just curious because I am working on a similar setup.
I am kind of bummed to hear the egalax drivers don't work since I have a compatible screen I will be trying to use under linux as well.
My screen came with the source code for drivers that are supposed to work with the 2.4 or 2.6 Linux kernel but I haven't tried it yet.
I will be using 12.04 Ubuntu with 2.6.35 kernel on my ARM board (Not a Panda)