Internal speaker and knoppix

Hi!

Internal speaker dosen't work on knoppix (4.0.2, 3.9, 3.8.2). It works fine on FC4 on the same HW.
lsmod shows no pcspkr module and I couldn't find module pcspkr on knoppix CD.
Is there some boot time cheat code enabling internal speaker?

thanx,

Damijan

Its even the same with Knoppix 5.1.1. I do a echo -e "\a" and I hear
nothing :/

Is there a pcspeaker-kernel module?