Originally Posted by adrianlarsson
I have a group of about 20 or so Knoppix boxes, and lately I seem to be getting a problem of the USB keyboards not functioning properly.
Either the entire keyboard locks up when Knoppix starts and only switching to PS/2 keyboard works.
Or the keyboard malfunctions in that pressing a key will make the letter popup 4-5 times while other keys dont work at all.
Anyone can offer a bit of insight?
Well, that is very strange. Which version of Knoppix are you using? I believe some older versions would behave erratically with USB devices (although, USB devices work very well in Linux, unless it is a very old kernel).
I recommend you trying out a newer version of Knoppix (if any) or a different LiveCD, such as Ubuntu.