Keyboard quit when 2.6 kernel (RHE4) installed
When my system was updated from RHE3 to RHE4, my PS/2 keyboard quit working. The kernel in RHE3 was 2.4.21-27.0.4. We've tried two kernels in RHE4, 2.6.9-5.0.5. and 2.6.11-1.14. The keyboard works fine in the BIOS and grub, but quits as soon as Linux is loaded, including in single-user mode (so it's not X or KDE causing the problem). Also works in RHE3 (which we have in a different partition) with kernel 2.4.21-27.0.4, and in DOS. I tried several keyboards by IBM, Compaq, HP, ... and none work. I connected my favorite keyboard via a PS/2-to-USB adapter and it works -- sort of: Somebody forgets which shift keys are down, so typing )* sometimes gets )8. There is the same problem with ctrl and alt keys, so ctrl-d followed by e with the ctrl key held down between the d and e in Evolution doesn't expunge deleted mail -- unless I release and re-depress the ctrl key. Search-again (ctrl-g) in Nedit eventually starts typing "g" instead of searching again. It seems to be rate dependent. If I type ctrl-g, hold down ctrl, and type g again soon, it works. If I wait a few seconds (with the ctrl key down) and type "g", a "g" gets inserted.
The machine is Dell model 530, Dual 1.7 GHz Xeon (using smp kernels) with 2 GB memory.
I've had it, and the keyboard, for several years, without this kind of problem.