I have a W2K machine, all SP's & fixes installed.
In the weekend, I decided to do some housecleaning & sort out all the cables etc under my desk. I unplugged all cables, sorted them, an plugged them all back.
The USB devices, quite a lot of them, were not plugged back into the sockets/hubs they originally were in.
When I boot now, the BIOS recognizes the keyboard & mouse, but at the login-screen neither the keyboard nor mouse are recognized.
The keyboard works, I've tested on an other machine.
My take on this is that usually when you move a device from one USB socket to another, the device drivers are often reinstalled. Could it be that the system wants to reinstall the device drivers, since I moved the keyboard to another socket, and can't do this, since I haven't logged in?
(I've tried to put all back as they were, but the keyboard is still dead. I've also
tried all alternative sockets to stick it in, still no go)
The interesting bit is that a normal PS/2 keyboard also does not work.
It works in the BIOS/setup screens, it works when I press "f8" at the W2K screen,
but does not work at the login screen.
I've tried all three "Safe Modes", the keyboard is still dead in all of them.
The PS/2 keyboard is dead, too.
PS/2 works as far as enabling me to select "Safe Mode".
With only USB keyboard plugged in, pressing F8 has no effect..
I tried unplugging everything but a PS/2 keyboard, still the same.
The "toggle" keys/lights such as Caps/Numlock etc stay frozen after W2K boots, they can be toggled as far as the F8 prompt, with the PS/2 keyboard.
I didn't muck with the BIOS when the problem arose, I just unplugged cables, and plugged most of them back in, in different sockets from where they originally were. I also removed one USB hub, and one game controller.
Since the problem started, I've been into the BIOS and tried to put everything as vanilla as I can, making sure that PS/2 mouse is enabled, that USB legacy is OK. I'm not overclocking (now), and I've even reduced the USB speed.
What really worries me is that I apparently have lost support for PS/2 keyboard, I would think that "always" was good.
I'm not sure what type of keyboard I had when I installed the OS, it *might* have been the USB, but I'm not sure..
1) With only USB keyboard installed:
PC boots normally to W2K login screen. Keyboard is dead, no lights, nothing. The keyboard is not broken, though, since it works on an other PC.
2) With only PS/2 keyboard installed:
PC boots, lights come on, I can toggle lights until W2K starts the graphical part of the boot process, they the lights freeze in the state they were in.
Before W2K boots, I can use the PS/2 keyboard in the BIOS and in the F8-boot options menu.
The PS/2 keyboard also works normally on an other W2K machine.
PS/2 mouse, and USB legacy support is enabled in the BIOS.
And I doubt there is a HW problem - the keyboard works without problems before W2K graphical boot starts.
At the W2K login-window the mouse does NOT work, there is no cursor.
When the PC boots, the BIOS reports the mouse if it is connected on USB.
(I started this problem in the W2K group, had no go there: