USB keyboard w/ PS2 adapter not getting reconized

[videobruce]

Using a USB leyboard with a PS2 adapter (not to tie up a USB port), the system doesn't reconize the keyboard. It does with a USB mouse using a PS2 adapter. It is a Compaq keyboard if that matters.

I will try the keyboard on another box when I can and try the other adapter also. In the mean time any ideas?

[ripken204]

ive tried that same exact thing you have and mine didnt work either. so i guess you that you just cant do it.

[videobruce]

Because it is a USB keyboard or because it is a Comtrash USB keybord?

Or could it be a bios issue on the MB?

[ripken204]

just b/c its usb. i have a great bios so i dont think its that, unless theres some unknow option.

[jroc]

I have a Logitech USB..that I use with the PS/2....are you sure you have the keyboard drivers for PS/2 installed....and yes the bio's could be checked also for 'keyboard' detect and PS/2 enabled.

Edited August 10, 2006 by jroc

[videobruce]

It reconizes the USB mouse (with a adapter) in the PS2 port ok.

[puntoMX]

Okay, relax... that PS/2 adapter didn´t come with the keyboard, so forget it, it will not work. You are trying the imposible .

had to edit my post, my English is getting bad

Edited August 10, 2006 by puntoMX

[ripken204]

Okay, relax... that PS/2 adapter didn´t come with the keyboard, so forget it, it will not work. You are trying the imposible .

had to edit my post, my English is getting bad

so the adaptors are different internally? b/c i tried a mouse adapter and it didnt work.

[puntoMX]

It´s the chip inside the keyboard that doesn´t work with USB, some mice also have the same thing.

For 90% a PS/2 to USB adapter doesn´t work if it doesn´t come with the input-devices.

[LLXX]

The "adapter" doesn't really have any circuitry in it, it just changes the pinout.

Most mice now are dual-mode, they can sense which mode to operate in (USB or PS/2) depending on which port it's plugged into.

Keyboards. I don't know of any dual-mode ones.

[ripken204]

okay, good stuff to know guys, thx.

[puntoMX]

Keyboards. I don't know of any dual-mode ones.

Logitech for example has them like almost 10 years or so now, green for the mouse, purple for the keyboard, like the color code of the motherboards, I think the colors are from 1997 or so...

[gamehead200]

PS/2 mice and keyboards have different pinouts... That's why you can only plug them into their specified ports on the back of your computer. Same goes for those little PS/2 adapters. There are ones made specifically for mice (green) and ones made specifically for keyboards (purple/blue)!

[videobruce]

Thanks for the input. This isn't my system or I wouldn't have a USB keyboard in the first place............

[videobruce]

and ones made specifically for keyboards (purple/blue)!

You have seen violet adapters? I was told there are only the green (mouse) versions.