My HP Elitebook 8470p normally is used with a Logitech K120 USB keyboard (just a standard USB keyboard). As I recently bought a new mouse (Logitech Performance MX) that has a unifying receiver, the laptop does not recognize the USB keyboard anymore, as soon as I boot with the unifying receiver plugged in.
If I plug the receiver in after booting, the keyboard continues to work. But always unplugging it, booting, plugging it is no solution to make it work.
Any ideas?
