USB Keyboard - num lock led disappears

Alexander Raab alexander.raab at
Thu Jan 13 20:30:27 UTC 2005

Douglas Ohlhorst wrote:

> Hello All,
> I have noticed that while using a Dell USB keyboard the led for the 
> num lock turns off, even though the num lock is still on. The light 
> will turn on after pressing the num lock twice (i.e. off, then on). 
> Does anybody know what would cause this behavior?

Hi, I think that is a powersafe mode. I have noticed that during using 
an usb-mouse on a laptop.

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