How to turn off LCD when using external monitor?

Laptop

Laptop
Laptop computer Forums (Audio, General Hardware, Video)

How to turn off LCD when using external monitor?

  • Hi,

    Can someone please tell me how to turn off the LCD when using an external monitor on my Latitude C540/C640. I'm using NT4, if that makes any difference.

     

    Regards

     

    Jim

  • Fn + F8

     

     

  •  Fly, Fn + F8 only turns the external monitor off...I need to turn the LCD off

    Thanks

    Jim