Contact your laptop vendor.
On any laptop I have ever used the Fn function key option has always
permitted Laptop only, Other display only, or both.
"starworks" <starworks@xxxxxx> wrote in message
> When I connect my laptop to a projector, the projector becomes my primary
> monitor and my laptop screen goes black. The function key combo won't work
> switch displays. I can't switch the displays in the change display panel
> (i.e. set up my laptop as the primary monitor - the option is greyed out).
> When I turn the presentation feature on in the control panel it doesn't
> detect another monitor that I can switch the settings for. I need to do
> presentations with my desktop on both my laptop and the projector. Does
> anyone know a work around? Thanks