How do you make the projection screen go black?

[trainer07]

For presentations, I have my laptop hooked up to a projector. How can I
prevent the projector from projecting what is on my laptop screen while I am
getting ready for the presentation (i.e. finding the location of my
presentation on my laptop, etc.)? I just don't want the audience to see what
I am doing on my laptop until I am ready to present the presentation. At
that time, I would want the projector to project the image on my laptop.

 

[Bob I]

Start by reading the documentation for the laptop and the projector.

 

[Echo S]

Toggle the Fn key and the number key for the display. The number key is
different on different makes of laptop. Look for a little screen icon on the
numbers, and chances are, that's the one you want. Press Fn while you press
that number. The system should cycle through three views -- laptop only,
projector only, and laptop + projector together -- each time you press
Fn+number, it will go to a different view.