fun with projectors

The following conversation is with a Principal of a school having problems with a projector on a laptop:

me;The projectors are just plug and play they should work. It’s not something I can fix remotely if they are not working. If the projector is powering up but not showing a picture they can try holding down the fn and hitting the f4 key.

principal: She does not have the option for display of projector; Sue has the same issue. Could you help?

me:Just to be clear they tried the function f4 combo and it did not work? If that truly is the case then maybe the projector is bad

principal:There computer only goes to F12

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