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I have 2 external monitors connected to a win7 desktop. My displays are setup as "Extend displays to both monitors".

Only one of the monitors is connected to a UPS.

When the power goes, I want to use a commandline/hotkey to duplicate the display on both monitors.

Appreciate your help.

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1 Answer 1

up vote 1 down vote accepted

Use Windows + P:

It is used to adjust the presentation options of the display on your computer or projector.

enter image description here

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