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Author Topic: How to turn off an iMac screen when using an external monitor?  (Read 396 times)

tsinsf

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How to turn off an iMac screen when using an external monitor?
« on: December 02, 2020, 01:54:17 am »

I have a new 2020 27 inch iMac, but I would prefer to use my (connected by display port) Nec monitor for photo editing. Is there a way to turn of the iMac screen, similiar to clamshell mode with a Macbook? This function in Switch Res X doesn't work in Big Sur! Any work arounds would be appreciated (other than throwing a towel over the screen or turning down the brightness).
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BobShaw

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Re: How to turn off an iMac screen when using an external monitor?
« Reply #1 on: December 02, 2020, 05:04:27 pm »

I don't know if it is possible, but doubt that it would be a good idea anyway. Some things always happen on the main screen, like log in and notifications.
Personally i love the benefits of a 54" screen you get from two monitors and most programmes let you have browse on one screen and edit on another.
I actually use my 2013 iMac screen more than the Eizo anyway.
If you must do it then just put the second monitor in front of the first I guess. (:-)
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