How Do I Switch the Primary Monitor in OS X 10.8.5?

I installed a second copy of Mountain Lion to a new SSD and it’s using my secondary monitor as the primary display.

How can I switch what Mountain Lion used as my primary display?

Thank you.

Mac Pro

Posted on Jan 21, 2019 1:19 PM

Top-ranking reply

MrHoffman

Level 10

149,353 points

Posted on Jan 22, 2019 1:11 AM

Apple Menu > System preferences > Displays, and drag the white bar to the desired primary monitor.’

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2 replies

Top-ranking reply

MrHoffman

Level 10

149,353 points

Jan 22, 2019 1:11 AM in response to TheUncannyValley

Apple Menu > System preferences > Displays, and drag the white bar to the desired primary monitor.’

Jan 22, 2019 11:10 AM in response to MrHoffman

Thank you MrHoffman, that did the trick.

The principal of my junior high school was named Mr Hoffman. Just had a flashback.

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How Do I Switch the Primary Monitor in OS X 10.8.5?

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