HT202351: OS X: How to use multiple displays with your Mac in Mountain Lion and earlier
Learn about OS X: How to use multiple displays with your Mac in Mountain Lion and earlier
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All replies
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Helpful answers
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Apr 21, 2016 5:31 PM in response to Scott Sowderby Duane,What type of cable are you using?
Have you tried a different cable?
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Apr 22, 2016 1:11 AM in response to Scott Sowderby lllaass,How is the monitor being connected to the Mac?
What output on the Mac are you using?
What specific cable or adopter?
What input on the monitor?
You are selecting the right input on the monitor, right?