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My iMac High Sierra fails to detect my 2nd external monitor after various attempts in settings, unplugging on/off, resetting Pram etc.

My iMac High Sierra 10.13.3 fails to detect my 2nd external monitor after various attempts in settings, unplugging on/off, resetting Pram etc.

What solution does Apple offer?

iMac, iOS 10.3.3, Viewsonic VP2765-LED Display

Posted on Mar 17, 2018 1:43 PM

My iMac High Sierra fails to detect my 2nd external monitor after various attempts in settings, unplugging on/off, resetting Pram etc.

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