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Why has my external monitor gone black?

Just upgraded to High Sierra and it has caused my external monitor to go black. Only the mouse is visible on the screen. I am using a J5 Docking station on a MacBook Pro. What is the resolve for this issue?

iMac, Mac OS X (10.7.3)

Posted on Feb 27, 2018 7:46 PM

Best reply

Community User

Posted on Feb 28, 2018 7:11 AM

I recommend following the troubleshooting steps in this article from  support:

Get help with video issues on external displays connected to your Mac - Apple Support

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Why has my external monitor gone black?

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