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Apple Computing Products:
macOS - Operating System
iMac Black Screen
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<blockquote data-quote="Imagesinspace" data-source="post: 1437372" data-attributes="member: 267688"><p>Connecting a second monitor worked for me. It allowed me to shut down the Mac using the shutdown command under the apple menu. When I restarted the iMac the monitor came back to life.</p><p>This doesn't solve the problem of a perpetually sleeping screen but gets you out of it so you can keep working.</p><p>BTW my monitor stayed black even after a forced restart (holding down the start button until it restarts). The Mac must be remembering the settings for a sleeping screen and start up with this in place.</p></blockquote><p></p>
[QUOTE="Imagesinspace, post: 1437372, member: 267688"] Connecting a second monitor worked for me. It allowed me to shut down the Mac using the shutdown command under the apple menu. When I restarted the iMac the monitor came back to life. This doesn't solve the problem of a perpetually sleeping screen but gets you out of it so you can keep working. BTW my monitor stayed black even after a forced restart (holding down the start button until it restarts). The Mac must be remembering the settings for a sleeping screen and start up with this in place. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
iMac Black Screen
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