Do you still suffer from the problem of iMac screen going black? This post will show you how to solve it.

1. Black Screen On Mac Computer
2. Second Screen Tv
3. Game Blacks Out Second Screen Mac Via Hdmi
4. Game Blacks Out Second Screen Mac And Cheese

Mac Tips & Issue Fixes

In order to help you solve your screen goes black a few seconds problem, we have these solutions below: Solution 1: Try a Windows Key Sequence to Wake the Screen. Simultaneously press the Windows logo key + Ctrl + Shift + B. If Windows is responsive, a short beep will sound and the screen will blink or dim while Windows attempts to refresh the screen.

“I just got a iMac 20″ 2.1GHz (2006) at first it ran well no problems, but now the screen randomly goes black, system still runs just black screen, if left alone it will go to sleep and can be awaken just fine as if nothing happened but later its black again. any advise would be Appreciated”

Dec 16, 2019  With Apple TV, you can mirror the entire display of your Mac to your TV, or use your TV as a separate display. To turn on AirPlay, follow these steps: Make sure that your TV is turned on. Choose in the menu bar, then choose your Apple TV. If an AirPlay passcode appears on your TV screen, enter the passcode on your Mac. If you get a blank built in monitor after going full-screen on an external one. Put the app you still want to use (like Safari for example) in full screen mode on built in monitor BEFORE putting your game full-screen on an external one. This way you can play your games full screen and still browse a bit in Safari for example. Feb 02, 2018  As illustrated onthis video, the second display randomly turns black and comes back again (no power-off on the blinking monitor). The behavior occurs either when I plug the cable to the second USB-C port, or via OWC Thunderbolt 3 hub. It happens randomly with random frequencies.

iMac screen going black is a quite common malfunction when we use Macs. I have collected several high frequent scenes when iMac screen turns black:

Scene 1. iMac screen goes black randomly, and after turning black, Mac will shut down automatically. When you restart Mac, it will get right.

Scene 2. iMac screen turns black continuously no matter how many times you restart it.

Scene 3. When you are doing something on Mac, for example, watching a movie, the screen goes black suddenly, but the system runs still in background.

Scene 4. It is ok with turning on MacBook Pro plugging in AC adapter, however, when you unplug the power cable, the MacBook screen will immediately go black and shut down.

These four situations are not all about iMac screen changing black. But we can solve all of them with the following method.

Also Read:
How to Copy iPhone Photos to Mac >
How to Make Your Mac Run Faster >

How to Fix iMac Screen Goes Black

When we encounter any one of above-mentioned situations, or others not mentioned about iMac screen going black, we can fix it with just three simple steps.

Step 1 Shut down Mac, if it is still running. And make sure of that the AC adapter is connected to Mac.

Black Screen On Mac Computer

Step 2 Start Mac > Press command + option + P + R simultaneously > Stop pressing after hearing open sound four times, and iMac screen will be normal.

Step 3 If the step 2 does not work, don’t worry, here is the other solution. You need Press shift + control + option + power button simultaneously for one or two seconds. After stop pressing four keys, push power button to start Mac, and iMac screen will not go black.

How to Fix iMac Screen Goes Black − Step 3

Bonus Tip: How to Remove Mac Junk with MacClean

It is necessary to clean computer junk regularly, no matter you are a Window computer user or a Mac computer user. Unlike remove junk in Windows, most users do not know how to clean system junk or other junk in Mac. In this tip, we recommend a safe and easy tool to solve this trouble – MacClean.

MacClean is an easy-to-use OS X optimizing tool that works on all Mac computers: MacBook, MacBook Pro/Air, iMac, Mac mini, Mac Pro, etc. It can scan your Mac to tell how many junk here in your Mac computer. And you can choose to clean System Junk, Internet Junk or other junk such as malicious cookies according to your needs. To scan your Mac, download MacClean now.

How to Scan and Clean Mac Junk with MacClean

Step 1 Download MacClean on your Mac.

Step 2 Open up MacClean > Choose System Junk, Internet Junk or other terms according to your need > Click Scan to go.

Step 3 After scanning, MacClean will list all the junk that is ready to be removed, you can clean the .

Second Screen Tv

The Bottom Line

Game Blacks Out Second Screen Mac Via Hdmi

iMac screen going black will not bother you any more with this method step by step. And if you would also like to know how to tell if your Mac has a virus, try MacClean.

Game Blacks Out Second Screen Mac And Cheese

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