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How to Fix Mac Black Screen?

By Wian LJ | Lasted Updated 2018-08-01 07:26:54
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Did your Mac screen just go black but still powered on? How did this happen and what should you do? Learn how to fix black screen on Mac in this brand new article.

You will never know what will happen while working on your Mac. There are quite a few surprises along the way that can really get you so frustrated and annoying.

One of these is the Mac black screen issue wherein it leaves you with no choice at all but to fix it immediately. 

Today we will give you complete guides on how to fix black screen on Mac. Read along to find out.

How to fix Mac Black Screen

So, let’s get started…

Part 1. What cause Mac Black Screen?

The black screen issue can be caused by a lot of reasons, so before you jump into troubleshooting the problem, you need to determine what really caused it.

Some users say that it is the hardware problem; could be but rarely the case. Most of the time, it is the software that has a lot of bugs and fixes.

We noted the possible black screen causes below:

1. MacOS upgrade

2. Unknown errors

3. Corrupted display settings

4. Frozen screen

Lots of users who did an upgrade on MacOS Sierra had experienced black screen issue upon boot up.

This is the most common cause of the black screen and it can be fixed in no time. Find out how to fix black screen on Mac, in the next parts below.

Part 2. How to Fix Black Screen on Mac?

Before we go ahead and fix any issues on Mac, first make sure that your computer isn’t just sleeping on you.

You see, your computer saves energy by turning off the screen display once idled. It goes back on when you hit any key or tap on the trackpad.

Another thing to check is the power source. Check the cables and socket if connected and has power. If it starts charging, turn on the device and see if the screen boots normally.

If you are still seeing the black screen on Mac, then proceed to the troubleshooting below. Follow these different methods below to fix black screen on Mac issue.

Method 1: Enter Mac password.

Let’s begin with a simple method to fix black screen on Mac and that is to simply enter the password. Even if your screen is black, try entering your password like the usual. Some users reported that this is the quick-fix for the black screen issue.

If entering the password did not fix the problem, then get yourself ready for some advanced troubleshooting.

Before moving on, you need to ensure that you have already backed up your Mac as part of the safety measures.

Method 2: Reset the NVRAM (Non-Volatile Random Access Memory).

For every Mac models, the steps are quite different on resetting the NVRAM. Check out these guides below:

For newer Macs:

Power off Mac completely

Turn on Mac while simultaneously pressing and holding the keys: Command+ Option+ P+ R

Keep holding them for about 20 seconds

Release the keys

For older Macs:

Turn off Mac completely

Power it back on

Upon hearing the boot up sounds, press and hold Command+ Option + P+ R

Release the keys when you hear the boot-up sounds again

If resetting the NVRAM didn’t help, try resetting the SMC, check out how!

Method 3: Reset SMC (System Management Controller).

Next is to reset the SMC if you are experiencing any of the following as per Apple support:

Mac doesn't respond when you press the power button

Mac sleeps or shuts down unexpectedly and you can't turn it back on

To do the reset, follow these steps:

Built-in batteries

Shut down Mac completely

Power back on while pressing and holding the keys: Shift, Control, and Option

Release the keys and restart the device

For removable batteries

Turn off Mac completely

Remove the battery

Hold the Power button for about 5 seconds

Return the battery

Power on device

Method 4: Boot up in Safe Mode.

If resetting the SMC did not work, try booting in Safe mode. Here’s how:

Turn off Mac

Turn it back on but pressing and holding the SHIFT key

Release the SHIFT key when you see the login window

When the issue is fixed, restart the device and boot normally

If booting up on safe mode did not resolve the issue, try entering single user mode to fix the black screen!

Method 5: Single User Mode.

Some users claim that using Single User mode helps fix black screen on Mac. Here’s how to run Single user mode:

Shut down your device

While powering on the device press and hold the keys Command+ S to enter Single User mode

Now inside the Single user mode, enter the following: /sbin/fsck -fy and then press Return

Type in /sbin/mount -uw / and then press Return

Enter rm /Library/Preferences/com.apple.loginwindow.plist and then press Return

Enter rm /Library/Preferences/loginwindow.plist and then press Return

Enter rm /private/var/db/.AppleUpgrade and then press Return

Exit the Single user mode by entering reboot and then press Return

That’s it! These are the most effective steps so far to fix black screen on Mac. You can try any of the above-mentioned methods to resolve this issue on Mac. If all else fails and still your screen is black, don’t hesitate to contact Apple support or go to the nearest Apple store.

Part 3. Recommendations.

Finally, when you have fixed the black screen issue, try to run a maintenance check on your entire system for some corrupted files or login files that may have been the cause.

We may never know what these programs are until they start to act strange on our devices. For you to be able to completely check your Mac safely and conveniently, use Mac Cleaner by iMyMac.

Mac Cleaner is a safe and effective program that runs diagnoses and gives comprehensive reports on your device status; the best part is it is free to download.

Enjoy an all-in solution for your Mac by removing unnecessary files, corrupted items, browser cleanup, shredder and many more.

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