Aug 31, 2017  Apple Footer. This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the. Mar 25, 2019  For a Desktop Mac: iMac, iMac Pro: Unplug the power cable. Wait for about 15 seconds. Plug your Mac back in and leave it for about 5 seconds. Start your Mac in a normal fashion. Enter your password — a surprising trick that works. Though it looks counter-intuitive you may try this solution when your Mac screen goes black. On the PC Settings screen, touch PC and Devices. Touch Power and Sleep. At the top of the screen, there is a toggle for Brightness. Slide the toggle to the Off position to disable adaptive brightness. If you are using the traditional Windows desktop: Touch and hold the start button to bring up the Apps screen and touch the Control Panel app. If the room gets brighter, the Mac will automatically brighten the screen to maintain the screen’s readability in the brighter light. If the room gets darker, the screen will darken so the screen isn’t overly bright. This reduces eye strain, and saves power. To see this working, take your MacBook to. In the Photos app on your Mac, double-click a photo, then click Edit in the toolbar. Click Adjust in the toolbar. Do any of the following: Click the disclosure triangle next to Light, Color, or Black & White, then drag the slider until you are satisfied with the look of the photo. Or, to have Photos automatically correct the photo, click Auto.

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So you are trying to wake your Mac from sleep and it just wouldn’t. All you see is black screen on your MacBook Pro no matter what keys you are pressing. Below you’ll find a couple of solutions (mostly based on users’ cases) to bring you Mac back to the light.

Reasons your Mac screen goes black:

• 3rd party apps that expand the screen
• Recently upgraded operating system
• Corrupted display and energy settings
• Cables not connected

Easy fixes for Macbook black screen

1. Adjust your display’s brightness

It’s possible you had accidentally pressed the brightness keys on the keyboard so your screen dimmed down. Could it be your cat stepping on keys? Use F1 and F2 buttons to light black screen on your Mac.

2. Check if the Power is on

Examine your charger cable is intact and if your Mac is charging. Is the green light on? To rule out the power issues, check if your Mac produces any noise — from the hard drive or fans. If you still see black screen on Mac, read on.

3. Disconnect all peripherals

Remove all external devices like printers or external drives. These devices may start their own dialogues which could interfere with your display settings.

More solutions if your MacBook Pro won’t turn on

Force restart your Mac

In most cases forcing your Mac to restart helps to fix it if your Mac won’t boot. The variance of this issue is your Mac not waking up after sleep. Try to open and close MacBook lid and press a few keys on a keyboard. It might help, but if it doesn’t in no way you should panic — first let’s perform a quick force restart.

1. Hold down the Power key for about 6 seconds.
2. Wait for your Mac to shut down and press the Power key again.

Reset your Mac’s NVRAM settings

NVRAM stands for non-volatile RAM and is basically a functionality that stores in memory settings for display, speakers, primary startup disk etc. Everything even remotely connected with boot process (like your MacBook won’t turning on) can be set back to factory settings during the NVRAM reset.

To flush NVRAM settings:

1. Shut your Mac down.
2. Press the Power key.
3. Wait for your Mac to start loading.
4. When you hear a startup sound, hold down Cmd + Option + P + R.
5. Keep pressing the keys until you hear a second startup sound

Do basic Mac maintenance: disk permissions and Login Items

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Did resetting NVRAM make the trick? Now, that your display is back to the light, you should be able to do a bit of maintenance under the hood of your Mac. In many reported cases, removing old cache files and broken login items helped to prevent the “black screen” problem. Oftentimes, the reason for your Macbook black screen problem is broken disk permissions not allowing your Mac to boot normally. A good solution for this is to use the app called CleanMyMac on your machine and run Repair Disk Permissions command.

1. Download the app (it’s free to download)
2. Install it and go to Maintenance module
3. Tick Repair Disk Permissions and click Run

From my experience, it’s the easiest way to optimize hardly-accessible parts of your Mac.

Another possible culprit — the corrupted Login Items. Truth is, some apps like antivirus software would inadvertently sneak into the list of your startup programs; if something goes wrong with the app, it will then affect your Mac’s booting. So, it makes sense that you check your Login Items list and uninstall the unwanted app — both too can be done with CleanMyMac’s free version.

Zap your Mac’s SMC settings

SMC is System Management Controller. What it controls is temperature, lights, keyboard, fans, and many other side-processes. According to Mac support forums, resetting SMC helps in 90% of the cases when your Mac’s screen goes black. To perform this trick follow the tips below.

For a MacBook with a non-removable battery:

1. Shut your Mac down.
2. Connect your Mac to a power outlet.
3. While your Mac is still shut, Press Shift + Option + Control and Power key at the same time.
4. Let go of the keys and boot your Mac again.

For a Desktop Mac: iMac, iMac Pro:

1. Unplug the power cable.
2. Wait for about 15 seconds.
3. Plug your Mac back in and leave it for about 5 seconds.
4. Start your Mac in a normal fashion.

Enter your password — a surprising trick that works

Though it looks counter-intuitive you may try this solution when your Mac screen goes black. Still with your Mac’s black screen on startup, enter the password — as if you would do normally. Now press the Return key. Lots of users have reported that this option helped to bring their Macs to life.

App To Brighten Screen Macbook Pro

A variance of this trick has been found on many Mac forums. Once again it implies that you press the keys on your Mac in a “blind” mode, hoping that it will light up.

App To Brighten Screen Macbook

1. Press the Power key — just once to summon the restart dialogue.
2. Press S key to send your Mac to sleep.
3. Press and hold the Power key to perform a forced shut down.
4. Wait for about 15 secs and start your Mac as usual.

MacBook asking you to reset password on bootup?

It may happen that your Mac became unresponsive and asks you to reset password. However, after following all the on-screen instructions and changing your password, nothing happens — you still see the black screen. Don't worry, there is an easy fix.

When the screen is black, shine the light behind the display through the Apple. This will help you see the login icon and put the cursor in the correct place. Then just login and the screen will come back.

The last-ditch solution to MacBook black screen

Re-install the macOS

The lion’s share of issues we deal with on our computers are software-related. MacBook display not working is not an exception. So it makes sense that you update all your apps to their latest versions including the macOS.

Here is the guide on how to quickly re-install the macOS:
For macOS Sierra
For macOS High Sierra
For macOS Mojave

If all of the above didn’t work, let go of it and take your Mac over to the service — you’ve done all you could. We hope this article was fun and helpful — feel free to share.

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Sounds like the auto brightness is flaking.

Try this:

1. If your screen is dirty, try cleaning it.
2. double click the Home button and scroll the app tray to the left and check the brightness setting (its the slider on the left)

App To Make Your Screen Brighter

If that isn't helpful:

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1. Open the Settings app, go to Brightness & Wallpaper. If Auto-brightness is On, turn it off. If it is off, reset the brighness using the slider.
2. Rest the iPad: Simultaneously hold down the Home and On buttons until the iPad shuts down. Ignore the off slider if it appears. Once shut down is complete, turn the iPad back on using the On button. In some cases it also helps to double click the Home button and close all apps from the tray before doing the reset.
3. Turn auto Brightness back on (if you want it on)

How To Brighten Screen Windows

Nov 9, 2012 11:17 AM