Whenever you’re not actively working on your Mac, The display will automatically turn off to save power. The same goes for MacBook users who connect an external monitor to run macOS on a larger screen.
However, some users face the problem of Mac screen not turning on after exiting Sleep Mode. Refer to our guide on when a Mac won’t detect an external display. In this post, We will discuss the best fixes for Mac display not working after sleep.
1. Check Screen Brightness Levels.
The first basic solution to fix this problem is to check your Mac’s screen brightness levels. If your Mac’s screen isn’t working properly after going to sleep mode, You should start pressing Function Keys on your Mac to increase screen brightness levels. Even when your Mac isn’t in Sleep Mode, brightness levels can go to minimum.
If you use a MacBook Air or an iMac with a Magic Keyboard; Press the F2 key to increase screen brightness.
If you have a MacBook Pro with Touch Bar, tap the Brightness icon on the Touch Bar.
2. Connect the charger to your MacBook.
If you are facing this problem on your MacBook and you have increased the brightness levels but the screen does not turn on. Your MacBook may need some power to start. You can plug in your charger and wait a few minutes to see if the screen comes back on. If you have a MacBook Air and are experiencing any problems charging it, You can read our post suggesting the best ways to fix MacBook Air not charging.
3. Force restart your Mac.
If your Mac’s screen isn’t open yet, You can try to force restart it by long-pressing the power button or the Touch ID button on your Mac keyboard. You must keep pressing these three buttons until the screen goes blank and your Mac restarts. A force restart can help with many other hardware and software hiccups on your Mac.
4. Reset the SMC.
The SMC or System Management Controller is a chip available for Intel-based Macs or iMacs that controls and stores important details of different hardware functions. Since we’re talking about screen brightness, You can try resetting your Mac or iMac’s SMC to see if that fixes the problem.
SMC Reset M1, M2, Note that this does not apply to Mac models running on M1 Pro or M1 Max chips. Rebooting these Macs works like the SMC reset process.
Step 1: Press and hold the power button until your Mac shuts down.
Step 2: After your Mac shuts down, wait a few seconds and press Shift + Left Option + Left Control. Press and hold the Power Button as well.
Press and hold the four buttons for another 7 seconds. If you turn on your Mac; The original startup chime will play again while you hold down the keys.
When you see the Apple logo; The screen will open normally. If it doesn’t boot after the Apple logo, check the next solution.
5. Reset NVRAM.
Another solution for Intel-based Macs is performing an NVRAM reset. NVRAM, or non-volatile random access memory, is volume; boot disk selection; Stores information like time zone and more. If you can’t get the wake-up screen on your Mac after sleep. You can try resetting the NVRAM. After resetting the NVRAM, Note that you will have to adjust these settings again on your Mac.
Step 1: Press and hold the power button on your Mac.
Step 2: After your Mac shuts down, Press the Power button again to start your Mac.
Step 3: While your Mac is turning on, press Option + Command + P + R for 20 seconds.
Step 4: Release all four keys when the Apple logo appears a second time. This means NVRAM reset is complete. Then, Your Mac will restart.
Step 5: Whether to refresh the screen or not. Check no.
Note that NVRAM reset only applies to Intel-based Macs. M1, M2, M1 Pro, Or restarting a Mac running on an M1 Max chip is equivalent to performing an NVRAM reset.
6. If nothing works, go to the nearest Apple Store.
If none of the solutions work so far. Your Mac may have some display and backlight issues. We recommend visiting the nearest Apple Store to have your Mac screen fixed with a key. Find out if your Mac model is covered under the Apple Care program. No, you should check once.
Although these solutions help you wake up your Mac screen, You can also check out our post explaining why the MacBook doesn’t sleep when the lid is closed.