How to fix a Mac with white screen

This error can be random, elusive. It usually happens after upgrading your operating system or installing third-party software.

The user also reported several other reasons for the error. We'll look at a few common causes and fix them one at a time. Below is a list of possible causes of your Mac screen white.

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1. External hardware : One of the reasons why your Mac is stuck on a white screen is the use of external hardware plugged into the device. In this case, remove everything but hardware necessary to require a reboot.
2. Mac GPU : One of the other causes of this error is the machine's GPU. The machine does not boot is highly likely the GPU has problem and caused the screen to go blank.
3. Recent updates : In some cases, errors can occur when recent updates cause old files to become corrupted and the system to no longer boot.

We've covered some of the most bloody causes of Macs going blank, let's move on to solutions that can solve the problem.

Solution 1: Remove any external hardware attached to the machine

Before coming to the complicated and difficult solutions, you should try removing all the external hardware connected to your Mac. They are often the bullies, causing you problems. Remove all the mouse, keyboard and other unnecessary hardware to reboot the machine. If the machine boots up this time, it's likely the problem is with one of the other hardware.

Solution 2: Boot through Safe Boot

Safe Boot is a feature widely used to fix errors when the cause is unknown. Safe Boot starts up your Mac with no third-party software running and just the basics for the operating system to pop up.

Follow the steps below to start your Mac in safe mode:

1. First, make sure the Mac is turned off.
2. Then, power on your Mac by pressing the power and middle buttons while pressing the Shift key on your keyboard.
3. Then, when you see the Apple logo appear, release the Shift key .
4. So the Mac has been booted into Safe Boot.

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If your Mac is able to boot successfully, it means something in the machine is causing the screen white issue. You should delete all the trash ( Trash ) as well as free up space on the hard drive to ensure enough space to store applications installed.

Solution 3: use integrated GPU

Turns out, the GPU is also the one that keeps the Mac from not booting smoothly. Lots of users have reported this issue and there is an extremely easy solution to fix it. Essentially, all you need to do is force your Mac to use the integrated GPUs by heating up the main GPU.

Solution 4: Use Utility

Sometimes a couple of corrupt files or a bad hard drive can prevent your Mac from booting up normally and get stuck in a blank screen. Starting Disk Utility will be helpful in finding errors in your hard drive and fixing them. Follow these instructions to start Disk Utility:

1. First, make sure your Mac is turned off.
2. Now, turn on the power button and hold Command + R simultaneously until you see the Apple logo appear on the screen.

This is only suitable for Macs running macOS 10.7 or higher. If the old machine, you can use the Internet Recovery by pressing the key combination Command + Option + R . As the name implies, you must have access to the Internet when using it.

If done correctly, the Mac's Utility window appears on the desktop.

Select Disk Utility and then the hard drive. Finally, click on First Aid to begin the checking and fixing process.

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Solution 5: Reset NVRAM or PRAM

NVRAM or PRAM is the small amount of memory that stores different Mac settings. Lots of error cases occur due to memory location and then reset them to solve the problem. Follow these steps:

1. First, turn off your Mac then pop up, press and hold Option + Command + P + R .
2. Hold the key combination until you hear a warm-up sound.
3. Hold on until the Mac reboots again. Do not release the key until you hear a warm-up sound.
4. At this point, release the key.

Isabella Humphrey

Update 15 September 2020