Have you ever had a black MacBook screen with pink, purple, green, or blue colored lines? Don’t worry; a hardware problem isn’t usually the cause. In this essay, I’ll examine the potential causes of these lines and provide workable remedies to restore your MacBook to its typical, flawless condition. So let’s start right now!
Why Does My MacBook Screen Have Coloured Lines?
If you have a MacBook Air or Pro, you may have occasionally seen a black screen with colored lines. This problem could arise for a number of different reasons, from hardware issues to software bugs. Among the most frequent causes are:
- Graphics card issues: Your MacBook s graphics card, also known as the GPU, is responsible for rendering images and videos on your screen. Overheating or malfunctioning GPUs can cause display problems like black screens with lines.
- Damaged display cable: The cable that connects your MacBook s display to its motherboard can become damaged or loose over time, leading to display issues.
- Corrupted system files: Your MacBook s system files can become corrupted due to various reasons, such as malware infections or software bugs. This can cause display issues like black screens with lines.
- Incompatible drivers: Installing incompatible or outdated drivers can cause display problems on your MacBook, including black screens with lines.
- Outdated software: Running an outdated version of macOS or outdated apps can cause display problems on your MacBook, as well as entire system freezes.
- Physical damage: Drops or impacts can cause physical damage to your MacBook s display or other hardware components, leading to display issues.
Why Did My Mac Screen Go Black With Pink Lines?
Let’s talk about the pink lines on your MacBook screen first. Pink lines can happen for a number of reasons, including hardware problems, software errors, or even something as straightforward as a loose connection. These annoying pink lines can be caused by software issues like incompatible drivers or damaged system files.
However, your MacBook’s sGPU could be overheating and resulting in display problems. For the appropriate answers to this error, keep reading.
Why Did My Mac Screen Go Black With Purple Lines?
Let’s now discuss those enigmatic purple lines. Purple lines on your MacBook screen are similar to pink lines in that they can be caused by either software or hardware problems. Possible causes include overheating, graphics card issues, or a broken display cable. Sometimes, malfunctioning software or an out-of-date macOS version can make these purple lines appear.
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How Do I Fix a Black Screen With Lines on My Macbook Pro?
Before tackling more complicated issues, keep in mind to start with simpler fixes, such as performing a hard reset or updating your software. Of course, you should get assistance from a qualified expert if you are hesitant or uneasy working with your MacBook’s hardware.
1. Perform a Hard Restart
A black screen with vertical or horizontal lines can frequently be fixed by doing a hard restart, but be careful as it might delete any saved data. Press and hold the power button until your MacBook Pro or MacBook Air shuts down entirely to do this. To restart the laptop, wait a few whiles before pushing the power button once more. Watch for any adjustments as this could fix the black screen problem.
2. Check Your Hardware
Look for any obvious damage or loose connectors on your MacBook Pro. A hardware problem, such as a cracked display or a loose connection, could be the cause of the black screen with colored lines problem. Check the wires, ports, and display for any damage indications. You can choose to use Apple Diagnostics to test your Mac.
You should see an Apple Authorized Service Provider or the Apple Store for a professional diagnosis and fix if you discover any hardware problems that you can’t resolve on your own.
3. Boot Into Safe Mode
2 minutes are required.
Safe Mode on your MacBook Pro can be used to find and fix software-related problems. Here’s how to go about it:
- Power off your device and then restart while holding the Shift key.
- Release the key when the Apple logo appears. You might be asked to log into your account twice.
- In Safe Mode, your Mac will run a diagnostic check, disabling any third-party software that might be causing the problem. If the black screen issue disappears, it s likely related to an app or extension that was disabled.
Additionally, you can begin uninstalling any recently installed extensions or applications to get rid of the problem with the colored lines on a black screen.
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4. Reset NVRAM and SMC
Screen, sound, and starting disk preference problems can be fixed by resetting the System Management Controller (SMC) and Non-Volatile Random-Access Memory (NVRAM).
- To reset NVRAM, shut down your MacBook Pro, and then restart it while holding Option + Command + P + R simultaneously.
- Release the keys after about 20 seconds.
- To reset the SMC, power off your laptop and press the Shift + Control + Option + Power button for 10 seconds.
- Release them simultaneously and then press the power button to turn on your MacBook Pro.
See our post on how to reset NVRAM and SMC on Mac and why you need to for more thorough instructions that apply to all Mac models.
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5. Update your macOS
- To update your macOS, boot your MacBook Pro into Safe Mode by powering it off and then restarting it while pressing the Shift key.
- Once in Safe Mode, go to the Apple menu > System Settings.
- Go to General > Software Update. Download and install any available updates.
- Restart your MacBook Pro after the updates are complete to see if the issue has been resolved.
Check out our article to learn how to resolve the issue if there isn’t a macOS update available despite your conviction that there should be.
Although black MacBook screens with colored lines can be annoying, understanding the potential causes is essential for identifying the best fix. You now have the information and resources to address the issue head-on, whether it is a hardware issue, a software bug, or a loose link.
You can always connect one or more external screens to minimize the cost of repair if your MacBook screen becomes unusable.
Remember that even though your MacBook is a strong and useful tool, it occasionally has problems. You can resolve these display difficulties and continue using your MacBook for work, leisure, and everything in between with a little perseverance and knowledge.