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How to fix vertical lines on MacBook screen

Are you puzzled by the appearance of lines on your MacBook screen? Don’t fret! It’s a common issue that can be caused by various factors, but with the right steps, you can often resolve it yourself. Let’s dive into understanding why those lines are there and how you can fix them.

Understanding the Problem:

When you notice lines on your MacBook screen, it’s usually a sign of an underlying issue with either the software or hardware. Here are the main culprits:

  1. Software Glitches: Sometimes, your MacBook’s operating system can encounter hiccups that manifest as graphical anomalies, like lines on the screen.
  2. Hardware Problems: Issues with the graphics processing unit (GPU) or physical damage to the screen can also lead to the appearance of lines.
  3. Connection Issues: Loose or damaged connections between the screen and the motherboard can disrupt the display, causing lines to appear.
  4. Physical Damage: Accidental drops or bumps can harm internal components, resulting in vertical lines on the screen.

How to Fix It:

Now that we understand the possible causes, let’s explore some DIY solutions:

  1. Check Temperature: Overheating can affect your MacBook’s display. Power it off and let it cool down.
  2. Restart Your MacBook: A simple reboot can often resolve temporary software glitches.
  3. Check for Software Updates: Ensure your macOS is up to date, as software updates may include fixes for display problems.
  4. Reset the SMC: Resetting your MacBook’s System Management Controller (SMC) can help with hardware-related display issues.


Lines on your MacBook screen can be frustrating, but they’re often fixable with the right approach. By following these simple steps, you can troubleshoot and potentially resolve the issue on your own, saving time and hassle.


1.Why are there lines on my MacBook screen?

Lines on your MacBook screen can be caused by software glitches, hardware problems, connection issues, or physical damage.

2.How can I fix lines on my MacBook screen?

You can try troubleshooting steps such as checking the temperature, restarting your MacBook, checking for software updates, and resetting the SMC.

3.Do I need professional help to fix lines on my MacBook screen?

In some cases, if the issue persists after trying DIY solutions, it may be necessary to seek professional repair services to diagnose and fix the problem effectively

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