How to Fix Black Line on Laptop Screen: 5 Easy Fixes Explained

In this post, we’ll explain the reasons behind the black line on laptop screen issue and how to fix it. We will discuss several solutions that you can explore.

What Causes Black Lines on Laptop Screen?

Laptop display issues, such as black lines on laptop screen, are encountered by many users. However, the root of the problem can differ. Here are some common reasons.

• Loose or damaged display cable
• Broken or cracked LCD/LED screen
• Outdated or corrupted graphics drivers
• Faulty or failing GPU (graphics card)
• Dead or stuck pixels on the screen
• Physical pressure or accidental damage
• Software glitches or system errors

There are only a few typical causes for the black line on laptop screen. But, there could be other causes as well.

Also read: iPhone 11 Black Lines on Screen: Here’s How to Fix It

How to Fix Black Lines on Laptop Screen

A black horizontal line on laptop screen is annoying. If it’s due to hardware issues, there’s no solution; you can only repair or replace it. If there are issues with the driver, software, or settings, they will be resolved within a few minutes.

How do you determine whether there’s an issue with the hardware or not? We will check the defective display and then walk you through the steps to solve the issue.

1. Check for a Faulty LCD Display

You can check the LCD display issue using LCD BIST (Built-In Self-Test):

1. Turn off your computer.

2. Hit the “D” key on the keyboard and hold it for a few seconds. Then, switch on the laptop while pressing the key.

3. You’ll see an animated test screen. Examine all the parts of the LCD closely, particularly that black area.

If you notice a black line on laptop screen or other irregularities during this examination, then it is a problem with the LCD. So you must replace or repair.

However, if there’s no abnormality in the test, you can follow the steps below to resolve the laptop display problem with vertical lines.

2. Adjust Screen Resolution

If your screen resolution is not properly optimized for the screen, it may misbehave and show irregularities. Try using an optimal resolution, then see if the issue persists.

1. Right-click on the desktop and select Display Settings.

2. You’ll see the option of opening a new window. Find the Display Resolution and select the downward arrow.

3. Choose the resolution you prefer.

If the black line or screen flickering problem has been solved after changing the resolution, there is no need to change anything else. If not, proceed to the next option.

3. Update Graphics Drivers

Outdated graphics drivers can cause issues and conflicts. Make sure the drivers are up-to-date.

1. Open Device Manager.

2. Click the downward button in the Display Adapters.

3. Right-click on your graphics card, then select Update Driver.

4. There will be a new window. Select Search automatically for drivers, or click the alternative if you’ve downloaded the driver to your computer.

4. Perform a Hard Reset

A hard reset can help fix a black line on laptop screen if the issue is related to software or system settings. It eliminates static electricity, which ensures the proper supply to all parts and components.

1. Turn off your laptop and then remove the adapter and all devices connected to it.

2. Carefully remove the laptop’s battery. Follow the standard procedure.

3. Press the power button, and remain on it for 20 minutes. The remaining power will be depleted. power.

4. Now you can connect the battery and the device to the laptop. Turn on your laptop and check that the screen is working properly.

Also read: Blurred Screen on Laptop? Easy Troubleshooting Guide for Windows 10

5. Run Windows Troubleshooter

If the previous solutions did not resolve the black line on laptop screens and if you’re still trying to fix the problem, try using Troubleshooter. It may uncover the root cause of the black line on laptop screen issue, making it easier to correct it.

1. Start typing “settings” in the search bar, and then open Settings.

2. Click Update & Security.

3. From the top side, select Troubleshoot. Next, select Additional Troubleshooters.

4. There are numerous troubleshooting options. Run Video Playback and Program Compatibility.

Warp up

A horizontal black line on laptop screen is a common issue for many users. The first is to check for a defective display. If you notice any issues during the test display, ensure the display is fixed or changed. However, if there’s no problem with the display, you can try the suggestions we’ve discussed.

FAQs: Black Line on Laptop Screen