How to Fix Black Line on Lenovo Laptop Screen in 2024

Key Takeaways
  • A black line on a Lenovo laptop screen can be caused by various issues, including physical damage, software glitches, or problems with display settings and connections.
  • Simple troubleshooting steps to fix a black line include performing a static discharge, checking and securing cable connections, and adjusting display settings for proper screen resolution and refresh rate.
  • If basic troubleshooting does not resolve the issue, updating graphic drivers, booting in Safe Mode, or seeking professional help for possible hardware damage are recommended next steps.

As you take out your Lenovo laptop for a business presentation or a casual movie night with friends, your excitement dims at the sight of a black line on the laptop screen. Apart from the embarrassment, the damage can put you under severe stress, especially if you saved up for months before. Yet, amidst the shock, take a deep breath; it’s not the end of the world, nor the demise of your beloved laptop.

Typically the initial thought is a damaged display panel, however, many software-related issues can also be the reason which ultimately interferes with the system’s performance and delays your task at hand. Therefore, it’s important you immediately inspect the root cause and explore the potential fixes of the issue.

Black Line on Laptop Screen Lenovo
Black Line on Laptop Screen Lenovo

What Does a Black Line on a Laptop Screen Mean?

At its core, the black line on a laptop screen is either a single horizontal or vertical band that may appear for various reasons. However, that is not the only case for this scenario. For others, there may be a series of black lines which may even vary in density and width, depending on the degree of the catastrophe.

Now, if you’re not the clumsy type who drops their phone ten times a day and laptop a few, the situation can be tackled directly from the comfort of your home with the perfect guidance. But even if hardware damage is a possibility, a black line on your laptop screen is not an issue that marks the end of your laptop journey.

Black Line on Laptop Screen Lenovo
Multiple black lines on laptop screen

READ MORE: How to Troubleshoot and Fix Black Lines on Your Monitor? ➜

Why is There a Black Line on My Laptop Screen?

If the black line isn’t impacting your vision or the laptop’s performance, you may not consider it a major issue that needs more attention than is already being given. However, such issues can escalate into long-term annoyances, particularly if internal components are out of place.

To address the problem though, you must first identify the primary culprit. Check for any signs of physical damage (if you don’t recall causing it yourself) to rule out external hardware defects. Other common reasons may include:

  • Dead Pixels: Physical damage causes dead pixels that no longer display any color and appear to grow, resulting in a black line.
  • Faulty Graphics Driver: An outdated or faulty graphic display driver may cause display issues such as black lines on your laptop screen.
  • Loose Cables: The connection of your display screen to the motherboard might be interrupted because of loose connection between the cables.
  • Software Glitches: A corrupted software or minor software glitches affecting certain areas of your display.
  • Display Settings Issue: An incorrect refresh rate, screen resolution, or scaling settings causes issues with your display.
  • Defected Internal Components: A cracked or broken LCD screen panel resulting from mishandling.

READ MORE: 7 Easy Way to Fix Horizontal Lines on HP Laptop Screen [2024] ➜

How to Fix Black Line on Lenovo Laptop Screen

Starting out with simple and easy fixes should be your top-most priority. A simple restart of your laptop can do wonders and eliminate any temporary and minor glitches that may have caused a black line on your Lenovo screen.

But if that doesn’t work out for you, there are several other methods that you can try to troubleshoot your problem.

1. Perform Static Discharge

Your laptop may retain residual static electricity even after it’s shut down, which can sometimes build up and interrupt the normal functioning of the display circuitry. This interference affects signal transmission from the motherboard to the screen, resulting in the appearance of a black line on the screen. The only way to resolve this is by performing a static discharge.

To do so, simply power off your laptop and disconnect all external devices, such as the HDMI cable, power cable, mouse, or keyboard cable.

For Lenovo laptops with detachable batteries, remove the battery as well before proceeding.

Once your laptop is free from all external connections, press and hold down the Power key for about 60 seconds. After that, reattach all the cables and allow your laptop to charge for a while before checking to see if the display issue is resolved or not.

Power Button
Press the Power button on Lenovo laptop

2. Check Cable Connections

The connection between your laptop’s display panel and the motherboard is established through a ribbon cable. When this ribbon cable becomes loose or damaged due to wear, physical trauma, or a sharp sudden bend, it can disrupt the transmission of electrical signals, leading to black lines or dead pixels on the screen.

Therefore, a straightforward method is to check the cable for any signs of tears or bends. If you notice that it’s loose, you may tighten it and see if that fixes your problem. Otherwise, replacement is your only option.

Black Line on Laptop Screen Lenovo
Check the cable

3. Check Display Settings

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It’s obvious that laptop screen issues are often directly linked to display settings. This includes mismatched screen resolution, refresh rate, or scaling settings. Screen resolution controls the number of pixels displayed on your screen.

If it’s set to a value higher than what is recommended, there can be a discrepancy between the display screen and the output signals from the graphics hardware, resulting in display stretching and visual artifacts.

Similarly, when the refresh rate is not configured to the recommended value, the display either refreshes the image too quickly or too slowly, leading to tearing of the display and the appearance of horizontal or vertical black lines on your laptop screen. This issue occurs more commonly when an external monitor is connected to your laptop.

It’s important to note that deviations from the standard values commonly become an issue in incompatible or low-grade laptops or when the system is too outdated.

  1. Press Win + i keys from your keyboard to open Settings.
  2. Go to Display.
Display settings
Select Display from Windows settings
  1. From the next window, change the Display resolution to its Recommended value.
  2. Also, click on Advanced display to tweak the refresh rate and solve the black line issue you’re facing.
display resolution and advanced display settings
Select the Recommended value from Display resolution

4. Update Graphic Drivers

The hardware components or system settings aren’t the only factors responsible for your display output. It’s also linked to the display or graphic drivers, which serve as a bridge between the operating system and the GPU. These drivers require regular updates to perform at their best and avoid all sorts of issues.

However, when this demand is ignored by the user, becoming outdated and corrupted is ultimately written in their fate, after which, they’ll fail to process graphical data correctly, possibly resulting in black lines on your screen.

But you know what they say, it’s never too late. And the same applies to Lenovo laptops when talking about their display issues.

  1. Press the Win + R keys from your keyword to open the Run command box and type in ‘devmgmt.msc’ in the text field.
  2. Then, hit the Enter key to launch Device Manager on your laptop.
  3. Double click on Display adapters to expand it.
Display adapters in Device Manager
Select Display adapters from Device Manager
  1. Afterward, right-click on your graphic driver and select Update driver.
Update display driver
Select Update driver in Device Manager
  1. Once the new window opens, select whether you want to update your graphic driver to the latest version either manually or automatically and follow the on-screen commands to finish the process.
Update driver
Select an appropriate method to update Display driver

READ MORE: How to update graphics driver in Windows? (AMD, Nvidia, Intel) ➜

5. Boot in Safe Mode

Booting into Safe Mode allows the device to run its OS at a basic state without any external services and applications. This mode is to troubleshoot any problem interfering with the system functioning.

If the black line appearing on your Lenovo laptop screen is due to a faulty software driver, conflicting apps, or misfigured display settings, booting into Safe Mode will help you diagnose the problem and look for further solutions.

  1. Start by pressing Windows + i to launch Settings on your laptop.
  2. From the left pane, go to the System tab.
  3. Then, select Recovery.
Recovery in Windows Settings
Select Recovery from Windows Settings
  1. Under the Recovery options, click on Restart now next to Advanced Startup.
Restart Now
Click on Restart now button
  1. After that, click on Restart now again.
  2. Now select Troubleshoot and choose Advanced options.
  3. From the options, click on Advanced settings and select Restart.
  4. Once the Startup Settings window appears, press F4, F5, or F6 according to your needs. Your device will boot into that specific mode.
Startup Settings
Choose a suitable option from Startup Settings

Once you’ve booted the device in Safe Mode and the line appears differently or completely disappears, this confirms that the problem is related to the device’s software. Try deleting any recently installed programs after which the black line issue started appearing. Alternatively, you can attempt to restore your system to a previous point, but this only works if you had enabled saving restore points earlier.

6. Seek Professional Help

If the physical damage is severe and the black line on your Lenovo laptop screen continues to grow, the only option left is to get your laptop screen replaced. In such a case, you’d be fortunate if your product is under warranty; otherwise, you’ll need to lighten your wallet a bit for quality repair.

Black Line on Laptop Screen Lenovo
Seek professional help for screen repair

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The display of a laptop is a crucial element that cannot be ignored (quite literally!). Even the slightest issue can ruin your entire viewing experience, if not the entire laptop itself. So, if the software-oriented solutions do not work, it is definitely hinting towards a hardware fault, meaning that the black lines have become a permanent fixture unless, of course, you’re considering a repair or replacement.


What are some causes of a damaged Lenovo laptop screen?

Although a Lenovo laptop screen gets damaged mainly due to accidental physical impact, there are also various other reasons due to which it can happen. This includes liquid spills, excessive temperatures, wearing with age, manufacturing defects and software malfunctions.

Is a Lenovo laptop screen repairable?

Generally, the severity of damage determines if a laptop screen can be repaired or not. If the damage isn’t that serious, a Lenovo laptop screen can be repaired by changing individual components by a professional technician.

Is it suggested to replace a broken laptop screen?

If the damage to your laptop screen is affecting its usability and performance, it’s usually recommended to get it replaced by a certified technician. Moreover, it’s best to get it done from the laptop’s manufacturer under warranty coverage.

How can you prevent damage to a laptop’s display screen?

There are several steps that you can take to ensure that there’s no damage to your laptop screen. Never put heavy items on your laptop, and keep your laptop in a padded sleeve while carrying it. Additionally, use a lint-free cloth to regularly clean your laptop display screen and don’t eat or drink near your laptop.


Kamil Anwar

Kamil is a certified MCITP, CCNA (W), CCNA (S) and a former British Computer Society Member with over 9 years of experience Configuring, Deploying and Managing Switches, Firewalls and Domain Controllers also an old-school still active on FreeNode.