Horizontal or Vertical Lines on Your Laptop Screen? Fear Not! Here’s How to Fix Them

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Nothing is more frustrating than trying to use your laptop only to be met with annoying horizontal or vertical lines on the screen. These lines can obstruct your view, making it difficult to work, watch videos, or browse the internet. Fortunately, this common issue can often be resolved with a few troubleshooting steps.

In this blog, we’ll guide you through the possible causes and solutions to fix those pesky lines on your laptop screen.

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Possible Causes of Lines on Your Laptop Screen

Before diving into the fixes, it’s helpful to understand what might be causing the issue. The lines on your screen could be due to:

  1. Loose or Damaged Cable Connections: The cable connecting the laptop screen to the motherboard might be loose or damaged.
  2. Graphics Driver Issues: Outdated or corrupted graphics drivers can cause display problems.
  3. Screen Damage: Physical damage to the screen itself can manifest as lines.
  4. Overheating: Excessive heat can affect the display and cause lines to appear.
  5. Hardware Failure: A failing graphics card or other internal hardware issues can lead to screen problems.

How to Fix Horizontal or Vertical Lines on Your Laptop Screen

1. Check for Loose or Damaged Cables

If you’re comfortable opening your laptop, this step might help you determine if the issue is a loose or damaged cable.

  • Power off your laptop and unplug it.
  • Carefully open the laptop casing to access the screen connection cable. Refer to your laptop’s manual for specific instructions.
  • Inspect the cable for any visible damage or loose connections.
  • Reconnect the cable securely and ensure it’s firmly in place.

2. Update or Reinstall Graphics Drivers

Corrupted or outdated drivers are a common cause of display issues. Updating or reinstalling your graphics drivers can often resolve the problem.

  • Open Device Manager: Press Win + X and select Device Manager.
  • Expand the Display Adapters section.
  • Right-click your graphics card and select Update driver.
  • Choose Search automatically for updated driver software.

If updating doesn’t work, you might need to reinstall the driver:

  • Right-click the graphics card in Device Manager and select Uninstall device.
  • Restart your laptop. Windows should automatically reinstall the correct driver.

3. Check for Physical Damage

Inspect your screen for any visible physical damage. If the screen is cracked or damaged, the only solution might be to replace the screen.

4. Prevent Overheating

Overheating can cause various hardware issues, including display problems. Ensure your laptop is well-ventilated and the cooling system is functioning properly.

  • Clean the vents and fans to remove dust buildup.
  • Use a cooling pad to help dissipate heat.
  • Avoid using your laptop on soft surfaces like beds or couches that can block vents.

5. Test with an External Monitor

Connecting your laptop to an external monitor can help determine if the issue is with the screen or the internal hardware.

  • Connect your laptop to an external monitor using an HDMI or VGA cable.
  • Power on your laptop and switch the display to the external monitor.

If the lines appear on the external monitor as well, the issue is likely with your laptop’s graphics card or other internal components. If the external monitor displays correctly, the problem is likely with your laptop screen.

6. Run a Diagnostic Test

Many laptops come with built-in diagnostic tools that can help identify hardware issues.

  • Restart your laptop and enter the BIOS or diagnostic mode (usually by pressing F2, F12, or Esc during startup).
  • Run the display or hardware diagnostic tests and follow any instructions provided.

7. Seek Professional Help

If you’ve tried all the above steps and the issue persists, it might be time to seek professional help. Contact your laptop manufacturer’s support or take your laptop to a certified technician for further diagnosis and repair.


Horizontal or vertical lines on your laptop screen can be a major inconvenience, but they’re often fixable with a bit of troubleshooting. By checking for loose cables, updating drivers, and ensuring your laptop is properly cooled, you can usually resolve the issue on your own. If all else fails, professional assistance is always an option. With a little effort, you can have your laptop screen back to normal and enjoy a clear, uninterrupted display once again.

Different Lenovo Models & Series Repaired By Suraj Computers

  • Lenovo IdeaPad Slim 5
  • Lenovo ThinkPad E15 (Gen 2)
  • Lenovo IdeaPad Flex 3i 11.6-inch Chromebook
  • Lenovo IdeaPad 3i 14-inch Chromebook
  • Lenovo IdeaPad 3i 11.6-inch Chromebook
  • Lenovo IdeaPad Slim 5 Pro (AMD)
  • Lenovo Ideapad S145 (81VD0073IN) Laptop
  • Lenovo Chromebook C330 (81HY0000US) Laptop
  • Lenovo Ideapad S145 (81VD00EFIN) Laptop
  • Lenovo Ideapad S145 (81UT001CIN) Laptop
  • Lenovo Ideapad Slim 3i (81WB0193IN) Laptop
  • Lenovo Ideapad 330-15IKB (81DE01K0IN) Laptop
  • Lenovo Ideapad 3 15IML05 (81WB015GIN) Laptop
  • Lenovo Ideapad Slim 3i (81WB01BCIN) Laptop
  • Lenovo Ideapad 330-15ARR (81D2008WIN) Laptop
  • Lenovo Ideapad 310 (80SM01EFIH) Laptop

Official Lenovo Customer Care Number, Support & Email

You can contact from given numbers respective to your product:

  • 1800 419 7555 (For Idea, Legion & Yoga laptop series) Mon-Sat 10-7pm
  • 1800 572 2224 (Support in buying laptop) Mon-Sat 9-8 pm)
  • 080-67916666 (Whatsapp No. for tablet/Consumer support)
  • 080 67916677 (Whatsapp No. for commercial product support)
  • 080-49064431 (Offer Redemption)

Other Laptop Brand Service:

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