How to Solve Vertical Blue Lines Appearing on Laptop Screen

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Check if the Error is Software or Hardware-based

To fix the vertical blue lines on your laptop screen, you need to find the root cause. The image below shows a blue line appearing randomly on a laptop. You can determine whether it is a software-related or a hardware issue in a couple of ways. Try both options to make sure what exactly you are dealing with.

Method 1: Take a Screenshot

This is the easiest way to find the origin of the problem. As you may know, a screenshot captures whatever visuals are displaying on the screen at a time. If it’s Windows bug, then the blue line will appear on the captured screenshot too.

Step 1: Press theWindows + Print Screenkeys together to take a screenshot of your desktop window.

Step 2: Now, navigate toWindows Explorer > Pictures > Screenshots. If you can see the vertical blue line in the screenshot, then its software related otherwise its hardware breakdown.

In the image above, you can see that there is no blue line appearing on the screenshot, which leads us to believe that the issue may be related to hardware. Now follow the second option to confirm your findings.

Method 2: Entering BIOS

BIOS (Basic Input/Output System) is the program a personal computer’s microprocessor uses to get the computer system started after you turn it on. BIOS is free of the Operating System and as a result, it can be helpful in such tasks.

Step 1: First off,shut down your laptopcompletely.

Step 2: Now,press the power keyandkeep pressing down F2 keyor the respective keys shown on the screen when the system boots.

Once you’re in the BIOS, you should be able to verify if the line is visible there or not. If it’s a hardware issue, then the vertical blue line will be visible.

How to Fix Vertical Blue Lines

Most of the Windows bugs are tied to outdated drivers. Thankfully, it’s quite easy to check for an update to the latest drivers. Here’s how.

Step 1: Press theWindows + I keyson your keyboard toopen Settings.

Step 2: Inside, switch to theWindows Updatetab on the left side. Then, click onCheck for Updates.

Alternatively, you can manually check and update the drives from the device manager.

Step 3: To do that,presstheWindows key + R shortcutto launch the Run dialog box. Type in the following command and pressEnter.

Step 4: In the device manager,expand Display adapters. Then,right-click your graphics card deviceand selectUpdate driver.

Step 5: SelectSearch automatically for updated driver software.

And that’s it. Windows will automatically search online for new drivers, and then install them. Once it is installed, you will be asked to restart your PC. Close the window and restart the computer.

For Hardware Issues

Now, that’s a tricky one and requires some tools and expertise to solve it. First, the blue lines may be appearing due to a loose display cable. The cable that connects the screen to the base of the laptop usually runs through the rotating hinge. And due to the continuous opening/closing of the hinge, the cable may need re-positioning.

Warning:

You can follow theguide hereto remove and attach the same cable with a little caution. And if it doesn’t work then you will need to buy the new display cable for your laptop and replace the old one by following the same guide.

However, the display cable could only be one of the possible issues. The LCD panel might be faulty, or there might be a shorting in the laptop’s motherboard.

In either case, the best solution would be to visit a service center. A professional will be able to closely examine why there are vertical blue lines on your laptop’s display and accordingly offer you a repair or replacement. If your laptop is under warranty, we suggest visiting the official service center only.

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Last updated on 09 July, 2024

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