Fix a crash GPU that causing green and purple squares on the screen in an easy step. Screen flickering, whether horizontal or vertical, can be alarming. Most of the time, our immediate reaction is to think that the computer will crash or that the display has experienced an unrecoverable problem.
These lines are usually red, black, or green. Although they may appear to be the same, their causes may differ.
If your screen has green horizontal lines, try the troubleshooting procedures indicated below. This problem can be caused by both software and hardware faults, so knowing what is causing it is the first step.
The problem hardware or software
Green horizontal lines on your computer screen can be caused by both hardware and software issues. As a result, to apply the correct repairs, you must first determine whether the problem is hardware or software-related.
The first suggestion is to unplug and re-plug your display cable to see if it helps. If that fails, try deleting your monitor’s driver through Device Manager first.
To do so, hit Win + X and pick Device Manager from the menu that appears. Expand the Monitors section once it’s open.
You’ll notice a few entries here if you have more than one monitor. Check the model name of the monitor that is causing the problem, then right-click on it and select Uninstall.
After you’ve deleted the display driver, restart your computer. When you restart your computer, the display driver will reinstall itself. If the problem was caused by the monitor driver, this should resolve it.
Booting into your BIOS is another technique to see if the problem is software-related. If the problem does not appear in the BIOS, it is caused by software.
Shut down your computer before entering BIOS. Now, boot it up by pressing the power button and holding down the F2/Del/F10/F12 keys as it boots up.
The key you must hit will differ depending on the model of PC you own, so examine the documentation to determine which one applies to yours.
If the problem does not appear in BIOS, restart Windows and try one of the software-related remedies listed below.
How Do You fix a crash GPU causing green Purple squares on the screen
- Update or Roll Back the Graphics Card Driver
- Modify the Screen Resolution
- Upgrade the BIOS.
Whether the Problem Is Hardware-Related:
If the problem looks to be hardware-related, you can try changing the monitor cables to determine if they are the culprit. You can also connect the monitor to another computer to see if the problem persists.
If you see green lines on the other computer, a technician should examine your screen to see whether it needs to be repaired or replaced.
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Update or Roll Back the Graphics Card Driver
If the problem is software-related, the first thing you should do is run troubleshooting procedures for the graphics card driver that is installed on your machine. Several consumers discovered that their monitors were displaying green horizontal lines due to an outdated or damaged graphics card driver.
The simplest way to resolve graphics card difficulties is to update it. However, if you are experiencing other issues, such as Blue Screens of Death and difficulty playing games, your graphics card may require an upgrade, and merely installing the driver may not be sufficient.
This is how you can accomplish it:
- Click Device Manager by pressing Win + X.
- Expand the Display adapters section in the following window and right-click on your graphics driver.
- From the context menu, select Update driver.
- Then, to finish the procedure, click Search automatically for drivers and follow the on-screen directions.
- Close the Device Manager and reopen it to see if the problem has been repaired. If this addresses the issue, you should create a driver backup so that if the problem recurs, you may restore to this condition.
If the problem began after you installed a new driver update, you can restore the driver to its previous version. You can do so by opening the Device Manager window and going to the driver’s properties.
If the rollback button is greyed out, go to the manufacturer’s official website and download an earlier version.
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Modify the Screen Resolution
If you use the wrong resolution for your monitor, green bars may appear. Different sized displays have different optimal resolutions, so look up your monitor type online or consult its user manual to see which resolution it prefers.
Once you’ve determined the ideal resolution, do the following:
- To access the Settings app, press Win + I.
- Go to System > Display and scroll down in the window that appears.
- Extend the dropdown menu to Change the size of the text, apps, and other objects to 100%.
- Expand the display resolution dropdown and select your monitor’s preferred resolution.
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Upgrade the BIOS.
Another solution that worked for users was to update their BIOS. These updates enable the computer to correctly identify hardware components, thereby addressing problems like this one.
To proceed, follow these steps:
- To open Run, press Win + R simultaneously.
- To open Command Prompt with administrative rights, type cmd in Run and hit Ctrl + Shift + Enter.
- Once inside the Command Prompt, input the following and press Enter to execute it.
wmic bios get smbiosbiosversion
- Take note of the BIOS version in the following window.
- Now, navigate to your device’s OEM website and access the download section.
- Fill in your device information to see if there are any updates available.
- Download any available updates.
- To proceed, extract the downloaded package and follow the instructions in the readme.txt file.
Installing a BIOS update should resolve this and other minor issues with the system once and for all.
Final thought
Display issues are the most frightening since they can be caused by either hardware or software issues, and if they are caused by hardware, they may require considerable time and money to correct.
Hopefully, one of the solutions listed above assisted you in resolving the issue or identifying the root cause.