What happened to my monitor? Acer Nitro VG240Y sudden horizontal lines on screen

Vile

I only had this monitor for 5 months. One night, after playing video games, I started browsing, then it started showing these horizontal lines and tearing across the screen. Even when I lower the refresh rate, or connect it to a different device, or disconnect it from any device, the defect is still there. I've also tried unplugging it overnight — the defect disappeared when I turned it back on but returned after less than a minute.

Can someone help diagnose what happened to the monitor and how to fix it? I also found a user here who appears to have same exact issue in the same time frame.

AnhEZ28

@Vile

Seems like the LCD panel is faulty. You can contact local Acer or the shop for the warranty.

Yowgene01

How about mine, @AnhEZ28?

I have 2 monitors with the same variant (VG240Y) that have the same problem. The other monitor's lines however are on the other side.

I tried using the troubleshooting methods I found here/google. But seems not to be working though.

billsey

There are have been several different models in the VG240Y line over the years, with different specs for each and different hardware inside. Always the first test is to see if the artifacts show when the monitor is first turned on with the computer disconnected. If they are there in the splash screen then we know the issue is internal, if they only show up when the computer is connected it's more likely on the computer side.

Yowgene01

If I disconnect my nitro 5 from the Monitor, it would go into a black screen for some seconds, the lines can be seen but hard to see it though. So I tried using dead pixel backgrounds and these are the results for each monitors:

Axxo

• Turn your monitor off and on again. It seems like a basic fix, but it can often correct any screen glitches, such as horizontal lines.
• Restart your computer. A quick restart can fix a variety of tech issues and could get rid of any flickering lines on your screen.
• Try a different monitor. If possible, try connecting to a different monitor or screen. It can help you determine if the lines are caused by your computer’s screen or the computer itself.
• Check your monitor while it’s disconnected. Keep your monitor powered on, unplug it from your computer, and look for any flickering or lines on its screen while it’s disconnected. If you see any kind of distortion, this means that your monitor is damaged.
• Detach and reattach the keyboard. If you have a computer that uses a removable keyboard, remove it, wait a few seconds, and reattach it.
• Close and reopen your laptop. Close your laptop’s screen, wait a few seconds, and reopen it again slowly. Look to see when the lines begin to appear on the screen as you open the laptop. If the lines only occur at a certain angle, the cause is likely damaged wiring.
• Use your laptop on a hard surface. Soft surfaces such as on a blanket or tablecloth can cause overheating, resulting in screen flickering and lines.
• Install the latest operating system updates. Old software conflicting with newer hardware could cause the lines on your computer screen.
• Check the monitor connection. Ensure all of the cables are securely connected, and watch for any improvements in screen image quality while you’re inspecting the cables. If you notice the image improves or worsens while touching the connecting cable, it may need replacement.
• Disconnect the monitor. If you’re using an external monitor, disconnect it from your computer, wait several seconds, and reconnect it.
• Remove magnets and electronics. If you have other electronics or magnetic devices near your computer, screen, or the connecting cables, move them somewhere else as they may interfere with the connection and cause the lines.
• Clean your computer and monitor. Dust may be causing your computer and its monitor to overheat and create visual distortions.
• Change the screen resolution. Whether using a Windows or Mac computer, try changing its screen resolution.
• Calibrate your monitor. This process should only take a few minutes and can help optimize your monitor for use with your computer and its environment.
• Change your monitor’s refresh rate. Switching to another refresh rate setting can help with lines and screen flickering.
• Update your device drivers. Check for driver updates for profiles associated with your monitor and screen.
• Run a troubleshooter. Open Settings and select System > Troubleshoot > Other troubleshooters and run the Video Playback and Program Compatibility troubleshooters. If you get presented with any recommendations for other troubleshooters, run those too.
• Reset your monitor to its factory settings. If you’re using an external monitor or screen, use its built-in settings, not your computer’s settings, to reset it to its factory settings. You can usually access these settings via a physical Settings or Menu button on the computer monitor itself.
• Contact official support. Contact the support for your computer’s manufacturer and inquire about a repair or replacement.

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