TSG: Display has vertical lines

Symptoms

The display shows vertical lines.

• It can be a small number of them or many

• They may be grouped closely together in one vertical band

• The lines may be spread all over the screen

• The lines may be of various colors: white, black, random colors

Examples

Causes

There are many things that might cause this. Some can be addressed, and some are fundamental hardware problems that cannot be fixed.

Where the issue might originate

• The display panel itself

• The configuration the computer is using for the video signal (refresh rate and resolution)

• The cable used to transmit the video signal

• The ports

• The GPU sending the video signal

  • Sometimes GPUs get into a weird state

  • sometimes GPUs have thermal problems

Things to try or investigate

• Question: Do the lines appear even when the monitor initially starts up and shows its "Welcome" message?

• Question: Do the lines appear when there is no video signal being sent to the monitor (for example, the HDMI cable is disconnected)?

• Question: Do the lines appear for a while and then disappear

• Test with different cables

• Test with different video configurations

  • Different refresh rates

  • Different resolutions

• Test with a different video signal source (Xbox, another laptop, a camera)

• If you are getting a video signal from your GPU, try the motherboard

Summary

Once you've completed your investigation, you might have solved the problem.

Try contacting customer support.

You should be prepared, though, that if the problem is a fundamental issue with the display panel, there is no way to fix it.

Discussions

r/techsupport - Monitor has colorful vertical lines sometimes but it isn't a hardware issue/card isn't artifacting - 2023-10-19

r/techsupport - Monitor has colorful vertical lines sometimes but it isn't a hardware issue/card isn't artifacting 2023-10-19

r/pchelp - Monitor has vertical lines on start up. Why? 2026-04-12