> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/troubleshoot/tsg-display-vertical-lines.md).

# 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

<figure><img src="https://1457921496-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNde0PQIvNcFZNVxuTO0G%2Fuploads%2F4Gk3f7ALKq0j96YmSmGo%2Fdisplay-vertical-lines-example-1.webp?alt=media&amp;token=258f3c1f-0ba0-46a5-b923-91301dc1edd9" alt="" width="375"><figcaption></figcaption></figure>

<figure><img src="https://1457921496-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNde0PQIvNcFZNVxuTO0G%2Fuploads%2FL8lq35QdiNIegopVaczr%2Fdisplay-vertical-lines-example-2.jpg?alt=media&amp;token=0daddeab-c3a1-44ab-a1e1-f51af63a30e4" alt="" width="563"><figcaption></figcaption></figure>

## 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](https://www.reddit.com/r/techsupport/comments/17bpya6/monitor_has_colorful_vertical_lines_sometimes_but/) - 2023-10-19

[**r/techsupport - Monitor has colorful vertical lines sometimes but it isn't a hardware issue/card isn't artifacting**](https://www.reddit.com/r/techsupport/comments/17bpya6/monitor_has_colorful_vertical_lines_sometimes_but/) 2023-10-19

[**r/pchelp - Monitor has vertical lines on start up. Why?**](https://www.reddit.com/r/pchelp/comments/1sjco64/monitor_has_vertical_lines_on_start_up_why/) 2026-04-12