Vertical lines on screen [monitor]

If you’re experiencing vertical lines on the screen of your LG monitor, it can be indicative of a potential display issue.

Cause and Symptoms

Vertical or horizontal lines on screen
Faulty or damaged video cable

Try this

➔ Check if the pins are damaged or have foreign objects. If they do, replace the cable with an authentic cable.

Check the cable signal condition of the device connected to the monitor and check the spec or setting of external device.

Are there vertical or horizontal lines appearing on screen?

➔ Remove the monitor signal cable

If [No Signal] screen shows vertical lines in the same location, then it requires accurate inspection by an LG Electronics technician.

When removing the signal cable from the PC

※ If [No Signal] screen displays vertical lines in the same location, then the monitor will require accurate inspection by an LG Electronics technician. Please contact LG representative for nearest authorized service center.

Are there many vertical lines like rainbows?

➔ Remove the monitor signal cable and connect it again.

Did you use the cable that came with the monitor?

If you use a cable that doesn't meet the product's specifications, it may cause issues such as noise, no display, etc.

Overheating – Excessive heat can sometimes cause display issues, including vertical lines. Ensure that the monitor is properly ventilated and not placed in an area with restricted airflow.

Additionally any physical damage to the monitor such as impacts or pressure applied to the screen, can result in vertical lines.

※ If the same problem persists after the above remedies, then have it accurately inspected by an LG authorized service center technician. Contact LG representative for the nearest service center.

This guide was created for all display monitor model types. Images or content presented herein may differ from your product.

Vertical lines on screen [monitor]