How do I get rid of vertical lines down the right hand side of the monitor?

Rohlbunch

How do I get rid of vertical lines down the right hand side of the monitor?

Puraw

https://community.acer.com/en/discussion/727942/how-to-get-rid-of-vertical-lines

Subject: Vertical lines on monitor — likely ribbon cable or panel fault

Hi Rohlbunch,

Vertical lines on the right side of an external monitor are usually caused by one of the following:

🔍 Common Causes

• Loose or oxidized ribbon cable inside the monitor (between the LCD panel and logic board)
• Panel degradation — especially if the lines are persistent and don’t flicker
• Signal input issue — try swapping HDMI/DP cables and ports to rule out GPU or cable faults

🧪 Quick Tests

• Connect the monitor to a different PC or laptop. If the lines persist, it’s a monitor issue.
• Try a different cable and port (HDMI vs. DisplayPort).
• Gently press or flex the monitor bezel near the affected area. If the lines flicker or shift, it’s likely a ribbon cable seating issue.

🛠️ Possible Fix

If you’re comfortable opening the monitor:

1. Power off and unplug the monitor.
2. Remove the back panel carefully.
3. Locate the ribbon cable connecting the LCD to the board.
4. Clean the contacts with isopropyl alcohol and reseat the cable firmly.

Here’s a helpful video walkthrough:🎥 How to Fix Acer Monitor Vertical/Horizontal Lines

If the monitor’s under warranty, it’s best to contact Acer support for inspection or replacement.