Samsung Monitor Vertical/Horizontal Lines Fix [Solved!]

Immediately after getting my upgraded Samsung monitor home and hooking it up, I noticed a strange pattern of vertical and horizontal lines running across the screen. 

This was not normal behavior so I started looking for a fix. 

After some research, I found that hardware or software failures might be responsible for these issues on Samsung monitors sometimes. 

Fortunately, there are steps you can follow to troubleshoot and repair your Samsung monitor with vertical/horizontal line issues quickly and easily. 

In this article, we will detail how you can fix your Samsung monitor without having to replace the entire device immediately.

Samsung Monitor Vertical/Horizontal Lines Fix [Solved!]

Samsung Monitor Vertical/Horizontal Lines Fix

A problem with your Samsung monitor might arise due to a variety of different causes. It can be as a result of damaged cables or defective ports, faulty HDMI or DisplayPort connection, corrupt system files, outdated graphics drivers, incorrect refresh rate setting, an issue with the BIOS settings, a corrupted graphics card or a T-Con board that is defective. 

How to fix a Samsung monitor that shows vertical/horizontal lines?

If your Samsung monitor shows horizontal and vertical lines, first you should tighten loose cable connection to fix this problem. 

After verifying proper connectivity of all the cables and ascertaining that they are in working order. 

If they appear fine you may check for the updated version of your graphics driver to resolve this issue.

You may also try adjusting the frequency or checking for irregularities in the BIOS settings. 

If none of these solutions work then it might be time to consider hardware related issues such as bad ports cables or graphic card so contact your manufacturer for assistance. 

Here is a step-by-step process to fix this issue:

  1. Damaged Cables
  2. Defective Ports
  3. Try a different HDMI or DisplayPort
  4. Corrupt system files
  5. Update your graphics drivers
  6. Check Refresh Rate
  7. Reset the BIOS Settings
  8. Replace the graphics card
  9. Defective T-Con board
Samsung Monitor Vertical/Horizontal Lines Fix [Solved!]

1- Damaged Cables

There are frequent damages to the Samsung monitors if they are exposed to the elements.

One common issue is when horizontal or vertical lines appear on display which various factors such as damaged cables and loose connections can cause. 

In case this problem occurs, it is very important to check the cables that connect your Samsung monitor with its power source and video output source because they might get damaged. 

Check for any breaks, fraying, or other signs of wear and tear in case they occur and replace them if needed. 

Also ensure all connections are properly tightened and secured; if they become loose then it leads to lines on your monitor’s screen. 

If replacing the cables does not help then you may need checking your monitor’s ports. 

2- Defective Ports

When Samsung monitors show vertical or horizontal lines, one of the main reasons is faulty ports. 

Any problem with the port such as a loose connection or defective wiring can cause this issue. 

Damaged ports also lead to these kind of issues when your monitor displays vertical or horizontal lines. 

To fix a Samsung monitor showing vertical and/or horizontal lines caused by faulty ports.

You have to check all cables connected to the monitor before anything else and make sure that they are properly inserted and secure in their respective ports. 

If any of them appears loose or damaged, you should replace them and/or repair them immediately. 

3- Try a different HDMI or DisplayPort

When there is a faulty connection between the computer and Samsung monitor, which often causes vertical or horizontal lines to appear on the screen.

One of your first troubleshooting steps should be to try connecting with a different HDMI or DisplayPort cable. 

This might mean connecting the monitor to a different port on the computer or using an adapter such as a USB-C adapter or converter in order to use another type of cable or connection. 

You will also want to ensure that all cables are securely attached and free from debris before proceeding. 

If this does not fix the issue, it may be due to corrupt system files but you can fix that by rebooting your PC into Safe Mode.

4- Corrupt system files

Corrupted system files can lead to Samsung monitors displaying vertical and/or horizontal lines on the screen.

Which may be a result of computer operating system errors like missing or damaged Windows System Files. 

Critical to proper functioning of your computer is the absence of corrupted or damaged system files, so any such errors could cause various visual anomalies and other issues with your monitor. 

A common solution for such problems is to use Windows System File Checker (SFC) utility that scans for and repairs any corrupted system files on your computer by means of a command prompt window in which you type “sfc /scan now” followed by pressing Enter.

5- Update your graphics drivers

In order to replace your graphics drivers in the Samsung monitor problem of verticla/horizontal lines, it is very essential. 

This will help ensure that your Samsung monitor functions optimally and at its best quality all the time. 

Old and incorrect graphics driver can result in distorted or discolored images and physical damage to the screen due to overheating. 

To update the graphics driver for your Samsung monitor, you must go on Samsung website to download the latest software updates available there for download desired by you. 

It is also advisable that you check for any optional upgrades like a compatibility patch or bug fixes available from time to time. 

Once the downloaded reinstallation process is completed, test your new settings before confirming they make an improvement of color accuracy clarity.

6- Check the Refresh Rate

If your Samsung monitor is showing vertical or horizontal lines, it often indicates an issue with the refresh rate settings. 

The refresh rate of a monitor is the number of times per second that the screen draws pictures on its display. 

Optimally, the refresh rate setting of a Samsung monitor must match with the frame frequency of what you are viewing. 

To correct this problem, you need to adjust your Samsung monitor’s refresh rate settings.

So that you get optimal results end see less visual artifacts like screen tearing and choppy motion while watching videos or playing games. 

You can do this by right-clicking your desktop background and selecting Display Settings from the pop-up menu option. 

Here, there should be an option called “Refresh Rate” where you can change the frequency.

At which Samsung monitors draw images on their screens to improve performance while reducing visual artifacts such as screen tearing or stuttering video or game play.

7- Reset the BIOS Settings

For vertical or horizontal lines appearing on the Samsung monitor’s display, simply resetting BIOS settings is the solution and this process does not require any special knowledge or hardware. 

For first time you must power off your monitor and disconnect it from all power sources. Then press and hold the power button for 10 seconds after which release it. 

After that connect back your Samsung monitor to its power source and turn it back on to reset the device to factory defaults where all vertical or horizontal lines should be disappeared.

8- Replace the graphics card

Replacing the graphics card of a Samsung monitor is an effective way to fix vertical or horizontal lines on the display. 

If your Samsung monitor has any kind of vertical or horizontal lines, it often indicates that there is something wrong with the current graphics card and you will need a new one to replace it. 

Before replacing your old graphic card, you might want to read these detailed step-by-step instructions for opening up your Samsung monitor. 

There may be some differences depending on the model and year of your monitor.

So make sure to check out your user manual for additional help in this regard before proceeding further with the rest of these steps. 

Once you have figured out how to open up your Samsung monitor, carefully install a new graphics card into place and secure it with any necessary screws that are needed for holding everything together properly. 

After installing a brand new graphics card, power on your device again to see te problem is fixes.

If there are still issues with the vertical or horizontal lines persistently showing up because some monitors only work when they are plugged in.

9- Defective T-Con board

When the Samsung monitor vertical/horizontal lines fix is needed, it often involves replacing the T-Con board. 

The T-Con board receives signals from the main board and then converts them into pixel information that gets displayed on the Samsung monitor. 

When it becomes defective, visual artifacts such as vertical and horizontal lines can appear on your Samsung monitor. Replacing the T-Con board should resolve this issue. 

However, additional components may need to be replaced if other underlying issues are detected. 

It is critical to properly diagnose any Samsung monitor problem before you even attempt an repair to ensure that a proper solution is pursued. 


In conclusion, if your Samsung monitor has vertical/horizontal lines, you can troubleshoot your monitor problem by following these steps:

  1. Damaged Cables
  2. Defective Ports
  3. Try a different HDMI or DisplayPort
  4. Corrupt system files
  5. Update your graphics drivers
  6. Check Refresh Rate
  7. Reset the BIOS Settings
  8. Replace the graphics card
  9. Defective T-Con board

If you have tried all these steps and you have not found a solution to fix your monitor problem, you should contact Acer customer support. 

If your monitor has a serious problem, buying a new monitor is better than wasting money on an old one.


How do I fix the vertical lines on my Samsung monitor?

There are a few basic ways to troubleshoot vertical lines on your monitor. 

Firstly, check the connection between the screen and the computer as well as your monitor’s built-in cables. 

Make sure that they quickly click together with no extra wiggling or pushing. 

Next, try using different types of video cables or ports in your computer to see if that fixes the issue. 

If not, it may be time to update your graphics card drivers or adjust settings on your screen to resolve any display issues you are having. 

Lastly if all else fails, take your monitor into an authorized repair centre for servicing if it is available in your area.

Why does my Samsung have lines on the screen?

There is a possibility that your Samsung screen may have lines on it if there are issues with the loose wiring, faulty cable connection, or an issue with the display itself. 

Check whether the lines on your screen move across or remain static – if they sway from side to side, there could be an issue with your input source (e.g., HDMI cable). 

If the lines are static and do not move, then either your monitor or video card inside your device may be having issues.

Why are there gridlines on my monitor?

It is also possible that loose wiring, faulty cable connection, or an issue with the display itself may cause gridlines on your Samsung monitors. 

However, check whether they move across the screen or stay static.

If they move all over in different directions, there might be a problem related to input source (e.g., HDMI cables).

Whereas fixed gridlines usually mean there’s a problem with either monitors or video cards inside devices.

What does a failing monitor look like?

Many monitors tend to fail when they start flickering or produce distorted images. 

Bright or dark spots may also appear on the screen, and it may only show a single color on the monitor or nothing at all as everything might be completely black. 

There could also be buzzing sounds produced by a failing monitor when turned on. 

If your monitor is plugged in and properly connected to your computer but does not turn on, then there is a high probability that it will eventually fail you.

What is the lifespan of a monitor?

Monitor life span normally ranges from 10 – 20 years or 30,000 – 60,000 hours of use.

However, this can vary due to several factors such as frequency of use, environmental conditions and maintenance practices. 

To preserve your monitor for maximum lifespan make sure that you keep it free of dust using compressed air after switching off the machine before turning it back on again. 

Though no particular timeframe can guarantee how long any given monitor will last.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top