How To Fix Samsung TV Horizontal Lines on Screen

If you own a Samsung television, you may use it anytime you want to watch anything on a high-definition display since it offers the highest picture quality and functionality when compared to other smart televisions. While viewing your favourite programmes or movies on your Samsung tv, you may encounter the problem of Samsung tv horizontal lines on screen, which may be caused by a graphic failure as well as other factors. On a Samsung smart TV, this sort of problem might arise owing to the display or input. It can manifest itself as horizontal or vertical lines on the screen, as well as blank screen issues, blue screen glow, or the presence of a decent blacklight but no image. Another reason for this error to occur is a damaged input source or a black death. In this post, we will discuss several solutions to this problem.

Reasons Behind Samsung tv horizontal Lines on Screen

A loose input cord, screen damage, and a graphic failure were all contributing factors to this problem. You may notice diminished picture quality or contaminants on LCD screens as a result of this. This sort of problem might also occur if the quality of your photograph has been diminished. Some of the most important causes for this problem are discussed further down.

Incompatible Image Resolution 

When you are viewing movies or television programmes on your smart television, you may notice that the display error or picture size is different from the smart television resolution. If a little image or a very large image is shown on the television screen, lines may appear on the screen. It is sufficient to alter the image resolution to resolve the problem.

Fix Horizontal Lines on Screen on Samsung Smart tv

Follow the troubleshooting procedure below and check cables and other techniques to repair horizontal lines on the screen of your Samsung smart television.

Input Cable Issue 

It is possible that your cable input is not correctly linked to both your smart TV and your smart hub. Your screen will display horizontal lines as a result of this. In order to do this, you must reconnect the cable.

Methods to fix Samsung tv horizontal lines on screen

In order to overcome the issue of Samsung tv horizontal lines on screen, then follow the below mentioned steps 

Power Reset

Disconnect all power connections from the wall socket to the Samsung smart tv and wait 30 or 40 seconds. After 40 seconds, reconnect all power connectors that were previously disconnected and switch on the Samsung tv.

Perform picture test 

In order to get a conclusive verdict on the subject, we must first conduct an image test. You may use this option to turn off the display-related issues. The optimal picture resolution is suitable with the image being shown. However, this function is not available on older Samsung television models, which is sad. To get around this, follow the procedures below.


If you want to access the smart hub menu, grab your remote control and hit the home button, followed by the settings button.


After that, go to the support tab and choose device care.


After that the device will perform quick scanning


Once done with the process, then choose self diagnosis from the bottom

Step 5

Now using scroll key, choose picture test and choose ok

Step 6

Finally, once check if the error is still continued or resolved 

Update Samsung Firmware

If none of the previously listed techniques are successful, you may try this approach, which requires you to complete the steps outlined in the following section.


For opening smart hub, on your tv remote control press home button

Step 2

After that go to settings and then choose support

Step 3

Choose software update option and then followed by update  now

Step 4

Following that, the newly updated file will begin to download.

Step 5

Next, follow the on screen instructions for installing the updates

Video Guide

How do I fix horizontal lines on my Samsung TV?

1 Check whether the lines on the screen are moving or permanent. 2 If the lines sway, check the input source (HDMI 1, Video, PC, etc.) and connection to see if they are properly connected. Disconnect and re-connect the video cable/HDMI to check if the issue is resolve

What causes horizontal lines on TV screen?

When any part of a TV’s display gets damaged, corrupted, or is defective, it can cause lines to appear on the screen. Some TV parts that can cause horizontal lines to appear are the LCD panel, T-Con board, or row drivers.

How long do Samsung TVS last?

A Samsung TV can last around 4 to 7 years with constant use, at the highest brightness, and being almost always on. If taken care of properly, it can last much longer

Bryan V. Root
Bryan V. Root
Articles: 460

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