Fix Samsung TV Horizontal Lines on Screen [QUICK SOLUTION]

Did your Samsung TV suddenly develop horizontal lines on the screen? This can be the first indication that it’s time to do troubleshooting to fix your Samsung TV. It is a common problem affecting most Samsung TVs over a certain age, but it is easy to fix.

A large number of users report horizontal lines on the screen, banding, or color bleeding issues. This post is to help you fix this problem on your Samsung TV.

While there are many brands and models of smart TVs on the market, it’s true that Samsung provides the best. It’s a leading brand in quality and innovation, producing displays that deliver natural and vivid color and impeccable contrast as well perfect black levels.

Samsung TV is great for its superb picture quality, extensive content partnerships and a wide range of models to choose from. But there’s one issue that seems to be recurring with some customers — a horizontal line has appeared on the screen of their smart TV.

If you’re experiencing horizontal lines on your Samsung smart TV, it’s possible that the source is to blame or that an input needs adjusting. Most of the time, the source is to blame for unclear images or a distorted layout — for example, a blurry disc might mean that you need to adjust your TV’s settings.

If the horizontal lines on your TV screen have you worried, take some deep breathes. Straightening out the lines is a breeze. Start by changing the resolution of your TV. Next, try adjusting the brightness or contrast. You can also restart the device and adjust color levels and temperature to see if that fixes the problem. If these suggestions don’t work, consider getting professional help.

Samsung TV Horizontal Lines on Screen – Troubleshoot and Diagnosis

Samsung TV Horizontal Lines on Screen

One negative issue that has been brought up is a black line that appears for some on the screen. While this doesn’t affect performance, it does make any image look distorted and could be a potential deal-breaker for those looking for perfection in their TV.

If the LCD screen displays horizontal lines, it could be a sign of a failing graphic card. The graphics card is an essential part of the display system and is responsible for converting images from the video signal into pixels that can be displayed on the screen. When this system fails, input signals are not converted properly and will result in an array of strange-looking lines or dots on the screen.

We’re sure that everyone has run into this one: you’re binge-watching your favorite show on Netflix, but after the first half hour, the horizontal line from hell begins to creep up the screen. A nuisance for sure, but not the end of the world. There are several ways you can use to try and fix this issue.

Below are some of the common reasons that might be causing the Samsung TV Horizontal Lines on Screen Issue:

  • Input Cable is Not Properly Connected: When you plug the input cable into your smart TV and smart hub, sometimes the picture doesn’t load on the screen. This is usually fixed by replugging the cable into your smart tv and smart hub. Sometimes, it helps to unplug your TV for a few minutes and then plug it back in.
  • Image is Too Big or Too Small: If you’re seeing a screen full of lines, pixels, or a message about changing the resolution with your smart TV, don’t fret. This is a common issue that can be fixed with some troubleshooting.
    If you have a smart TV, you may notice that it has multiple resolutions. Usually, the smaller size is 720p with a higher refresh rate and a 4:3 aspect ratio; the bigger one is 1080p with a lower refresh rate and 16:9 aspect ratio. If your photo resolution differs from your TV’s resolution, it will lead to blurry images or lines on the screen.
  • Old Software: If your smart TV is outdated, you’re four times more likely to experience lines. Outdated graphic drivers can’t process high-resolution pictures that come with modern movies and TV shows.
  • The panel is Not Working: Every television has a display panel, which is the area that displays what you’re watching. Sometimes, the lines on your TV’s display panel are due to a faulty gate driver — a dedicated chip that helps power the screen. This part is linked to the TV’s motherboard, so you’ll need a professional technician to replace it.
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Some common problems with TV displays are easily noticeable, but some issues might be more difficult to detect. However, there is almost always something you can do to resolve a problem before it becomes more serious.

Solution 1: Do a Power Reset

The first thing you can try is to unplug the power cord from the TV. Wait at least one minute, then plug it back in and turn on the TV.

If you can’t get a signal on your TV, power cycling it might be enough to get the signal back. You should try this step first. Shut your TV off and unplug it from the power source for 5 minutes. After 5 minutes, plug the TV back in and turn it back on.

Solution 2: Check the Lines whether They are Still or Moving

The lines on your TV screen are moving? It’s a pretty common issue for Samsung smart TVs, but it’s easy to fix. There are three things you should check: your HDMI cable, your TV connection, and whether the issue is permanent or temporary.

If the issue is only happening when you’re playing a specific smart TV app, then it may be that the problem is with your streaming services, not your television.

If your TV screen has lines that flash on and off, it’s usually due to a loose connection in the HDMI port. To test this, plug your TV directly into your cable box or satellite. If you get a picture and sound, then it’s likely your Samsung smart TV. Also check all of the cables running to the TV, as they may be causing interference.

Check whether the other end of the HDMI cable is securely connected to the hub. If it’s securely connected, try reconnecting the HDMI cable — if the lines on your TV screen stop moving, then you can conclude that the HDMI cable is faulty and should be replaced.

If you notice permanent lines on the screen, then it is probably damaged. If lines remain on your Samsung TV screen, it means the LCD Panel is damaged. The next stage is to replace the panel with a new one. However, usually, this happens as a result of water damage, broken screen, or gate driver failure. We recommend visiting the nearest Samsung Service center to fix your TV.

Solution 3: Perform a Picture Test

The Picture Test is an easy troubleshooting feature that helps you determine whether your Samsung smart TV is compatible with the image you’re trying to view. Whenever an image on your TV appears inconsistent or distorted, use the Picture Test to fix the issue and make sure you’re seeing everything in its best light.

The Picture Test is a feature that comes with all Samsung smart TVs. It helps to troubleshoot issues such as black, white or green colored spots on your screen caused by poor signals, loose connections and dim settings. Being able to get rid of these types of problems can be a huge benefit to you and your family’s viewing experience.

Samsung Smart TV has a lot of great features, but some are only available for models produced in 2018 and onwards. If you have an older model, you won’t be able to enjoy some of these great features. 

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Follow the process below to Do a Picture Test on your Samsung TV:

  1. Go to TV’s Home Screen.
  2. Open Settings, select Device Care and then press ‘Scan‘. The scan may take a few minutes.
  3. Select Self Diagnosis.
  4. Scroll down to Picture Test, click on the OK button to start the test.

Check if the issue persists while switching inputs to different video sources (HDMI1, HDMI2 etc.).

Samsung TVs have a picture test function that can be run to check for any issues with the TV. The way it works is that the TV displays a test pattern and the lines will shift around if there’s an issue. If you find that your TV has any issues, be sure to call Samsung for help.

Solution 4: Update the Firmware on Samsung TV

You need to know that firmware isn’t usually responsible for display issues, such as horizontal lines. Sometimes, it’s not your display. Something as small as a firmware update can fix even the most stubborn of problems — so don’t give up! Follow your TV’s directions for a firmware update, and give it another try.

Samsung TV firmware updates are a crucial part of owning a Samsung TV, to ensure the most seamless user experience. You should always update your firmware when prompted, for the latest features and bug fixes.

Rather than just providing a firmware update, Samsung included an important graphical update as well. This will ensure that your TV screen runs smoothly without any mysterious lines or blurs obscuring the picture.

To update Samsung TV firmware, go to Settings > Support > Software Update. Choose Update Now and follow the on-screen instructions.

The file will download and then install, so just follow the on-screen prompts until you’re done. If this doesn’t fix it, call Samsung’s customer service team.

Solution 5: Perform Factory Reset

If you have already updated your Samsung smart TV recently, but you are still experiencing the annoying vertical or horizontal lines on the screen, then it is likely that the problem comes from another source.

Since your TV is already running the latest firmware, you’ll need to troubleshoot the issue you’re experiencing. One of the best ways to do this is by trying a factory reset. This deletes any corrupted files that may be causing your problem and reverts your device to default settings in the process.

If you are looking for TV reset Samsung, you can follow the steps below to reset your device to factory settings.

Note: Be sure to save any information and Data in a secure location before you proceed.

To do this, follow these instructions:

Go to Settings->General->Reset. Here, enter your PIN (default is Select Reset and then OK. Wait for the reset process to complete.

Solution 6: Call a Service Technician

Samsung stands behind the quality of its products and wants you to be completely satisfied. If you run into issues with your TV, Samsung has a service team available to help.

Turn to qualified Samsung TV technicians for a thorough diagnosis. Trained to diagnose the root cause of your TV’s issues, these specialists are equipped with the tools required to fix even the most complicated problems. It’s important for you to remember that only official Samsung parts should be used for warranty repairs.

How To Get Rid Of Black Line On Samsung TV

Samsung televisions are some of the best on the market, but they’re also pretty pricey. That’s why it’s so important to keep them in good condition — replacing a TV is an investment in your home entertainment. Fortunately, with a few simple steps, you can remove that pesky black line on your Samsung TV and keep it looking great for years to come.

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Lines on the TV screen can cause a lot of problems, but they are pretty easy to fix. The first thing you have to do is figure out what kind of lines you’re seeing. If the lines are moving, it means there’s either a problem with your HDMI cable or DVD player — or there’s an issue with your TV’s internal circuitry.

What Causes Horizontal Lines On TV Screen Samsung

The main cause of horizontal lines on the TV screen is a bad video cable. But why does it happen? When you press the “Source” button on your remote control, the TV looks for a signal. If there are horizontal lines on your TV screen and you’re using an HDMI cable, then the problem lies in the cable. Most often, this problem occurs because the cable is broken or has loose ends.

If you’re having trouble viewing your Samsung TV, you may be experiencing horizontal lines. This issue can stem from a few different components within the TV itself, including faulty software or loose internal wiring.

Horizontal lines also show up due to mechanical damage to the display. If this is the case, you’ll need to replace the damaged area of glass, which could involve an on-site repair with an authorized technician.

Why Does My Samsung TV Have Horizontal Lines Running Through Picture

Horizontal lines on your smart TV screen may be caused by a defect in the TV’s hardware or it could simply be normal. Since you cannot physically inspect the TV and test this yourself, you will need to check the support site for your specific model of TV. Many of these lines will not remain permanently on the display; they may temporarily appear and disappear occasionally. This is due to something called “Picture Retention.”

Samsung Smart TVs have been known to suffer from persistent horizontal lines across the screen. These lines mar the image, even in moments when there’s no motion present on the screen. Sometimes caused by updates (which can be solved by downgrading), sometimes by loose wiring, and sometimes by mechanical damage, the issue is notorious for being hard to fix — and even more difficult to diagnose.


There are two main causes of lines appearing on the screen of a Samsung Smart TV: hardware and software. If the lines are permanent, it’s a hardware issue; if they’re moving, it’s a software issue that can be easily fixed with the troubleshooting methods below.

Although the HDMI cable can solve most of the issues, but it is hard to insert the HDMI cable into your TV as well. Some users also reported that they were unable to get a clear picture when they inserted the HDMI cable, which means there might be a compatibility issue between the TV and the HDMI cable. If you are not able to get a clear picture, please try to do a “Picture Test” on the TV.

Every smart TV should be regularly updated to ensure complete compatibility with the latest apps and software. If an error occurs, perform a factory reset on your TV. This will remove all user data, settings, and channels, but it will allow you to start over with your device and resolve any problems you are experiencing.

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