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Vizio TV Red/Green Lines: Your Guide to Getting Rid of Them

I’m an owner of a Vizio TV and I’m sure many of you can relate to the frustration of having red and green lines appearing on your screen. After doing some research and trying out a few tips and tricks, I’m here to share how I solved this issue and other solutions that I discovered. In this blog post, I’ll be giving you a comprehensive guide on how to get rid of the red and green lines from your Vizio TV.

Improper cables, bad signal, or even erroneous picture mode settings may lead to this issue. Additionally, temporary system or software bugs and hardware damages may stand behind the lines.

Possible CausesFixes
Bad SignalCheck your cable TV signal and ensure it is stable. If the issue persists, contact your service provider.
Temporary Hardware BugUnplug the power cable, wait for a minute, and plug it back in.
Error in HDMI ConnectionCheck the HDMI cable for damage and ensure it’s securely connected to both the TV and the source device. Try using another HDMI port if available.
Defect in the Source DeviceTest different source devices (e.g., Fire TV, gaming console) to identify if the issue is related to a specific device. Replace the defective device or cables if necessary.
A Bug in the Picture ModeChange the picture mode in your TV settings. Press “Menu” on the remote control, select “Picture,” choose “Picture Mode,” and switch between modes until the issue is resolved.
An Issue in HDR ModeTurn off HDR mode. On the remote control, go to “Settings,” choose “Input settings,” select the connected HDMI port, and disable the Full UHD Color option.
Improper SettingsReset your TV settings to eliminate any inappropriate or overlapping settings.
Outdated Software of the TV/InputCheck for any updates for your TV and input source devices. Install the updates if available.
Damage on the Main Board or T-ConContact a trusted repairer or Vizio support if all software solutions fail, as dealing with the main board and T-Con is complex and may require professional assistance. If your TV is still under warranty, reach out to Vizio support for help.

Possible Causes of Vizio TV Red/Green Lines

Here are the most common causes of the lines issue:

Bad Signal

If you were watching cable TV when the lines appeared, it’s very likely a bad signal that’s behind these bothering lines.

Some technical issues in the service and harsh weather conditions might lead to a poor signal. Thus, the appearance of undesirable lines on the screen.

Temporary Hardware Bug

For power-related reasons, the TV may encounter a temporary hardware bug that affects its picture.

These bugs might include excessively stored electricity on the TV board or temporary malfunction in the display circuit.

Error in HDMI Connection

Whatever its source, if your HDMI cable isn’t firmly connected to the TV, this may lead to the appearance of red and green lines.

The flawed connection of the HDMI cable may be because of any damage inside or outside it. The problem may also be related to the port.

Defect in the Source Device

The cause of the green or red lines might be the source of the image. 

This includes the satellite box or the application you’re running.

A Bug in the Picture Mode

All preset modes are supposed to work smoothly on your TV. Nevertheless, while these modes try to enhance colors, they might develop bugs. 

One of these bugs is the vertical red or green lines. This is likely to happen if you’re turning on “RGB Only” mode.

An Issue in HDR Mode

High dynamic range, or HDR, is a picture mode that maximizes the quality of the displayed TV picture. 

It does that mainly by improving the contrast of the picture. Sometimes, this mode doesn’t work well with some content sources, leading to image defects.

Improper Settings

Red or green lines sometimes result from overlaps in settings, especially in the picture.

Much worse, in many cases, it’s hard to detect the particular setting responsible for the lines. So, you’re forced to reset the TV.

Outdated Software of the TV or Input Source

In many cases, display glitches are caused by the out-of-date software of the TV or the input device you use. 

This is highly probable if your devices are old.

Damage on the Main Board or T-Con

The main board and T-Con are responsible for displaying the TV picture. So, if there is any slight damage in one of them, many display issues can occur, including the colored lines.

How to Get Rid of Vizio TV Red/Green Lines?

The following fixes are the most effective solutions to Vizio lines problem:

  1. Unplug the Power Cable

The fix may be as simple as unplugging the power cable from the outlet to solve the excessively stored electricity issue.

After unplugging, wait for a minute and plug in the cable again.

  1. Check the HDMI Cable

Take a look at your HDMI cable to spot if there is any damage to its surface. In addition, ensure the cable is securely connected to the ports of both sides: the TV side and the source’s. 

If it’s attached well and still no picture improvement, the problem may be in the port. So, disconnect the cable and connect it to another HDMI port on the TV.

  1. Test the Source Device

To spot whether the source device stands behind the lines, try a source device other than the one you’re running now. 

For example, if you’re streaming from a Fire TV, disconnect it and try a gaming console. If the problem exists with the two devices. Then, it’s not a source problem. 

If it occurs only with one of the source devices, you need to change the cables or change the defective source device itself.

  1. Update the TV and Input Source Software 

Check for any updates for your TV or the input device software. 

If you find updates, install them as fast possible as you can.

  1. Change the Picture Mode

To switch between different picture modes, follow these simple steps:

  • On your remote control, press“ Menu.”
  • Select “Picture.”
  • Choose“ Picture Mode.”
  • Switch between modes. 
  • If the line disappears when choosing a particular mode, make it the default.
  1. Turn Off HDR Mode

If you suspect HDR is the cause of the problem, switch it off by doing the following:

  • On the remote control, go to “Settings.”
  • Choose “Input settings.”
  • Select the connected HDMI port.
  • Disable the Full UHD Color of the port. 
  1. Reset the TV

If you tried the modes’ solution with no result, you might need to reset all the settings

That way, you eliminate any overlap or inappropriate setting. 

  1. Contact a Trusted Repairer or Vizio Support

If you applied all the software solutions with no notable results, the problem is a hardware one. 

In this case, you need to contact a repairer. Solving the hardware problems yourself isn’t recommended since dealing with the main board and T-Con is complex.

In addition, if your TV is still in the warranty period, you may get in touch with Vizio support to get help with your TV.

The Bottom Line

Try the following fixes to eliminate Vizio TV red/green lines. Start with unplugging and plugging back the power cable. 

Next, check the HDMI cables and ports. Then, look for updates for your TV software and input sources. While in settings, switch between picture modes.

You might also need to reset the TV. Finally, you should contact a trusted repairer if all software solutions fail.