Monitor Flickering On and Off HDMI [Solved!]

If you are having trouble with your monitor flickering on and off when connected to an HDMI device, you are not alone.

It’s incredibly frustrating when your monitor flickers on and off, especially if you’re in the middle of an important task or project.

Not only does it disrupt your workflow, but it can also cause eye strain and headaches.

In this article, I will explore the possible causes of monitor flickering on and off HDMI and provide some tips for troubleshooting the problem.

I’ll also review what steps you should take if the monitor continues to flicker despite your best efforts at resolving it.

With these helpful tips, you’ll be able to get back to enjoying clear visuals from your monitor in no time.

Monitor Flickering On and Off HDMI [Solved!]

Monitor Flickering On and Off HDMI

If your monitor is flickering on and off when connected via HDMI, different reasons can cause this problem. Possible causes of a monitor flickering on and off include loose cables or connections, a problem with the HDMI cable, a problem with the HDMI port, incorrect display settings, an old or outdated or outdated graphics card, or issues with the installed graphics drivers.

How to fix the monitor that flickers on and off HDMI?

To fix the monitor problem, loose cables should be checked first, as this is the most common cause.

Ensure the power and HDMI cables are firmly connected to the monitor and graphics card.

If the cables are securely in place, check if a different HDMI cable works or try using a different port on your graphics card.

If this does not help, configure display settings by changing the refresh rate of your monitor or reinstalling your graphics drivers.

Lastly, reinstalling the graphics drivers can help with compatibility issues as well.

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

  1. Loose Cables Connection
  2. Check The Power Cable
  3. Check The HDMI Cable
  4. Problem With HDMI Port
  5. Configure Display Settings
  6. Reinstall Graphics Drivers
  7. Check Frame Rates using Windows Settings
  8. Old Graphics Card
  9. Update Graphics Drivers
Monitor Flickering On and Off HDMI [Solved!]

1- Loose Cables Connection

Loose cables are one of the most common causes of a monitor flickering on and off through an HDMI connection.

This can happen when the cable is not inserted securely into the port or when a cable has become frayed or damaged.

If this is the case, it can cause a poor connection, resulting in picture instability, including flickering on and off.

To check if a loose cable is a culprit, ensure all cables are securely plugged in, then try flipping the cables around to ensure they’re placed properly in their ports.

If your monitor still flickers after trying this, it may be time to replace your HDMI cables.

2- Check The Power Cable

When troubleshooting a monitor flickering on and off while connected through HDMI, it is important to check the power cable first. 

Power cables play a major role to transfer electricity from the switch to the monitor. 

You should ensure the power cable is securely connected to both the display and the outlet and that it has not become frayed or damaged.

If you found any signs of damage to the cable or connection points, replace the power cord with a new one.

If all appears secure, but the issue persists, try using a different outlet as some outlets may need to supply more electricity or be insufficient for proper functioning.

Once these basics have been checked out, you can explore additional software or hardware-related issues.

3- Check The HDMI Cable

Checking the HDMI cable is the most important step in troubleshooting monitors flickering on and off when connected via an HDMI connection.

Because this problem is very much related to your HDMI connection.

It is important to ensure the cable is plugged in properly, with both ends securely fitted into their respective ports.

If the cable appears damaged, replacement is a better option for troubleshooting your monitor problem. 

Additionally, check for any bends or kinks in the cable which could affect its functionality.

If nothing works, try using a different HDMI port or device to test if it works better with different connections.

4- Problem With HDMI Port

One more best way to fix this problem is to identify what’s causing the issue.

If you have checked all cables connection and still facing a problem, this is the time to check the HDMI port for any damage or loose connection.

If your HDMI port is damaged then try to replace the HDMI port with a new one.

This is a tricky step to replace the HDMI  port by yourself. So it is recommended to take help from an experienced technician.

If none of these solutions work, try other given methods to solve your monitor problem.

5- Configure Display Settings

Configuring Display Settings for an HDMI Monitor can help to prevent flickering on and off:

  1. You should ensure your monitor is securely connected to the computer via the HDMI port.
  2. Check that all of the monitor’s power cables are securely plugged in.
  3. Adjust display settings such as refresh rate, resolution, or brightness to ensure optimal performance.
  4. You may need to experiment with different settings to find the best configuration for your particular setup.
  5. Updating your device drivers can help improve any potential issues with performance or compatibility.

Monitor flickering on and off HDMI can usually be resolved by properly configuring the display settings and ensuring all connections are secure.

6- Reinstall Graphics Drivers

If your monitor is still flickering on and off when connected via HDMI, one other step in troubleshooting is reinstalling any graphics drivers installed on your computer.

When reinstalling graphics drivers, it is important to install the correct driver version for your specific GPU or chipset.

Downloading an outdated version of a driver can cause unexpected issues like display flickering.

Additionally, make sure that you download the driver directly from the manufacturer’s website instead of relying on generic downloads.

Once you have downloaded and installed the latest version of your graphics drivers, restart your computer and check if this has resolved your flickering issue.

7- Check Frame Rates using Windows Settings

One way to check the frame rates on a monitor flickering on and off HDMI is to use the Windows Settings Monitor Monitor page.

On this page, various display settings can be adjusted, including resolution and refresh rate.

Adjusting the refresh rate to a higher frequency may help reduce or eliminate flickering.

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

  1. Open Device Manager by Win + X > Device Manager.
  2. Then, expand “Display Adapters.”
  3. Right-click on your “Driver” and select “Uninstall Device.”
  4. Click “Uninstall.” 
  5. Then Right-click on “Display adapters.” 
  6. Select “Scan” for hardware changes.
  7. Your computer will install “Generic Driver.”
  8. Finally, “Install” the downloaded driver.

Depending on the type of graphics card installed in your computer, you may need to adjust basic or advanced display settings from within your device manager.

8- Old Graphics Card

An old graphics card can cause a monitor to flicker on and off through an HDMI connection.

This issue is often caused by incompatibilities between the graphics card’s capabilities and the specifications of the HDMI port.

An older graphics card may not offer enough bandwidth or support the latest video standards, resulting in an unstable signal that causes the monitor to flicker on and off. 

The resolution of an outdated graphics card might also be too low for certain displays, causing further issues with sparkling.

To resolve this, you should check your computer’s specs to ensure its graphics card supports the necessary features for its monitor or upgrade to a more modern graphics card if necessary.

9- Update Graphics Drivers

Updating your graphics drivers is an important step in troubleshooting monitor flickering when connecting to a device with an HDMI connection.

Outdated or incompatible drivers can cause monitor flicker, so it is important to ensure that your graphics card driver is up-to-date.

Depending on the type of computer, graphics card, and operating system you are using, there are several methods for updating your graphics drivers.

You can update by using Windows Update, downloading drivers directly from the manufacturer’s website, or using a third-party tool like Driver Booster.

When downloading new drivers, it’s important to consider compatibility with your current operating system and any other programs or hardware you may have installed.


In conclusion, if your monitor is flickering on and off HDMI, you can troubleshoot your monitor problem by following these steps:

  1. Loose Cables Connection
  2. Check The Power Cable
  3. Check The HDMI Cable
  4. Problem With HDMI Port
  5. Configure Display Settings
  6. Reinstall Graphics Drivers
  7. Check Frame Rates using Windows Settings
  8. Old Graphics Card
  9. Update Graphics Drivers

If the monitor still flickers on after trying all these steps, the problem is likely with the monitor itself and should be sent in for repair or replacement if it is still under warranty.


Why does my monitor flicker with an HDMI cable?

If your monitor is flickering when using an HDMI cable, various factors could cause this problem. 

If Control Center is not connected to the HDMI/ARC input on your monitor, then it’s possible that the signal isn’t properly sent to the display, resulting in the flickering issue. 

This can also happen if any loose connections or the cables are damaged. 

To resolve this issue, you can try replacing or reconnecting HDMI and Control Center cables to ensure they’re securely connected, and all connections are tight.

Why is my monitor flickering on and off lines?

A flickering monitor can be a frustrating experience. It’s important to determine the cause of the issue to find the right solution.

One of the most common causes of a flickering image or stripes on your monitor is loose or damaged cable connections.

If you’ve recently moved your monitor, check that all the cables are plugged in securely and that the connections are secure.

If there is any loose or damaged cable, replace it with a new one.

You should also inspect the cables for signs of wear and tear, such as fraying or breakage.

Why does my HDMI keep flickering on and off?

If you are experiencing flickering on and off with your HDMI connection, try replacing the HDMI cable.

This is often the simplest solution and can be done quickly.

Try a different HDMI cable to see if this resolves the issue, as sometimes older cables may be unable to support higher resolutions or refresh rates.

Pro Tip:

Try using a higher-quality certified HDMI cable if you experience further problems.

Can a bad HDMI cable cause a flicker?

Yes, bad HDMI cables can cause video flickering.

Signal degradation associated with poor-quality HDMI cables can decrease picture clarity, resulting in flickering or unstable images.

Poorly shielded cables are particularly vulnerable to interference from external sources such as power lines, which can further exacerbate the problem.

Furthermore, the old cable can also play a role in signal degradation.

What are the signs of a bad HDMI cable?

A bad HDMI cable can cause several issues with video or audio quality.

The most common signs include fuzzy or distorted images, a lack of color or brightness, and occasional audio dropouts.

In some cases, you may see no picture at all. If this happens on your device, it might be time to consider replacing the HDMI cable.

The good news is that plenty of options are available at various price points, so you can find something that will work for you.

Why does my monitor keep going black for a few seconds?

Several things, such as a faulty connection between your monitor and your computer or an out-of-date or corrupted graphics card driver, could cause it.

You may need to update the driver to fix the issue. 

Check all of these possible causes, and if none are found, then you should contact customer support for further assistance.

Can a bad HDMI cable damage the monitor?

No, a bad HDMI cable cannot damage the monitor.

The cable itself is not able to emit enough electricity to cause any harm, and the components of an HDMI cable are not sophisticated enough for it to cause any damage. 

Even if a cable becomes damaged, one should be able to replace it with a new one without worrying about damaging the monitor.

But cables can be affected by external sources, such as electricity surges, and thus proper precautions should be taken to protect against these occurrences.

Leave a Comment

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

Scroll to Top