Samsung Monitor Goes Black Randomly [Proven Fixes!]

It happened so suddenly one day. I was working away on a project at my desk when suddenly, my Samsung monitor went completely black.

It startled me, and I quickly tried troubleshooting the problem, but nothing seemed to work.

After researching online, it became clear that this wasn’t an isolated incident.

Samsung monitors were randomly going black for many users around the world. This frustrated me even though I had no idea what was causing it or how to fix it.

Samsung Monitor Goes Black Randomly [Proven Fixes!]

Samsung Monitor Goes Black Randomly

If your Samsung monitor goes black randomly, you can troubleshoot your problem by following these steps. To fix this problem, reconnect any cables, check your video settings, and update drivers. Additionally, you may need to factory reset the monitor or repair any corrupted files. Lastly, check that your power supply is working correctly. If the issue persists, it is recommended to contact Samsung technical support for further assistance. 

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

  1. Reconnect HDMI/VGA Cable
  2. Check Your Video Cable
  3. Check Your Computer Power Settings
  4. Update Your Graphics Driver
  5. Factory Reset Your Monitor
  6. Incorrect Resolutions or Refresh Rates
  7. Repair Corrupted System Files
  8. Check Power Supply

1- Reconnect HDMI/VGA Cable

If your Samsung monitor is randomly going black, it could be due to a loose or faulty connection of the HDMI or VGA cables.

You should check that the cables are properly connected and seated in their respective ports on the Samsung monitor and the computer.

If your Samsung monitor still goes black randomly, try switching out any potentially faulty cable for a new one.

You should also ensure that your Samsung monitor’s firmware is updated to the latest version.

If your Samsung monitor continues to go black after taking these steps, then there could be a problem with the video cable of your Samsung monitor. 

2- Check Your Video Cable

If your Samsung monitor randomly goes black, it could be caused by a faulty video cable.

To rule out this possibility, you must check that the video cable is tightly and properly connected on both ends.

If any pins have been damaged or bent, the connection may be disrupted, and the monitor may display an intermittent or blank screen.

You can also try using a different cable or port in case one is not functioning properly. 

Additionally, checking the settings of your graphics card and making sure they are compatible with the Samsung monitor could help diagnose issues with video output.

3- Check Your Computer Power Settings

When a Samsung monitor goes black randomly, checking the computer power settings is recommended.

This can be done through the Control Panel of the computer. Depending on the type of Samsung monitor, users should check several power settings.

Generally speaking, these include adjusting the brightness and contrast levels, setting a power saving mode, and enabling a sleep timer. 

Adjusting the brightness and contrast levels of the Samsung monitor helps reduce eye strain for long periods of working time.

Power saving mode also helps conserve energy by lowering the amount of electricity used by Samsung monitor when it is not in use.

A sleep timer can be set so that the Samsung monitor will automatically shut off after a certain period of inactivity or at specific times to save energy.

4- Update Your Graphics Driver

Updating your graphics driver is important if you randomly experience Samsung monitor blackouts.

The graphics driver links the application, operating system, and display hardware.

A faulty or outdated driver can cause your Samsung monitor to go black randomly, as well as other display issues such as artifacts, distortion, low-resolution visuals, etc.

To update your Samsung graphics driver, determine what type of graphics adapter is installed in your computer’s motherboard.

To do this, you can use Windows Device Manager or a third-party app like Speccy or CPU-Z to identify the exact model of your Samsung graphics card.

Then visit Samsung’s website for the latest compatible drivers for that specific model. 

Downloaded, double-click on it to install it, and reboot the computer once completed.

5- Factory Reset Your Monitor

When Samsung monitors go black randomly, it could be due to many factors. A good first step is to try a factory reset. 

This process returns the monitor to its original settings and can often fix various issues.

To perform a factory reset, you must locate the monitor’s “Service Menu” by pressing and holding certain buttons while switching on or off.

The exact combination varies depending on the model but can usually be found in the user manual.

Once in the Service Menu, navigate until you find either “Factory Reset” or “Memory Clear,” and select that option.

This should reset all settings to default and may help fix your Samsung monitor if it has been going black randomly.

There are other causes for Samsung monitors going black randomly, such as technical faults with incorrect resolutions or refresh rates.

6- Incorrect Resolutions or Refresh Rates

The Samsung monitor going black randomly can be caused by incorrect refresh rates or resolutions.

A monitor’s refresh rate is measured in Hertz (Hz) and indicates how many times the image on the screen is refreshed per second.

A high refresh rate provides a smoother and more responsive viewing experience, while lower refresh rates can cause flickering, lag, stuttering, and other visual disturbances.

If your Samsung monitor’s refresh rate is set too low or too high for the content it displays, it may randomly cause the display to go black.

Another likely culprit of Samsung monitors going black randomly could be an incorrect or unsupported resolution setting.

Resolution refers to the number of pixels displayed on the screen simultaneously and affects image clarity.

7- Repair Corrupted System Files

When Samsung monitors go black randomly, it can be caused by a corrupted system file.

Repairing the corrupted system file can help restore the Samsung monitor’s functionality and prevent further occurrences of random blackouts.

One way to repair corrupted system files is to use Windows System File Checker (SFC) utility. 

This utility scans the entire computer for corrupt or missing system files and then attempts to replace the damaged files with their cached versions.

This tool also checks for errors in other important Windows components, such as the registry, device drivers, and application files.

Another way to repair corrupted system files is to use third-party software such as ReimagePlus or CCleaner.

These programs are designed to scan the entire computer for corrupted or missing system files and then attempt to repair them if possible.

8- Check Power Supply

When Samsung monitors go black randomly, the most important and last step that should be taken is to check the power supply. 

This could mean checking the power cords to ensure they are firmly plugged into the monitor and have a functioning outlet.

Inspecting the power cord for any visible damage or fraying might also be necessary, as this could indicate an issue with the power supply.

Additionally, if a surge protector is being used, it should be verified that it is working properly and not showing any signs of damage.

If these steps do not solve the problem, it may be necessary to replace either the power cord or the surge protector to restore power to the Samsung monitor.


In conclusion, if your Samsung monitor goes black randomly, you can troubleshoot your Samsung monitor by following these steps:

  1. Reconnect HDMI/VGA Cable
  2. Check Your Video Cable
  3. Check Your Computer Power Settings
  4. Update Your Graphics Driver
  5. Factory Reset Your Monitor
  6. Incorrect Resolutions or Refresh Rates
  7. Repair Corrupted System Files
  8. Check Power Supply

If you have tried all these steps and have not found any solution, it is best to contact Samsung customer support.

They will give you the solution to troubleshoot your monitor sound problem because they have a qualified team.

If your monitor has a serious problem, it is best to buy a new monitor instead of wasting your money on an old Samsung monitor.


Why does my monitor keep going black randomly?

A hardware failure in the monitor very likely causes it.

It could be due to a faulty connection between the video cable or driver board and the LCD panel or some other issue with one of the internal components.

If possible, try plugging it into another device to see if it works correctly. If not, you may need to get your monitor serviced or replaced.

Why does my Samsung monitor flicker and then go black?

Your Samsung monitor may be flickering and going black due to a faulty power source, out-of-date drivers, or other related issues.

Check that the power cable is firmly connected to the monitor and your computer tower. 

If possible, try using a different cable or wall outlet to see if this resolves the issue.

You should also ensure all of your display drivers are up-to-date by checking online for any updates from Samsung’s support website.

Why does my monitor sometimes go black for a second?

Your monitor may be experiencing an issue with loose or damaged cables.

This can cause a brief disruption in the signal to your monitor and result in it going black for a second.

Check all cables connected to the monitor, ensure they are firmly connected, and look for any signs of damage or loose connections.

Replace any damaged cables with new ones if necessary.

Why is my monitor going black randomly while gaming?

You may be experiencing issues with your monitor due to issues with the hardware, such as a faulty video cable or graphics card, or issues with your software, such as outdated drivers.

If the issue persists even after updating drivers and checking cables, then there may be an issue arising from another source of interference.

It is also recommended to check for any power-saving settings on your computer that could be causing the monitor to go black suddenly.

Why do my monitors keep going on and off?

Your HDMI cable might be broken, causing the monitors to turn on and off intermittently.

Check both devices’ HDMI ports to ensure that the HDMI cable is firmly connected and not damaged. 

You can also try using a different HDMI cable in case the old one has gone bad or is not working properly.

It could also be an issue with your monitor settings, so check these before troubleshooting.

Why does my monitor go black when I set it to 144hz?

When you set your PC to a combination of resolution and refresh rate that your monitor doesn’t support, the monitor may go black or display an error message.

In this case, you may need to adjust the settings on your PC to match the native resolution and refresh rate of your monitor.

This can be done in the display settings on your PC. Select a combination of resolution and refresh rate supported by your monitor for optimal results.

Once you’ve made the changes, restart your computer for them to take effect.

Leave a Comment

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

Scroll to Top