How to Fix Monitor Randomly Going Black

Lately, several users have been experiencing issues where their monitors suddenly go black momentarily. This behavior is reported to occur repetitively for as low is every second to every few minutes. What makes the issue worse is the fact that the monitor malfunctions without any specific event or time.

Monitor Randomly Going Black

Many users reported that this issue occurred either when intensively using graphics or just randomly. According to our research, there isn’t any official statement as well from official sources. In this article, we will go through all the reasons as to why this issue might occur on your computer.

What causes the Monitor to go Black Randomly?

After researching extensively on the issue and combining user reports, we concluded that this issue occurred due to several different reasons. Some of the reasons why your monitor might go black are but not limited to:

  • Bad PSU: The Power Supply Unit is known to be the most common culprit of making your monitor go black. Since this supplies the power to your motherboard, it might be possible that correct voltages are not delivered properly.
  • Video cable: The video cable whether is an HDMI or VGA connecting the monitor to your PC might be broken or damaged. This will usually cause a black screen when it is touched or randomly as well.
  • GPU: If you have dedicated GPU installed and have the monitor connected through it, it might also cause problems if it is damaged or not plugged in properly.
  • Overclocking: Overclocking might be useful for several users to boost their core power but it may also come with complications such as the one under discussion.
  • Outdated OS files: If the operating system files are corrupt or incomplete, they might be the root of the issue. Outdated versions of Windows also fit here.
  • Third-party Graphics Options: If third-party (such as AMD, NVIDIA) graphics enhancing features are being implemented, they might not be in sync with the operating system and cause various issues.
  • Power settings: The power settings in your system dictate the amount of power your computer will consume and at which instances will it stop consuming. If these power settings are not at sync with your usage, you may face like the monitor going black.
  • Bad drivers: Graphics drivers are the main driving force in connecting your operating system to the hardware. If they are outdated or corrupt, the communication will not go so well and you will have numerous issues.
  • Third-party software: Even though this is very rare, there might be some third-party software on your computer which might be conflicting and causing bizarre issues like the one under discussion. Here, we can try to troubleshoot and uninstall the software for good.
  • Power interference: Last but not least, if you have bad wiring in your home or power interference, your monitor might momentarily flicker. Some alternate steps can be taken to fix this method.

Before we move on to the solutions, make sure that you have an active internet connection and are logged in as an administrator. Also, we suggest that you backup your data just in case.

Solution 1: Checking HDMI/VGA Cable

There can be a case where your HDMI cable isn’t working properly or is damaged. The same thing can be said about your TV/monitor which might not be functional. Here, we will perform some basic troubleshooting techniques and see if they help us diagnose and solve the issue.

Checking HDMI/VGA Cable
  • Replace your HDMI cable. Before buying a new one, try plugging the current cable in another system and see if it works. If it doesn’t work, it probably means the cable is damaged. Replace the cable and try again.
  • Try a different input source to the monitor or TV. If you are using a laptop as an input source, try making the connection with another laptop and see if this makes any difference. If the signal is detected from the other laptop, it means there are either some misconfigurations in your laptop or the HDMI port is not working.
  • You can also try isolating the problem and see if the monitor/TV is working properly with other inputs.
  • If you are using an HDMI to VGA converter, this can be bad news. To confirm that the HDMI module on both your input and output are working properly, use a pure HDMI cable and check.

Solution 2: Disabling Overclocking

Overclocking is a very common feature in numerous PC builds nowadays. Here, the processor performs short bursts of computation for a small interval. During that interval, the CPU reaches its threshold temperature and the overclocking stops until the CPU is cooled again. There were numerous reports by users who indicated that disabling overclocking fixed their issue of the monitor going black again and again. Although these settings are meant to improve the quality of the computer, here they seem to do the opposite.

Disabling Overclocking

Here, we will recommend that you disable all type of overclocking and get your CPU running at the factory speed. On top of this, make sure that there are no computer enhancing programs running on your computer. These programs are known to conflict with the OS and graphics when trying to ‘optimize’ the computer by eliminating several important processes.

Solution 3: Updating Windows to the Latest Build

Microsoft releases frequent updates for fixing bugs or introducing new features. If you haven’t updated Windows for quite some time, it is recommended that you do right away. There have been similar cases in the past where the graphics system stopped working properly because of bugs induced in the system.

When these bugs are identified, Microsoft engineers roll out updates as soon as possible targeting the issue. After installing the updates, it seems that the monitor works perfectly. Make sure you are logged in as an administrator before continuing.

  1. Press Windows + S, type “update” in the dialogue box and open the application.
Checking for Updates – Windows
  1. Now Settings will be opened up. Click the button Check for updates. Now your computer will automatically check for any latest updates available and install them on your computer.

Note: An active internet connection will be required to apply the updates. Also, it might take some time depending on the size of the update.

Solution 4: Updating Graphics Drivers

As you might have guessed, graphics drivers are the main components connecting and relaying instructions from your operating system to the graphics hardware. If these are outdated or corrupt, you will experience stuttering and bizarre issues like the monitor screen going black. Here, we will properly uninstall the current drivers and then attempt at installing new ones.

  1. Download and install DDU (Display driver uninstaller) from its official website.
  2. After installing Display Driver Uninstaller (DDU), launch your computer in safe mode. You can check our article on how to boot your computer into safe mode.
  3. After launching the DDU, select the first option “Clean and restart”. This will uninstall the current drivers completely from your computer.
Clean and restart – DDU
  1. Now after the uninstallation, boot your computer normally without safe mode. Press Windows + R, type “devmgmt.msc” in the dialogue box and press Enter. Right-click on any space and select “Search for hardware changes”. The default drivers will be installed. Try launching the game and check if this solves the problem.
  2. In the majority of the cases, the default drivers will not work for you so you can either install the latest drivers through Windows update or navigate to your manufacturer’s website and download the latest ones.
  3. After you have installed the drivers, restart your computer and check if the problem is solved.

Solution 5: Checking your PSU (Power Supply Unit)

PSU is the main components which take AC power from the main outlet of electricity externally and then transmits the correct voltage to other components in your computer. For example, SATA connections might require more power than the motherboard. Here, if your PSU is damaged or not transmitting power properly, you will experience numerous problems ranging from your monitor blinking again and again to the computer crashing.

Checking PSU

What you can do here is trying another PSU temporarily. Check if the issue also occurs when using that hardware. Also, make sure that you change the cable connecting the PSU to your mains electricity outlet. If the issue doesn’t persist there, it means that you should get your PSU checked. If it does, you can continue with the other troubleshooting methods listed down below.

Solution 6: Uninstalling/Disabling third-party programs

Third-party programs such as NVIDIA GeForce Experience and AMD applications usually come bundled with graphics hardware/drivers. Usually, almost all of these programs allow users to change the graphics settings to enhance the features or add some custom ones.

Third-party graphics application

However, despite their usefulness, they are known to conflict with the system. You should disable all third-party programs running in the background and if some settings regarding the manipulation of graphics are present, make sure that you disable them as well. Here is the method on how to uninstall these applications:

  1. Press Windows + R, type “appwiz.cpl” in the dialogue box and press Enter.
  2. Once in the application manager, search for the application which was causing the issue, right-click on it and select Uninstall.
  3. After uninstalling the application, check if the issue is resolved.

Note: You can always save the temp configuration file of the third-party application in case you want to install it back on and don’t want to lose all the configurations you set.

Solution 7: Changing Power Settings

Power Settings are the main protocols or rules which dictates a computer how much power to consume and when to save it. These power settings might be set to a value which might not be compatible with your system or might be conflicting with your motherboard. Here in this solution, we will navigate to the power settings through the motherboard and change the settings.

  1. Press Windows + R to launch the Run application. In the dialogue box type “control panel” and hit Enter. This will launch your computer’s control panel. Make sure that View by: is set as small icons present at the top-right side of the screen.
  2. Once in the control panel, click on Power Options.
    Power Options – Control Panel
  3. Here you will see the mode of power set currently. If it is set as Power saver, change it either to High performance or Balanced.
    Power Plans – Windows
  4. If you have in the past changes some internal settings of each plan, click on Change plan settings and select Restore default settings to this plan.
  5. Save changes and exit. Restart your computer and check if the issue is resolved.

Solution 8: Checking your GPU

If you have a third-party dedicated GPU installed on your computer (such as NVIDIA/AMD), it is recommended that you check whether it is working properly and is properly attached. A malfunctioned GPU which is usually used a lot and is overclocked is known to cause the fluctuated output to the monitor.

Here, you can try disabling your dedicated graphics and see if the issue persists on your integrated graphics. If they do, it will help us troubleshoot what the culprit is. Below is the method on how to disable the dedicated graphics:

  1. Press Windows + R, type “devmgmt.msc” in the dialogue box and press Enter.
  2. Once in the device manager, look for Display adapters, right-click on the graphics card and click Disable device.
    Disabling Graphics Drivers
  3. After disabling the device, restart your computer and check if the issue persists.

Solution 9: Checking for Power Interference/Issues

This method might be the last but it is just as important as the other ones. Power interference issues are known to be a major cause of why your monitor fluctuates. You can make sure of this by observing the behavior of the monitor whenever you switch a light or some other electrical appliance.

Checking for Power Interference/Issues

If the monitor fluctuates, it means that your wiring isn’t proper or is very old. The solution to this is to try a UPS (uninterrupted power supply) which will regularize the voltage coming to your computer. If this fixes the problem, our diagnosis would be correct.

Note: If all the above methods don’t work, it probably means that you have to get your monitor checked.

Kevin Arrows
Kevin is a dynamic and self-motivated information technology professional, with a Thorough knowledge of all facets pertaining to network infrastructure design, implementation and administration. Superior record of delivering simultaneous large-scale mission critical projects on time and under budget.

Expert Tip

How to Fix Monitor Randomly Going Black

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