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How to Fix a PC Monitor that Keeps Turning OFF (STEPS)

Why does my monitor keep turning OFF?

Your monitor may keep turning OFF because of an outdated graphics card driver, incorrect BIOS setting, a faulty monitor or interference from third-party applications.


  • Outdated graphics card driver
  • BIOS setting
  • Faulty monitor
  • Bad or loose cables
  • Third-party applications
  • Scheduled task
  • Malware
  • Registry key issues
  • Graphics card problem
  • Pending Windows update


As highlighted above, malware, registry key issues, a graphics card problem or a pending Windows update can also cause the monitor to keep turning OFF.


Outdated graphics card driver

An outdated graphics card driver can cause the monitor to keep turning OFF randomly. The problem tends to stop when the graphics card driver in the computer is of the latest version.


BIOS setting

If the BIOS/UEFI setting has changed from the default one, you may experience the turning OFF issue tends to happen. They must be reverted to the default settings or the latest firmware if the problem occurs with the defaults.


Faulty monitor

The monitor is likely to keep getting turned OFF if it’s faulty or due to some settings in the monitor. The settings on the old monitor can be first checked before trying out a replacement monitor.


Bad or loose cables

There is the possibility of one or more cables connected to and from your monitor being defective due to instances such as fraying or breaking. You will also have this problem if these cables are also loose and not secure in place.


Third-party applications

If the problem has started occurring after you installed third-party applications, then they can be the reason for the problem. You might have to remove them.


Scheduled task

The monitor may turn OFF due to a scheduled task in the background. The task may be activated to switch OFF the monitor after a stipulated time.



Malware in the computer can trigger the turning OFF issue. With frequent Internet usage, the computer is prone to malware attacks if it’s not updated with the latest antivirus.


Registry key issues

A system registry mess-up can result in the monitor turning or shutting OFF. This can be something like an incorrect setting of the registry keys.


Graphics card problem

The monitor has chances of turning OFF because there is a problem with the existing graphics card such as getting damaged.


Pending Windows update

The turning OFF of the monitor may be because the operating system has not been updated for a while. Windows operating system keeps getting updated from time to time.


PC monitor keeps turning off


Why does my monitor keep turning OFF and ON?

Your monitor is likely to keep turning OFF and ON due to monitor overheating, faulty graphics card, loose cables or a defective power supply.


  • Monitor overheating
  • Faulty graphics card
  • Loose cables
  • Defective power supply
  • Activated energy-saving mode or screensaver
  • Incompatible refresh rate
  • Stuck monitor buttons
  • Long HDMI cable
  • Timer setting


An activated energy-saving mode or screensaver, incompatible refresh rate, stuck monitor buttons, a long HDMI cable or a timer setting are some other reasons why the monitor tends to turn OFF and ON as mentioned earlier.


Why does my computer monitor keep turning OFF and shows no signal?

Your computer monitor may keep turning OFF and say no signal because of a wrong cable connection, a BIOS problem, outdated graphics drivers, a display setting or an overdue Windows update.


The steps mentioned below offer a walkthrough on what you can try doing to stop the computer monitor from turning OFF and displaying the no signal message.


  1. Check if the display cable has been connected to the correct port and do the change if needed. If your computer has two VGA ports, make sure that the cable is connected to the VGA port of the graphics card and not that of the motherboard.
  2. Check if the BIOS settings have got affected for some reason and reset to the default settings. In some cases, an update to a later version may be needed.
  3. Check if the graphics and chipset drivers are outdated and update them to their most recent versions. You may consider uninstalling the older versions before doing the update.
  4. Check if a setting to turn off the monitor has been activated in the computer and deactivate it. You will have to do this through Settings.
  5. Check if your Windows operating system has any pending updates and do them at the earliest. The updates may solve the problem.


Why does my monitor turn OFF when I close my laptop lid?

Your monitor is likely to turn OFF when you close your laptop lid due to a power options setting.


You can follow the steps outlined here to solve the problem of your monitor turning OFF when the laptop lid is closed.

  1. Right-click the Battery icon in the system tray at the right bottom of your desktop.
  2. Select Power Options to open the Power Options
  3. In the left pane, click Choose what closing the lid does.
  4. In the Power button and lid settings section, select Do nothing for the On battery and Plugged in options for the When I close the lid:
  5. Click Save Changes.


You can also perform the first step through the Settings menu as by Settings>System>Power & sleep. In the Power & sleep window, click the Additional power settings link.


Why does my monitor turn OFF while playing games?

Your monitor tends to turn OFF while playing games because of an overheating problem, an improperly seated video card, outdated drivers or a loose or defective video cable.


The steps presented below can help you fix the problem of your monitor turning OFF when you play games.

  1. Check if the computer is getting overheated and take steps to resolve this issue. For a desktop monitor, open the computer’s cooling system and remove the thermal paste. Clean the accumulated dust and/or dirt and apply the fresh thermal paste before closing the cooling system again. In the case of a laptop, all that you have to do is to make use of a cooling pad.
  2. Check if the video card of the computer is placed properly and seat it firmly in its slot if needed.
  3. Update the drivers of the graphics card to their latest versions either manually or automatically. If you opt for the manual mode, you have to do a download and installation of the most recent version from the manufacturer’s website.
  4. Check the video cable for indications of damage or loose connections. A bent and/or frayed cable should be replaced while a loose cable must be tightened. You can consider doing the same check for the power cable as well.


Monitor turns OFF and ON repeatedly Windows 10

Your monitor turns OFF and ON repeatedly in a Windows 10 system due to a power setting change, a pending update or an outdated graphics driver.


These steps listed below can guide you in addressing the problem of the monitor turning OFF and ON repeatedly in a Windows 10 system.

  1. In the Run window (Win+R keys), type cpl to open the Power Options window. Click the Change plan settings link corresponding to the current or custom plan. In the Edit Plan Settings window, select Never for the On battery as well as Plugged in fields for the Turn off the display: and Put the computer to sleep: fields. Click the Save changes button.
  2. Check if your system has a pending Windows 10 update and do the required update. This may resolve the issue.
  3. Uninstall the existing graphics driver and reinstall the same with the latest version by typing msc in the Run window to open Device Manager. Right-click on the graphics driver and click Properties to open the properties window of the driver. Click the Driver tab followed by Uninstall Device and then OK. Download and install the latest version of the same driver from the manufacturer’s website.


Monitor turns OFF and ON repeatedly Windows 11

Your monitor turns OFF and ON repeatedly in a Windows 11 system because of a faulty GPU, a defective power supply unit, corrupted or incompatible graphics card driver or loose cable connections.


The steps here offer different ways of preventing the monitor from turning OFF and ON repeatedly in a Windows 11 system.

  1. Check if the problem gets resolved by using another GPU in place of the old one. If it does, it indicates that the old GPU was faulty. You can try removing the graphics card, cleaning it, reseating it properly once again and checking if your problem is solved before opting for a replacement.
  2. Check if the power supply fans are working properly and change them if they are broken. You must also watch out for a loose power cable connection and tighten it. Make sure that the power supply unit is free of dust as well.
  3. Update the graphics card driver to the latest version from the website of its manufacturer. Often, drivers tend to be incompatible rather than corrupted.
  4. Make sure that none of the cables connected from and to your monitor is loose and tighten them so that they are secure in place.
  5. Take preventive measures to ensure that the computer isn’t getting overheated. One common reason for overheating is dust/dirt accumulation.


How do I stop my monitor from turning OFF?

You can stop your monitor from turning OFF by updating the graphics card driver, resetting the BIOS setting, replacing the monitor and checking the cable connections.


Some other fixes include removing third-party applications, clearing a scheduled task and deleting malware. Fixing the registry key issues and replacing the graphics card and updating Windows can also help.


How to stop your PC monitor from turning OFF:

  1. Uninstall the current version of the graphics driver and download and install the newest version from the manufacturer’s website.
  2. Reset the BIOS/UEFI to the default settings. If this doesn’t help, consider a firmware update.
  3. Replace the existing monitor with a different monitor if you think that you have a faulty monitor.
  4. Check all cable connections and make sure they are in good condition and firmly seated in position.
  5. Remove third-party software or applications from the computer if the problem has started triggering after their installation.
  6. Check for any scheduled task in the Task Scheduler window and turn it OFF. You can open the Run window and type msc to open the Task Scheduler window.
  7. Run an updated antivirus to perform an offline scan and remove all antivirus and malware in the computer.
  8. Clean the system registry and fix the registry key issues by using tools like CCleaner to solve the problem.
  9. Update the Windows 10 operating system on your computer to the most recent version.
  10. Replace the existing graphics card with a new VGA card. You should do the replacement after ensuring that the drivers of the older card are replaced.


How to fix monitor turning ON and OFF?

You can prevent the monitor from turning ON and OFF by preventing the monitor from getting overheated, replacing the faulty graphics card and tightening loose cables.


Replacing a defective power supply, disabling the energy-saving mode or screensaver and lowering the refresh rate may also help. Releasing the stuck monitor buttons, using a shorter HDMI cable and resetting the timer are some other fixes.

These steps outlined here help to fix the monitor turning ON and OFF problem.

  1. Prevent the monitor from getting overheated by cleaning the dust and dirt on its surface as well as the vents to prevent blockage.
  2. Remove the faulty video or graphics card and check if the problem persists when a new one is put in its place.
  3. Watch out for loose connections of cables from and/or to the motor and tighten them. Replace damaged cables.
  4. Do a power supply replacement if the problem still exists after ensuring that the fans of the existing unit are okay, the cable is intact and the unit is clean.
  5. Turn OFF the screen saver and energy-saving mode if they are activated.
  6. Lower the refresh rate of the monitor to a slightly lesser value than the current value.
  7. Release the stuck buttons of your desktop by using some alcohol as a stuck button can cause a short resulting in the ON and OFF action.
  8. Opt for a shorter HDMI cable such as a 3-foot cable in place of a 6-foot HDMI cable if possible.
  9. Check for a timer setting in the settings of the monitor and turn it OFF.


Samsung monitor keeps turning OFF

You can fix a Samsung PC monitor that keeps turning OFF by fixing a loose power cord, cleaning the dust buildup or bad capacitors in the power board.


  1. Check for proper connection of the power cord at both ends. The cord should be connected tightly to both the wall outlet and the monitor. This is a good chance to make a check on the other cables too.
  2. Remove the dust from and around the monitor and power supply unit. This dust can pave way for overheating and turn the monitor OFF.
  3. Check the power board for bulging or leaking capacitors and replace them. Sometimes, the power supply unit by itself may be faulty and have to be changed.


LG monitor keeps turning OFF

You can fix an LG PC monitor that keeps turning OFF by updating the video card drivers and replacing a faulty monitor.

  1. Check if it’s time for an update of the graphics/video card drivers and do the required update. Uninstall the older versions if needed.
  2. Replace the existing monitor with another one and see if the problem is resolved. This will fix the issue if the monitor has a problem such as shorted buttons.


BenQ monitor keeps turning OFF

You can fix a BenQ monitor that keeps turning OFF by reducing the refresh rate, checking the power cord or disabling a timer setting.

  1. Check if the refresh rate setting for the monitor is a very high value and lower it. This must be done in the Display setting that you can access through the Settings
  2. Tighten the power cord if you find it has become loose or replace it if it shows signs of damage.
  3. Open the settings of your monitor using the button at the bottom and look out for a timer setting. If you find that a timer has been activated, you must disable it.


ASUS monitor keeps turning OFF

You can fix an ASUS monitor that keeps turning OFF by changing the faulty controller board, replacing the defective capacitors or substituting the bad power cord with a new one.

  1. Replace the controller board of the computer and see if you find a solution to the monitor turning OFF problem. If so, the problem was with the original controller board.
  2. Inspect the power board for signs of defective capacitors as mentioned above. Do a board replacement or just the capacitors with the same specifications.
  3. Look out for signs of a bad power cord such as bending or breaking and change it. If it’s just loose, tightening the cord at both ends should help.


Acer monitor keeps turning OFF

You can fix an Acer monitor that keeps turning OFF by tightening loose cables, using the correct display cable and updating the graphics card drivers.

  1. Tighten all the cables with connections to and/or from the monitor including the power cable.
  2. Try using a DP cable in place of an HDMI cable and check if the problem gets solved. You may at times have to use an HDMI cable of a different length.
  3. Make sure that the drivers of your graphics card are updated.

Ernie Lo

Ernie Lo is a qualified web designer and web developer. He works as an IT support technician and website manager at Benleigh Vending, and he also fixes vending machines.

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