Monitor Power Light Blinking But No Display [Solved!]

I was operating my computer when suddenly the screen went black. I tried everything to turn my monitor off and restart it again, but nothing happened. 

The power light on my monitor continued to blink, indicating that the machine was getting electricity. 

However, there was no image whatsoever, leaving me frustrated. 

I started looking into common issues to discover what might be causing the issue of the black screen of the monitor. 

I will detail my experience with regard to what things could cause this problem and also provide you with some solutions to fix this.

Monitor Power Light Blinking But No Display

If your monitor power light blinking but there is not display, it could be due to glitches, a faulty power cord or HDMI cable, dust in the ports, loose cable connection, resolution issues, corrupted graphics card, To troubleshoot this, you will need to power cycle your monitor, replace the Power and HDMI cables, clean the ports, re-connect cables, change resolution and replace the graphics card.

Monitor Power Light Blinking But No Display Reasons [Solved!]

1- Power Cycle Your Monitor

Power cycling your monitor is a process that involves turning it off and on again. 

Which temporarily clears out any power issues or settings that may be preventing the display from working properly. 

To perform a power cycle, turn off the monitor completely, unplug its power cord from the electrical outlet, wait for 30 seconds, and then plug it back in. 

If the monitor is plugged into a power strip, turn off the power strip and wait 30 seconds before turning it back on. 

After this process, turn your monitor on to see if the display works correctly. If it still doesn’t work, try using a different cable or port. 

2- Replace The Faulty Power Cord

If the power light of your monitor is still blinking and no display it can be because of a faulty power cable. 

Replacing a faulty power cord can be a straightforward process. 

First, it is important to ensure the power outlet is functional by testing it with a functional device such as a lamp or radio. 

If the outlet does not work, then the issue could lie within the power cord itself and will need to be replaced.

When replacing the faulty power cord, it is important to look for one that matches the voltage requirements of your monitor. 

Once you have found an appropriate replacement cord, disconnecting the old one and connecting the new one should be relatively simple. 

3- Faulty HDMI Cable

Replacing a Faulty HDMI Cable can be a simple process to fix the monitor that is blinking and shows no display. 

First, make sure that the cable is indeed faulty and not just a problem with the monitor. 

If it is determined that the cable needs to be replaced, shut off the computer or device connected to the monitor and unplug any connected cables. 

Then, unscrew any screws from the back of the monitor that is holding down the HDMI cable input port. 

Once removed, gently pull out the old HDMI cable and insert a new one into its place. 

Finally, reconnect all cables to their respective places before powering on both devices. With a new HDMI cable in place, you should now have full access to your monitor again.

4- Dust Inside The Port

If your monitor’s power light is blinking and shows no display,  it can be because of the dusty ports of your monitor. 

Dust inside a port can cause many issues and is highly detrimental to the health of your monitor. 

When dust accumulates, it affects the airflow which in turn interferes with the functioning of the monitor. 

Dust is electrically charged and when it comes into contact with other components on a circuit board, it can cause arcing or shorting, leading to damaging electrical shocks that can damage or destroy components. 

Furthermore, dust particles can block ventilation ports or obstruct cooling fans, causing them to overheat and malfunction. 

Overheating of components from lack of airflow may also cause pixels to burn out resulting in permanent screen damage. 

To protect your monitor from dust damage, clean ports regularly with compressed air or vacuum lightly with a soft brush attachment.

5- Loose Cable Connection

When the monitor’s power light is blinking but there is no display, it could be an indication that a cable connecting the monitor to another device has come loose. 

This could include cables such as the power cable, video cable, or audio cable. In most cases, ensuring all cables are securely attached will correct this issue. 

It is important to check cables for any signs of wear and tear, as failing cables could present similar symptoms. 

If necessary, replace any damaged or worn-out cables with new ones. Additionally, make sure the power source for the device is functioning properly. 

It may be beneficial to unplug all cables from both devices before reconnecting them to ensure stability in the connection.

6- Disable The Power Saving Mode

The issue of a monitor power light blinking but no display can be easily resolved by disabling the power saving mode. 

This is an important step to take as it ensures that the monitor is able to remain active and running despite any potential disruptions in its power supply. 

To disable the power saving mode, users must first locate the settings menu on their monitor. 

Depending on their model, this may be found in either the “Display” or “Power Management” tab. 

From there, they should look for a box titled “Enable Power Saving Mode” and uncheck it to deactivate this feature. 

It is also important to note that this setting might have different names depending on the make and model of a user’s monitor. 

Additionally, some models may require users to manually set their monitors to never enter into sleep or standby mode.

7- Change The Resolution

When a monitor’s power light is blinking but there is no display, it could be an indication of an issue with the resolution of your monitor. 

Try changing the resolution of the screen by accessing its settings to fix your monitor problem. 

This can be done by clicking on “Display Settings” from your computer’s Control Panel. 

From this window, you will be able to select a new resolution for your display from a list of options provided. 

After selecting, your computer may require you to confirm your selection in order to save it, after which any flickering or other display issues should be resolved. 

In some cases, starting up the computer in Safe Mode may also help correct this issue as Safe Mode reduces graphics requirements. 

8- Corrupted Graphics Drivers

Corrupted Graphics Drivers can be the cause of a monitor power light blinking but no display. 

A graphics driver is the software responsible for communicating between the operating system and the hardware in a computer. 

When graphics drivers are corrupted, they can prevent the monitor from displaying anything. 

To resolve this issue, the graphics drivers need to be repaired or reinstalled. One way to repair corrupted graphics drivers is to use a driver updater tool. 

This will scan your system to identify any outdated or faulty drivers and then replace them with updated versions that are compatible with your hardware.

 Another solution is to manually uninstall and reinstall the drivers by searching for them online or using a manufacturer’s website. 

Why Is My Monitor’s Power Button Flashing?

It is likely that the power button of your monitor is flashing because the capacitors inside it have become defective and are no longer functioning properly. 

When defective capacitors swell up and deteriorate over time, they can cause the power button to flash as a warning signal that something needs to be replaced or repaired. 

You should take your monitor to a qualified technician for an inspection and repair before further damage can occur.

Why Is My Computer Light Blinking but Not Turning On?

The blinking light on your computer typically indicates that it is on standby and does not have sufficient power to turn on. 

This can be caused by a faulty or insufficient power supply, a bad motherboard connection, a dead or dying battery, or other hardware defects. 

It is best to check the system’s manual for troubleshooting tips before attempting any repairs yourself. 

Additionally, it may be worthwhile to consult with an IT professional if none of the suggested solutions work.  

If all else fails, it may be time to call in a repair technician to identify and fix the issue causing your computer not to turn on properly.

What to Do If the Monitor Is on but No Display?

If the monitor is on but displaying no image, there are a few steps you can take to try and rectify the issue. 

First, check the connections between your computer and the monitor. 

Ensure all cables are firmly plugged in and secure, as loose connections can stop a monitor from displaying an image. 

If the connections are secure, try turning up the brightness of the monitor. If this fails, you may need to contact a qualified technician for support.  

Alternatively, if you are comfortable troubleshooting computer hardware, you can do some simple checks yourself. 

Such as testing another monitor with your computer or examining inside your tower for any loose connections.

Why Is My Monitor on but the Screen Is Black?

Your monitor is on but the screen is black because it could be a sign of a few different issues. 

It could mean that your display settings are incorrect, the connection between your computer and monitor is loose or disconnected, the power cable to your monitor isn’t properly connected, or there may be an issue with the monitor itself. 

Check all of these possibilities before contacting technical support for assistance.


If your monitor power light is blinking but no display, you can troubleshoot your monitor by following these steps:

  1. Power Cycle Your Monitor
  2. Replace the Faulty Power Cord
  3. Faulty HDMI Cable
  4. Dust Inside The Port
  5. Loose Cable Connection
  6. Disable The Power Saving Mode
  7. Change The Resolution
  8. Corrupted Graphics Drivers

If you have tried all the given steps and the issue still exists, you should consult a professional if possible to ensure that the issue is fixed correctly and safely.

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