Acer Monitor Blue Light On But Screen is Black [Solved!]

Acer monitors are known for their quality and performance, but when your Acer monitor has a blue light on but the screen remains black. 

This can get frustrating because it prevents you from utilizing your monitor to its full potential. 

In this article, we will examine what may cause your Acer monitor to stay black with a blue light constantly lit, along with solutions that may help solve the problem. 

If you’re experiencing issues getting your Acer monitor functioning properly again, continue reading and discover how you can get back up and running quickly.

Why is my Acer monitor blue light, but the screen is black?

Some issues can cause the problem if your Acer monitors turn on but there is no picture. First, check that your power and HDMI cables are properly connected, and if the issue persists you may need to adjust the screen brightness or update your BIOS settings, monitor driver, factory reset your monitor or test for a hardware issue with the display panel.

How to fix Acer monitor with blue light, but the screen is black?

Have no idea how to fix your Acer monitor if it is on with blue light, but the screen is black? Here are some steps you can follow. 

First, check that the power cable and HDMI cable connections are secure. If not, try connecting them again. 

Then modify the screen brightness settings, update BIOS settings, and update your monitor driver if required. 

If these don’t work for you, the last step is a factory reset of your monitor or checking for any hardware issues in its display screens.

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

  1. Power Cycle Acer Monitor
  2. Check Power Cable
  3. Check HDMI Cable
  4. Modify Screen Brightness
  5. Update BIOS Settings
  6. Update Monitor Driver
  7. Factory Reset Your Monitor
  8. Test the Display Screen
  9. Hardware Issue
Acer Monitor Blue Light On But Screen is Black [Solved!]

1- Power Cycle Acer Monitor

Acer monitors can be power cycled by turning them off and back on. 

This process helps reset the internal components of an Acer monitor to clear any memory or stored settings that might be causing issues. 

Before powering down the Acer monitor, it is imperative to disconnect all its cables first. 

After waiting for a few seconds, reconnect all cables and turn on the Acer monitor if it comes with a blue light but a black screen, there may be a problem with either the Acer monitor or its connected component. 

To further diagnose this issue, you can always test different cables and connections to find out if one has any fault.

2- Check The Power Cable

When Acer monitor displays blue light, but the screen is black, one of the troubleshooting steps is to check power cord connectivity. 

Ensure that it is securely connected to your Acer monitor and a power source like an electrical outlet or surge protector; it’s important. 

If there is no such connection between the wires, it may cause a disruption in the electricity supply, which results in a non-displaying image on your Acer monitor. 

You must also look for any wear and tear in the cables or wires connected to your Acer monitor. 

This can include fraying, exposed wire, or any damage that interrupts power flow. If visible signs are present, you must replace them. 

Also, ensure all connectors attached to your Acer monitor are well connected always.

3- Check HDMI Cable

If your Acer monitor has a blue light on, but the screen is black, there could be an issue with the HDMI cable. 

This can occur if the cable has been used for a long time and is worn out. Over time, old cables are prone to sparks or short circuits, which may result in anomalies like this. 

You should check and ensure that your HDMI wire is properly connected to the monitor and computer. 

If it isn’t, you should replace it with a brand new one to resolve this problem. If the wire is secure, you need to check whether its connection has been broken. 

Try connecting another pc to your Acer monitor to determine if it’s your computer or monitor causing the problem. 

You may need to modify screen brightness if none of these solutions work.

4- Modify Screen Brightness

Acer monitors may have a blue indicator on the front of the device to indicate that it’s turned on even when the screen is black. 

This typically indicates a power supply issue, and there could be other issues. 

If your Acer monitor’s blue light is on, but the screen remains blank, adjust brightness levels or display settings by accessing the Acer OSD (On Screen Display) menu. 

Press Menu to access this menu in an Acer monitor, and use up/down arrows to navigate through options until you find one labeled ‘Brightness’ or ‘Contrast.’ 

Once you find this setting, use the left/right arrows to increase or decrease brightness levels for your Acer monitor until your desired level is achieved. 

Additionally, some Acer monitors also feature an ECO mode which helps reduce power consumption and lower brightness levels automatically.

5- Update BIOS Settings

Acer monitors with blue light, and a black screen can be updated by entering the computer’s BIOS menu. 

For this, you will have to power off your Acer monitor and press and hold the “F2” key while it is powered on again. 

This should take you to the BIOS menu, where you can make necessary changes. 

One such change might be changing your Acer monitor’s default boot order to boot from an external device instead of its internal drive, which may not always work. 

After making all these changes, save and exit the BIOS menu before restarting your Acer monitor. 

Hopefully giving you a fully functional display again. If not, there could be further troubleshooting steps required beyond this point.

6- Update Monitor Driver

Updating the monitor driver on Acer monitors can help resolve issues such as a blue light being on but the screen being black. 

The Acer driver updates provide important bug fixes, security patches, and other enhancements to ensure Acer monitors are functioning optimally. 

To update Acer monitor drivers, users must first download Acer Monitor Manager software, then use it to detect if any applicable driver updates are available for their model Acer monitor. 

Once detected, these updates can be applied directly from within the Acer Monitor Manager software with just a few clicks. 

Keeping Acer monitor drivers up-to-date is an important step in ensuring optimal performance and troubleshooting potential issues.

7- Factory Reset Your Monitor

Factory resetting your Acer monitor involves returning the settings to their original defaults. 

This can be done by either pressing a combination of specific buttons on the monitor or via the system settings menu on your computer. 

If you press the right combination of buttons, you will see the Acer logo appear and light up blue, indicating that it has been successfully reset. 

After performing a factory reset, all setting changes made previously will be undone, and you will have to make those adjustments again before using your Acer monitor. 

You may also need to re-upload any software drivers or updates so that your Acer monitor works properly afterward.

8- Test the Display Screen

To test the display screen of an Acer monitor with a blue light on but a black screen, one must follow multiple steps. 

First, ensure that the power cable is connected properly and that any peripheral devices like HDMI cables are securely plugged into their ports. 

Second, turn off and back on if an external power switch is available to fix any issues related to the power supply or signal reception interference. 

If nothing works, check if the monitor has an integrated hardware reset button or key combination to resolve these complications. 

If all else fails, connect a separate display device to the Acer monitor’s port to confirm that it correctly receives input signals from other devices.

9- Hardware Issue

Acer monitors are prone to a hardware fault that results in the blue light being illuminated even when the screen is completely black. 

If there is an issue with the backlight or power supply, it may result in no visual data being shown on the monitor.

Before taking further steps, users must ensure that all cables are securely connected and then try connecting them to another port if this fixes the problem. 

Internal component issues inside the monitor or external power source problems might also cause such faults, which is why professional help from a technician for further diagnosis and repair is highly recommended.


In conclusion, if your Acer monitor has a blue light on but the screen is black, you can troubleshoot your monitor problem by following these steps:

  1. Power Cycle Acer Monitor
  2. Check Power Cable
  3. Check HDMI Cable
  4. Modify Screen Brightness
  5. Update BIOS Settings
  6. Update Monitor Driver
  7. Factory Reset Your Monitor
  8. Test the Display Screen
  9. Hardware Issue

If you tried all the steps mentioned in this article and didn’t find a solution, contacting Acer support is better.

If your monitor has a serious problem, buying a new monitor is better than wasting money on an old one.


How do I fix a black screen on my Acer monitor?

If your Acer monitors with a black screen is not working, you can try connecting it to a different computer to adjust the display settings or perform a reset. 

If that doesn’t work, you may need to replace the power cord or LCD panel. Verifying if your Acer monitor works on another device before proceeding further is advisable. 

Additionally, powering off and unplugging your monitor for at least 15 seconds before plugging it back in and turning it on again will help before trying other methods.

What does blue light mean on Acer?

Acer devices feature a blue light filter that employs technology to lower the amount of blue light emission from the screen. 

This safeguard is intended to shield users from any possible harm caused by excessive exposure to blue light, such as eye strain and disrupted sleep patterns. 

The degree of blue-light radiation emitted by Acer products may be adjusted depending on individual preferences.

Why is my Acer screen black when I turn it on?

If you are experiencing any issues, it is likely that a corrupted graphics card driver is to blame. 

To fix this issue, you will first need to shut down your computer and remove all the power supplies from it before removing the graphic card and reinstalling it again; then reboot your system to update its drivers. 

After that, reconnect all the power cables and turn on your computer one more time to see if there are still any problems.

How do I fix my screen from going black?

There could be several issues behind your screen going black. First, ensure that all the connections are properly secured, and there is no damage to any cables. 

If everything seems alright, try restarting your device or testing it with an alternative display. 

If you use a laptop, you may want to update graphics drivers or reset power settings. 

If nothing works out for you and professional assistance is needed for further resolution, contact someone immediately.

Can Black Screen of Death fix itself?

The Black Screen of Death (BSOD) is a frequent issue that affects Windows-based computers. 

It occurs when the operating system fails to respond or crashes due to a critical error in the hardware. 

The error can strike suddenly and without warning, leaving users unable to access their computer or any of its applications. 

Locating the cause of the problem can be challenging because it often involves corrupt files or software issues but frequently has its roots in hardware malfunctions or faulty components.

Can a virus cause a screen to go black?

In contrast to a human black screen of death, caused by a heart attack and representing the end of life, a computer’s black screen of death results from malicious software known as malware infecting its operating system and corrupting files. This can cause the system to fail to load properly.

What does the black screen of death?

Black screen of death (BSOD) is an error screen displayed by some operating systems after detecting a critical system error that might cause the computer to crash. 

It’s usually caused because of incompatible software, hardware issues, power outages, or other computer setup problems. 

Viruses and other malicious software may also trigger the BSOD. Regularly scanning for viruses and updating software to the latest version can prevent them.

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