(SOLVED) Why Does My Acer Monitor Keep Flickering?

Why does your Acer Monitor Keeps Flickering?

The main  reason why your Acer monitor keeps flickering is because of an incorrect refresh rate setting, faulty display driver or an outdated graphics card.


The “refreshing” process is quite fast – and could reach 100 times per second or even more. But the rate could sometimes fall down to 30 times per second. Recent updates on your computer can also mess up your refresh rate.


Possible Reasons:

  • Graphics card error
  • Outdated BIOS
  • Dust or moisture buildup
  • Loose wires


Graphics Card Error

An outdated graphics card creates problems for the smooth performance of your computer. The component is responsible for the device’s display. It is important to see if the graphics card is compatible with the monitor. If it doesn’t, the device will start flickering.


Outdated BIOS

Outdated BIOS is another reason for your monitor’s flickering. Microsoft sends timely notifications of available updates. Ensure that you have installed the updates on time.


Dust Or Moisture Buildup

Is your monitor close to a window? Or does the room the computer is in receive a good amount of dust? There are chances that dust particles are getting into the monitor through its tiny holes. The dust buildup causes flickering, so you should make a habit of regular cleaning the device.


Loose Wires

HDMI cables are quite sturdy, and they don’t usually lose their position. But if there have been frequent movements of the monitor, there is a possibility that the wires loosened a bit. It may cause your monitor to flicker, creating disruptions in your work. Tighten the cables for a seamless display on your monitor.


Acer monitor keeps flickering


How to fix anAcer monitor that is flickering?

To fix an Acer monitor that is flickering, update display drivers, change display settings or try uninstalling incompatible apps.


Update Display Drivers [Method 1]

  1. Select Start.
  2. Expand Device Manager.
  3. Click on Display adapters.
  4. Expand the Uninstall device button.
  5. Click the small square box next to “Delete the software for this device.”
  6. Restart the computer.
  7. Now install a third-party app for installing drivers.
  8. Open the application and Select the Scan Drivers option.
  9. Tap on the Update Now button.


Change Display Settings [Method 2]

  1. Press the Windows + I keys on the keyboard.
  2. Select Settings.
  3. Expand System.
  4. Go to the Display option.
  5. Click on Display resolution.
  6. From the drop-down menu, click on the options set the screen resolution to the recommended level.


Uninstall Incompatible Apps [Method 3]

  1. Press the Windows + I keys.
  2. Expand Settings.
  3. Go to the Apps & features button and Click on applications that may be causing problems.
  4. Click Uninstall.


Update BIOS [Method 4]

  1. Go to Acer’s technical support website.
  2. Expand Drivers & Software.
  3. Go to the Manual Update button.
  4. Select the BIOS/IEFI option.
  5. Tap Download.
  6. Select the .exe file and follow on-screen instructions.


Device’s Replacement [Method 5]

Try fixing another monitor to your system to see if the problem persists. If it does, it means that the problem lies in the computer’s software and not in the monitor. It will require you to get the software updated or get the system checked by an expert.


If the other monitor works perfectly well, it indicates that your original monitor is out of order and needs replacement.


How to fix the Acer monitor flickering on and off?

To fix Acer monitor that keeps flickering on and off, disable desktop manager or modify refresh rate.


Disable Desktop Manager [Method 1]

  1. Right-Select the Windows taskbar icon.
  2. Go to the Power User menu.
  3. Open Run.
  4. In the dialog box, type the words services.msc
  5. Scroll down to “Desktop Window Manager Session Manager.”
  6. Select it.
  7. Select the Stop button.
  8. Right-Select the “Desktop Window Manager Session Manager” button again.
  9. Click on Properties.
  10. Go to General
  11. Modify the start-up type to Disabled.
  12. Press OK.


Modify Refresh Rate [Method 2]

  1. Select the Windows taskbar button.
  2. Open the Power User menu.
  3. Click on Settings.
  4. Select System.
  5. Expand the Display option on the side taskbar.
  6. Click on the Multiple displays tab.
  7. Select Advanced display settings.
  8. Go to the display information for your external monitor.
  9. Observe refresh rates.
  10. Click onDisplay adapter properties.
  11. Modify settings.


Why is my Acer monitor flickering at 144Hz?

The reason your Acer monitor is flickering at 144Hz is because of the automatic updates by Microsoft.


To resolve the issue:

  1. Install the Acer Vantage app.
  2. Run the system update.
  3. It will scan the drivers that need updates.
  4. Install the updates.


Why is my Acer monitor flickering at 240Hz?

The reason why your Acer monitor is flickering at 240Hz is because of an outdated graphics card.


To fix the issue:

  1. Install the updates of the graphics card driver.
  2. Check the display cable and see whether it is loosened.
  3. Check the power cable.
  4. Modify display settings and set the refresh rate to the maximum.


How to fix flickering horizontal lines on my Acer computer screen?

To fix flickering horizontal lines on your Acer computer screen, install the latest operating systems, remove magnets and other electronics from the device’s range or change the screen resolution.


Here are some other quick fixes that can help you get rid of the problem of flickering horizontal lines on your monitor screen:

  1. Turn on and off your monitor repeatedly
  2. Restart the computer
  3. Connect a different monitor
  4. Check the monitor connection
  5. Change the refresh rate of the monitor
  6. Run the troubleshooter to scan incompatible apps
  7. Get the replacement of the monitor – in case nothing else works


Why is my Acer screen flashing different colors?

The reason why your Acer screen is flashing different colors is because of outdated drivers. The timely installation of the drivers doesn’t generate such problems.


To fix the issue:

  1. Hold the Windows + I keys.
  2. Go to Device Manager.
  3. Click on video adapters.
  4. Right-Select drivers.
  5. Uninstall them.
  6. Restart the computer.
  7. Install the drivers.


You can also try going with a hard reset of the device. But if the problem doesn’t get resolved, it is because the monitor needs a replacement. You should buy a new one.


Why is my Acer monitor blinking green light?

The reason why your Acer monitor is blinking green light is because of a disconnected monitor cable. At the back of your monitor, you will find an HDMI cable that is firmly held with the help of screws.


Even though the cables don’t move from their position, it sometimes does loosen, which in turn results in your monitor blinking green light.


Outdated graphics card drivers also cause the monitor to blink green light. Try these steps to resolve the problem:


  1. Hold the Windows + I keys.
  2. Go to Device Manager.
  3. Click on video adapters.
  4. Right-Select drivers.
  5. Uninstall them.
  6. Restart the computer.
  7. Install the drivers.


Why is my Acer monitor blinking red light?

The reason why your Acer monitor is blinking red light is because of a faulty battery. When the monitor is low on power or when its connection with the power socket is shaky, it begins flashing red lights.You should get the CPU’s battery replaced if the issue doesn’t go away.


It can be resolved through the following steps:

  1. Check the monitor’s cable – ensure that they are not worn out.
  2. Reset the display driver.
  3. Create a new Windows user profile.
  4. Reseat the graphics card.
  5. Uninstall applications making problems.
  6. Correct and/or refresh the refresh rate – the number of times the screen’s image is erased and rearranged.


Why is my Acer monitor blinking blue light?

The reason why your monitor is blinking blue light is because you have set the refresh rate to the level that the monitor cannot possibly handle.


Other reasons for this problem are:

  • Outdated drive
  • Loose cable connections
  • Monitor in power save mode
  • Faulty power source
  • Defective capacitors
  • Defective circuit breaker or power source


To fix the issue:

  1. Get an electrician to check the power outlets.
  2. Take measures to stabilize the voltage.
  3. Extend the inactivity period of the monitor to prevent it from frequently slipping into power save mode.
  4. Install the drivers; it can be done by following these steps:
  • Hold the Windows + I keys
  • Go to Device Manager
  • Click on video adapters
  • Right-Select drivers
  • Uninstall them
  • Restart the computer
  • Install the drivers

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