It’s very irritating. When you are watching movies in the home theater. Or doing the presentation in the meeting room. Projector flickering is very shameful in any type of business presentation. In front of the client and the boss.

And in the home theater while watching the movie. It could be the reason for the headache. To see the flickering image on the screen. It’s like someone has hacked your projector.

If the flickering is an issue with your projector. Don’t worry about the flickering. Because in today’s article. We are going to talk about it. 

We talk about the projector flickering in the two portions. First why flickering happens. And how you can solve this issue. Without being a technician. Most of the time. So let’s start our article today.

Reason and How to fix projector flickering.

We are going to talk about the reason for the projector flickering and how it can be resolved.

Eco Mode

Generally, people use eco mode for the projection. So they can use the projector for a long time. Or their projector light source life can be increased. 

This step helps you to use the projector for a long time. But sometimes this projector mode becomes the reason for the screen flickering. For the projection. Your lamp should need a certain amount of power. 

And in eco mode. Your projector lamp is unable to get that amount of power. That’s why your screen is flickering. So how can you overcome this issue?

You have to move from the eco mode to normal or high mode. In your projector. Not for permanent. Don’t worry. Change this setting after some hours of use. And your issue will be resolved.

So that’s how you will deal with the flickering screen. Try this one. Then move for the next remedy of flickering.

Damage bulb

There is an anode in your projector lamp. Which generates the arc. When the projector is plugged into the power outlet. With a long time of use of the projector. Projector lamp anode got faltered. 

And when the projector is plugged with the power source. Arc generated on the tip of the lamp anode. And that arc does not fall off the other anode. 

And the arc falls somewhere else. Which causes the issue. And you see the flickers screen. There are four ways. You can solve this issue. If the projector bulb or image is flickering. Because of this reason. 

You can change your projector power consumption mode. Or you can also try to change the picture mode. If all these things don’t work. You have to change your projector lamp. For that see the below video.

Or get the laser projector. 

Electrical surges

An electrical surge is pretty common in the household. It’s happening because of the up and down of the electricity in your home. So when you plug your projector in your power outlet. 

It makes a crackling sound. And while using the projector. It’s seen on your projector. As a flickering screen. Which is very irritating. For everyone.

For this, you can try a different wall outlet. In your home. For the power source. Or if there is a problem with the electricity in your home. 

You should call the electrician. To solve this issue. The last thing you can do. You can use the surge protector. To solve this issue.

Components have broken

In the projector, there is various glass projection part used in the projector. Which completes the projection in any projector. By reflecting the light towards the final destination.

If you have ever opened the projector. It might be possible. You have accidentally touched the projector-sensitive glass projection part. And it hurts the glass parts of the projector.

To resolve it you have to change the glass projector parts. Which causes the issue. I will suggest that you should call the professional. Because you don’t want to hurt your projector.

Ground Loops

Ground loops happen. When you plug the two different devices in the two different power outlets. If you are using the projector and with a separate video source.

And that device is connected to a different power source. From the projector. Then it is a hundred percent sure. You are facing a flickering issue. Because of the ground loops. 

For that, you should connect the projector and video source device with the same power source. So you can get rid of the flickering issue. In your projector.

Frame Rate, Refresh rate 

A low frame or refresh rate also causes the screen flickering. So go to your projector frame rate setting. And check its frame rate. If it is low then. Change your projector frame rate. And increase the frame or refresh rate of your projector. It will help you to resolve the issue. 

Color Wheel

Because of the regular use of the projector. Collect the dust inside the projector. All over inside the projector. But here we will only talk about the dust on the color wheel.

When dust is collected over the color wheel. It makes the flickering on the screen. Because the color wheel is part of the projector. Which converts a white light source projector into a different primary color.

You don’t need to get into too many technical things. But you should know if your projector is a DLP projector. Then it could be the reason for your projector flickering. For that, you have to open the projector and have to clean the color wheel in the projector. 

For that, you can read this article. Or you can check out the video below. Read or see them carefully. Before you start dismantling the projector.

How do I know if my projector lamp is bad? 

There are various suspicious phenomena. You can notice if you want to check if your projector lamp is bad:-

  1. If you notice the flickering. Your projector lamp may be about to die. Be ready with the new lamp for your projector. 
  2. Turn up your projector brightness if you will notice that. Still, your image brightness does not increase. In the darkroom.
  3. If you image color has changed. From the normal day projection. 
  4. Go to your projector menu and in the info section of your projector. And check how much life is left for your projector amp.
  5. When you on the projector. And when you listen the pop sound. It’s also a sign that your projector is dead.

For the complete surety, you can use the multimeter to check the condition of your lamp. For more information check out our detailed article. Where I have explained how to test the bulb.

Why flickering while using the converter? 

If you have left your converter for a long time. And don’t use the converter. And you see that after a long time you are using the converter and it’s flickering. 

Then one thing you can try. Just plugging in the converter with the power source. Overnight can fix the flickering due to the converter.

Why does the projector flickering when connected to the laptop?

When you connect the projector with the laptop. There are various reasons. Because of that, the projector screen flickered. 

It is happening because of the driver. Your laptop driver is not updated. So update your graphics card driver. Go to your manufacturer’s website. And try the most recent driver.

While connecting the two electrical devices like projector and laptop. Also, take care of the ground loops. Make sure you have connected your projector and laptop to the same power outlet.

Why is the projector flickering with the ps4 hook-up HDMI?

If you are using the old HDMI cable or HDMI cable with loose pins. Or defective HDMI cable to connect your projector with the PS4. Then because of these reasons your projector screen is flickering. Now you can replace your old HDMI cable. with the new fast HDMI cable. Your flickering problem with the PS4. Will be resolved.

Can HDMI cause flickering?

If you are using the HDMI cable like 100 feet long in your projector set up. To connect with the video source device or another device. 

You may face the flickering because of the long HDMI cable even with the AMP. I will suggest you use the HDbaseT receiver for the long-distance with the Cat 6 cables. 

Why is the smartboard projector flickering?

It’s happening because of the resolution and the refresh rate. You have to change the resolution settings. In the computer that you have connected and the refresh rate too. Which compiles with the projector.

Or discounts all input from the projector. And let the power source be connected to the projector. And let’s see how it resolves the issue. Test the video source and cable causing the issue.

At your own risk, you can also try a factory reset. For that refer to the projector manual.

Conclusion: Projector flickring.

Projector flickering is a very frustrating and hair-pulling problem. But you don’t need to worry about that. You can follow the following steps. I have told you here. To deal with the flickering issue in your projector.

There are various reasons that screen flickering can happen in your projector. Before you make any conclusion. Which can be costly for your pocket. 

Try the various aspects on your projector. Because of that flickering can happen on your projector. And let us know what we can improve and share what you know. That is not available in this article.

See you next time…


  1. My projector has began to flicker when on ECO mod – Q&A
  2. Managing Projector Bulb Flicker
  3. Why Is My Projector Flickering? – Home Cinema Guru
  5. Articles – The projector’s image flickers or shifts
  6. flickering/lines on projector screen – General Hardware Forum
  7. [SOLVED] Epson EB-X11 projector flashes on and off – General Hardware Forum 
  8. When I plug my Windows 10 laptop into a projector, the screen blinks endlessly
  9. Is it normal to have some flickering? It’s rare but once in awhile my projector flickers when hooked up to my lap top via Hdmi.: projectors
  10. Strange flickering occurring. HDCP problem?
  11. How to Fix an Optoma HD20/HD200x Projector With a Flickering Image or Colour Wheel 
  12. Why your projector image is flickering (7 Troubleshooting steps) – DIY HomeTronics 
  13. What to do About a Flickering Projector – Gizbuyer Guide
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