Fix HDMI Port not working properly on Windows 10 PC

HDMI or High Definition Multimedia Interface is an audio/video interface that can be used to interconnected multiple multimedia devices. The most common use for this is when a CPU is connected to a monitor and a projector. It can also be used to connect Bluray players and laptops to televisions or monitors. The main advantage that it offers is the fact that it has a single connection to transmit both audio and video at high qualities like 4K. But if you find that after connecting devices using this port, the screen appears to be black, and there is no audio output then here are a few things you need to take a look at.

HDMI Port not working properly

HDMI Port not working properly

A variety of hardware malfunctions can cause this issue of HDMI connectivity, but the exact cause is difficult to determine. The following potential fixes will be carried out to get rid of this issue when a connection is made using a device running Windows 10:

  1. Check the Hardware physically.
  2. Use Hardware & Video Playback Troubleshooters
  3. Update, Rollback or Disable Graphics Drivers.
  4. Reset your monitor.
  5. Miscellaneous fixes.

If you tend to create a System Restore point usually, you can try to undo any modifications on your computer, by performing System Restore. It is also recommended that you carry out these tasks mentioned below in Safe Mode only.

1] Check the Hardware Physically

You can try cleaning the dust off the components like the Graphics Card of the computer. I would recommend using a small blower or rubbing the components with a soft cloth. Make sure that you do not damage any parts with moisture or cause harm to any circuits while carrying out this task. Check if it is not already damaged physically.

Make sure that you do this very carefully. Because even a slight bruise can cause your computer to stop working and may cause you financial expenses. If you are not confident, you can ask a qualified technician to do this for you.

2] Use Hardware & Video Playback Troubleshooters

Start by opening the Windows Settings app. Navigate to the following path, Update & Security > Troubleshoot.

Select the option called as Video Playback.

And then click on the button called Run the Troubleshooter.

Follow the on-screen instructions and check if your issue is fixed or not.

You may also run the Hardware Troubleshooter.

3] Update, Rollback or Disable Graphics Driver

You need to either update or rollback the driver. If you just updated any driver, and the issue started after that you need to rollback the driver. If you did not, then maybe updating the Graphics device driver to its latest version will help.

From the WinX Menu, open Device Manager. Select the driver, and open Properties with a right-click. Next switch to the Driver section. The rollback is only available if the update was recent. If that’s, not the case, click on Update Driver, and Windows will automatically check for the problems.

This error is usually caused due to drivers related to the Graphics Drivers listed under the section of Display Adapters.

4] Reset your Monitor

You can also try to reset your television or monitor using its hardware keys and check if that fixes your issues. Refer to your TV or Monitor’s guide for more details regarding that. This is so because it varies from product type to product type and manufacturer to manufacturer.

5] Miscellaneous fixes

You can also try to perform some miscellaneous fixes that can help you in getting rid of the issues that you are facing.

  1. Plug out the HDMI cable from both source and destination and plug it in again after a few minutes.
  2. Check if the cable that you are using is in a working condition.
  3. Change the source and the destination of the of the video and check if either of them is in a non-workable state. This will help you narrow it down to the fault of a particular device if it is so.
  4. Check if your settings are applied as intended in the Project my screen option by hitting the Win+P button combinations on your keyboard.

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Ayush has been a Windows enthusiast since the day he got his first PC with Windows 98SE. He is an active Windows Insider since Day 1 and is now a Windows Insider MVP. He has been testing pre-release services on his Windows 10 PC, Lumia, and Android devices.