In this instance, it is recommended to examine the display settings on your laptop and ensure that you use the correct setting for display instead of the incorrect one. There is an opportunity that you to make use of the settings for the wrong monitor. If you have several monitors on your computer or laptop and you encounter the HDMI port’s issue of not working. 1st Method – Configuration of Display Setting If you use one of the listed below strategies, you’ll likely be able to solve your problem. Here are some suggestions that might be useful to solve the problem that results from issues with the HDMI port that isn’t working. The result is that you can’t be able to play your favorite video game or even your favorite TV show.

When the HDMI handshake fails to work then you will notice that the HDCP security for HDMI isn’t detected by the devices that are connected.

In order to achieve this, connected devices must be fully certified or licensed to communicate with one another through a standard high-bandwidth digital content security. The whole connection is only one cable to connect audio and video. HDMI is thought to be one of the most effective methods to connect all connected devices easily.

Hdmi duplicate screen not working