Note that you should make sure you find the correct website and download the driver suitable for your operating system. Then go to the official website of its manufacturer and download the graphics driver. Uninstall the graphics driver on your computer.

There are two options for you to update your driver: You need to update or reinstall the driver of your graphics adapter to fix problems of this kind. HDMI port not working issue can also result from faulty and incompatible graphics driver. Here you can try Duplicate, Extend or Second screen/Projector and see if the any of these modes can help project your computer to your monitor or TV via HDMI.

Second screen/Projector only - Only using the second monitor.

Extend - Using both monitors to display an extended desktop.

Duplicate - Displaying the same content on both monitors.

PC screen/Computer only - Only using the first monitor.

The difference between each mode is as follows: That means you need to configure how to display your computer with multiple screens.įirst, you need to press Windows logo key and P key on your keyboard at the same time. Model A1621 supports HDMI 1.4b at these resolutions and refresh rates when used with macOS Sierra 10.12 or later or iOS 12 or later:Īfter connecting your display, TV, or projector, video from your Mac or iPad Pro should appear within 10 seconds.If you are using multiple monitors, you can solve your HDMI port not working issue by configuring display setting on your computer.

Retina iMac introduced in 2017 or later.

13-inch MacBook Pro with four Thunderbolt 3 ports introduced in 2020.

15-inch MacBook Pro introduced in 2017 or later.

3840 x 2160 at 60Hz with these devices:.

It also supports HDR video in HDR10 and Dolby Vision formats when connected to a compatible playback device and display, TV, or projector.

It supports HDMI 2.0 at these resolutions and refresh rates when used with macOS Mojave 10.14.6 or later or iOS 12.4 or later.

Model A2119 is the newest model of this adapter. The model number is printed on the retail box and the side of the adapter, near the ports.

It's HDCP compliant and supports the specifications below, depending on the model of the adapter. Use the HDMI port of this adapter with a display, TV, or projector that connects using an HDMI cable.

Mac pro hdmi port not working