Eltima IBC uses cookies to personalize your experience on our website. By continuing to use this site, you agree to our cookie policy. Click here to learn more.

HDMI not Working on Mac - We Have the Solution for You

JustStream logo
Top choice
JustStream 4.5 Rank based on 23+ users, Reviews(5)
Apr 26, 2021

In the age of wireless connectivity, we see everything moving in that direction. From our phones to wireless charging, wireless earbuds, gaming, and so on. So how come we’re still stuck in the past - depending on a wire to enjoy your videos and movies on the big screen? Using an external display has become the best way to enjoy your favorite content at home. But when HDMI cable not working Mac issues come up, it’s never a fun experience. We’ll show you how you can enjoy your at-home movie experience from Mac to TV - without the need for tangled and unreliable cables and wires - using JustStream.

JustStream - for when HDMI not Working Mac
Issues Appear

JustStream logo
Requirements: OS X 10.12+. 38.5MB of free space. Version 2.1(390). (4 May, 2021). 4.5 Reviews(5)
Category: MultimediaApplication

JustStream isn’t just any mirroring app. It’s an advanced replacement for any other alternatives you may have used in the past. It’s a complete solution for mirroring and streaming your content to your Smart TV. It does this by connecting wirelessly through your local network. And all it takes is a few simple setup steps to get you up and running in no time.

How to mirror Mac to TV

Mirroring Mac to TV, Chromecast, DLNA devices.

Download JustStream from the Mac App Store.
Open JustSteam and click the icon in the menu bar to see a list of monitors connected to your Mac.

Click the AirPlay button at the bottom of the window to choose from the list of devices you want to stream to.

 how to mirror Mac to TV

To start streaming, click on “Start streaming” at the top of the window. Or you can double-click the screen or the three dots beside the device name.

 mirroring Mac to TV

To stop mirroring, hit the “Stop streaming” button.

Note: By default, the mirroring is muted. But you can unmute it by following these steps.

See what may be stopping your HDMI from working

Double-check Connections

If HDMI not showing up on TV Mac, there may be an issue with your connection. Make sure your HDMI is connected and secure with your Mac.

  1. Turn off the device your HDMI is connected to and keep it connected to your Mac.
  2. Disconnect the HDMI cable from your Mac.
  3. Wait a few seconds, then plug it back into your Mac.
  4. Turn the HDMI device on.

This should solve your problem with HDMI not working Mac.

HDMI Cable Connect

If it still doesn’t work, maybe your HDMI cable isn’t compatible or is damaged. Apple products tend to work the best with other Apple Certified cables, so your best bet would be to buy an Apple HDMI cable.

Detect Display Option

Alternatively, there is another solution you could try if your HDMI cable not working Mac continues to have issues:

  1. Go to System Preferences on your Mac.
  2. Choose Displays.
  3. Hold Alt (Option) key and click on Detect Displays.

Reboot your Mac

If that doesn’t work, then try restarting your Mac. That can be a simple, yet a fail-safe way to reboot the system and get things to start working again.

Re-label Input Source or Factory Reset TV

Commonly found with Samsung TVs, the issue can be fixed by either relabeling your input source to the one used by your Mac or resetting your factory settings on your TV.

And there you have it. We’re sure that one of these methods should be enough to get you up and running if you have troubles with Mac not connecting to TV HDMI.


By far the easiest way to do that is by using an app like JustStream. What’s great about this app is that you don’t need any cables or wires - everything is done wirelessly. And there’s no need for additional downloads or hardware.

JustStream makes connecting wirelessly to your TV a breeze and you can mirror and stream your favorite content from your Mac to your TV.

There are several reasons why your Mac may not be detecting displays.

Try going through the article where we help solve this issue for you.

We’ve laid out a few solutions you could try if your HDMI isn’t connecting to your Mac. We’re sure at least one of them should solve your problems.
Requirements: OS X 10.12+ , 38.5MB size
Version 2.1(390) (4 May, 2021) Release notes
Category: MultimediaApplication