macOS 15.2 Is Making My Mac mini Think That The Screen Is Being Mirrored… Why?
Adding to Time Machine issues, and display issues which appear to be a design choice that Apple didn’t tell anyone about, along with “Hey Siri” Functionality On The Mac Mini Apparently Not Working comes a new issue that appeared when I installed macOS 15.2 which dropped yesterday. After the install of that update, my Mac mini which is plugged into a TV now shows this:

The purple icon on the left indicate that my screen is being shared. Further confirmed by this:

But the thing is that I am not mirroring the screen. The Mac mini is only plugged into a TV via HDMI. There are no secondary monitors in play here as confirmed by this:

Pressing “Stop Extending” doesn’t do anything. I am not running any third party software to do anything with monitors. My only thought is that the Mac mini is seeing this display as a TV, which it is, and for reasons that I do not understand is offering to extend to this TV even though it is the only display connected.
Now I initially thought it was just me. But it turns out that there’s a Reddit post that has other people with the same issue. That implies a bug unless there is evidence that says otherwise. Thus I will continue to research this and post any new findings that I come across here in the form of updates. But I wanted to put this out there in case that you had the same issue. Also, if you know what this is and why it’s happening, along with any fixes if this is a bug, I’d love to hear from you as well.
I swear, macOS Sequoia is not a good release at all. Apple may have been better off letting it bake in the oven a bit longer before releasing it to the public.
December 12, 2024 at 2:39 pm
[…] today I posted a story about my Mac mini thinking that the Screen is being mirrored when it actually wasn’t. I did a lot of research and I think I found my answer here. This is […]
January 31, 2025 at 8:31 am
[…] in mid December when macOS 15.2 hit the streets, there was something odd that I tripped over. When a Mac such as my Mac mini was plugged into a TV via HDMI, it would show the icon in the menu […]