Sonoma causing mirroring to freeze

I meant that if you had a different TV or HDMI monitor, you could try to see if the same happened.

Another to try, if possible, is a different HDMI cable.

What is your mac model? Does it have a direct HDMI port (like a recent MBP or Mini), or do you use some adapter from USB-C to HDMI, or an external dock with several ports including HDMI?

There could also be some software conflict. Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

Just FYI— this is one of a HOST of kernel panic-inducing core service bugs that Apple seemed to have no compunction pushing out to Public Release. In this case specifically, it is a very clear problem with the way macOS 14 is running the WindowServer process on M1/M2 Macs. This one process seems to be the primary service that is panicking out for HDMI connections via C-hubs, any use or in some cases simply launch of VLC, waking from sleep, screensaver issues, etc. I’ve had to hunt all over to aggregate the different posts among forums all of we affected users are threading on between here StackX, Reddit, and the obscure Apple junkie forums— but as of ten minutes ago, per a reliable poster, Apple is ostensibly “very aware” of the problems per standard non-acknowledgment acknowledgment, which is their historical modus operandi for saving face. ”Don’t address it until people start making enough noise to impact the stock value” is obviously the philosophy out of Cupertino. A forum user I trust implicitly finally got clarity early today and has indicated that the issues Apple Support has been ostensibly slammed with will require pushing out a supplemental update (per high-level Apple Support after the specialist had to escalate) and as far as when that will happen… you already know it’s TBA.

I had this same issue and was able to solve it by disabling Automatic Brightness Adjustment. (Credit to this reddit comment for the suggestion.)

See: If screen mirroring or streaming isn't working on your AirPlay-compatible device - for troubleshooting steps you can try.

• Close the app you’re using and restart the Mac and test again.
• Sometimes the Mac works better if connected to the same wifi as the tv. Or if it is already, I would reboot the wifi.

Etrecheck is perfectly safe. It does not modify your system in any way.

It is a diagnostic program by etresoft, a frequent contributor and respected member of this community.

It produces a report so that others here can know enough about the software and hardware setup.

It is free, or paid with additional options.

I upgraded my M1 Pro today but encountered the same issue. After several hours, I managed to switch from mirror mode to extend mode, which stopped the laptop from freezing. I also tried both HDMI and USBC but same problem. However, I need the mirror mode, and it's perplexing that this issue, which has been affecting users for months, still lacks a resolution. 😲

Same thing happens for me, oddly enough it doesn’t freeze when I extend the display

I am getting this problem with Safari, Quicktime Chrome and Zoom. Connecting an iPad (12.9" 4th gen iOS 17.1.1) to MacBook Pro (M3 Max 2023 Sonoma 14.1.1) via WiFi. Screen on iPad freezes after a few seconds. Mac is unaffected: I can move the cursor back to the Mac screen and cancel screen mirroring. Bug in Sonoma I presume...

Are you mirroring using Airplay, or connecting with HDMI to your TV?

Did you try with different displays or TV?

However, it is only a temp solution. Sometimes system freezes.

Why this is the issue in the first place?? I have M1 MacBook Pro M1 MAX Processor, 64GB RAM. Even with a 4K Sony TV MacBook reverts to ProMotion instead of 50/60Hz and then everything freezes. If I disconnect the external monitor, in about 45 seconds I see the login screen.

I make presentations only by Main/Extended display method. I am not able to do demos using cursor movement, which requires mirroring.

Hello Apple? Anybody there to solve this??

If it's a "passive" adapter with just USB-C on one end and HDMI on the other, then it would not need any additional software, but there are some docks with multiple ports that require "DisplayLink" software for attaching displays.

I will have a look at the Etrecheck report when you have the chance to post it.

This looks more like a problem with Chrome than with macOS. I hope you get it resolved.

Chrome is a very poor citizen of the mac ecosystem, and lives to syphon user data, anyway. I never install it on any mac that I use.