Sonoma freezes / crashes when playbacking videos in Quicktime

Still having this bug with Sonoma 14.3 on BOTH my macbook pro M1 and macbook air M1.

Screen mirroring to an external monitor seems to be the culprit. If i disable it, or just disconnect the monitor, everything works fine. Issue happens with either the HDMI output of my macbook pro M1 or using a USB-C dongle with displayport.

Apple support suggested formatting my mac, but i read people here who did it without luck. I'm quite suspicious when both macs have the same issue, with very different sessions.

I think it's just a huge bug that went under Apple's radar. I suggest everyone to contact apple support and direct them to this thread.

I have quicktime, VLC, youtube in picture in picture mode and the Playstation remote play app crashing really fast here.

Please try the following: play a video via QT and do nothing else! Then move the mouse after a few minutes.

In my case, the videos start and play without any problems, but the computer freezes the moment the mouse is moved. Strange, but that's how it is.

Unfortunately the bug is still present with Sonoma 14.2. In my case I have a Samsung 4K TV connected as a second monitor to my Mac Mini. After some time running a mp4 file with Quicktime everything freezes. As soon as I remove the connection to the TV the freezing stops. Notes: (1) the TV doesn't even need to be on: only connected. (2) The TV is connected via HDMI (no USB-C to HDMI adaptor). The first monitor (DELL 4K)is connected via USB-C to Display-port cable.

I've spent a lot of time with an Apple expert on the phone yesterday, showing how my macbook crashed everytime.

They called me back 24 hours later saying the mac os developers are on it, so hopefully it should get fixed with an update someday.

Happening for me on 14.2.1. Everything locks up when playing mp4 in QT and OS will crash out to login page if left alone for ~30 seconds or so. (no other apps running) Unplugging the HDMI monitor before the crash wakes everything back up and avoids the crash but as is, I cannot play the videos with HDMI connected.

(PS: I opened a bug report with Apple)

As far as I'm concerned, the problem only appears when I'm watching a video with QuickTime. That is to say, DIRECTLY with the app open OR in preview (space key) in the Finder.

Since I first noticed this (extremely annoying) problem, I open all my videos with VLC. Since then... the problem has gone away. Having said that, not having to use QuickTime is not a bug resolution in my opinion (and even then... I'm being kind when I say "bug". We're still talking about a complete machine crash here!!!! 😡)

Also (I share my experience), on my side, the problem ALWAYS manifests itself by the video freezing (but the sound continues), then a progressive blocking of ALL THE MAC!

It's impossible to unblock anything. Once the video is frozen, it's certain that within ~1 to 1.5 minutes, the Mac will crash completely, then reboot...

Note that my Mac was affected by the "Pink Screen of the death" when it was new! This bug has been resolved by an update to macOS (Pink Screen and Restarting on M1 MacBook … - Apple Community)

Please Apple -> Resolve this rapidly…

I have buy an expensive Hadwarve (Mac), EXCTLY, so I don't have the problems of the PC world on my Mac!!!!

The problem is as follows. It occurs when BOTH of the following conditions are met:

1) The Mac is connected to an external monitor (in HDMI), via the Apple multiport AV adapter.

2) The external display is set to "Mirror" (video recopy), in the "System settings".

I work around the bug by setting the external monitor to "Main Screen".

I've had NO system cash for ~1 month with this TEMPORARY solution!

APPLE CLEARLY NEEDS TO DO SOMETHING!

I was able to solve the problem for myself. It seems to be related to the setting for the external monitor. I used to use mirroring, but after switching to using the monitor as an external monitor, the problem has disappeared.

Now I can use the QT Player in every situation.

That's not really a suitable solution. This wasn't a problem for me before the Sonoma update, so they need to fix it. Did they say what 3rd party app? Rather than completely creating a new account on your machine.. and doing all that work, surely they'd be able to prove the 3rd party app was at fault by you simply removing it? Also, if a 3rd party app is even able to hang the entire operating system, that's still an OS problem to fix. The 3rd party app should crash cleanly, the OS will tell the user it's crashed and then the vendor can update it after they receive the crash reports.

I assume with Sonoma 14.1.2 folk are STILL getting freezing 😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭

skogskant wrote:

Apple if this is an Apple problem when can we expect an uppdate of Sonoma???

Apple is not here. This is a user forum. You can file a bug report from the feedback page.

Feedback - macOS - Apple

No success with Sonoma 14.4. Still freezes. Apple TV app on macOS freezes also...

Still happens on 14.4, in my case computer even freezes when using external monitor and watching YouTube. lol.

Sonoma from all the OS it has been the worst.

I know its not the best solution but I just downgraded my MBP M1 Max from the latest Sonoma to the Ventura 13.6.6! Mirroring works just fine again. Every other solution did not work out

Yep me too. I freshly installed Sonoma on my Macbook Air M1 and when watching simple .mp4 on Quicktime or VLC and I am connected to an external Display/TV (HDMI), it starts to freeze/extremely lag. Only solution is Force reboot. PLS FIX APPLE DEVELOPERS