Macbook Pro crashes when connected to external display with HDMI

The app 4K Videodownloader is known to cause issues.

Never heards of it and I don't use it and theres still an issue.

Absolutely love that there has been zero input from Apple support on this. Wait, no I don't. Please Geniuses... help.

I've "reported" this crash to Apple dozens of times....

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Your computer was restarted because of a problem.

Problem Details and System Configuration:

SOCD report detected: (iBoot panic)

How are you hooking up via HDMI. Does your Mac have built-in HDMI, or are you using some form of hub that supports HDMI?

If a hub, is it powered by the AC adapter for the Mac?

If no hub, is the lid of the Mac open, that you can try to see if you can get the image back up on the Mac?

Have you tried hooking up the Mac to another display via HDMI to see if the display itself is the problem, or the HDMI cable is the problem?

If you are having trouble with a Bluetooth mouse, it could be time to change the battery on that mouse. The computer may be registering fluctuations in the availability of the mouse and not knowing what to do about it.

I tried to connect through USB-C on a brand new Apple Studio Display and happened the same bug.

I looked into the crash reports and they indicate that the WindowServer process crashed due to being blocked by IOFence. IOFence, as far as I know, is a mechanism used to synchronize access to resources between the CPU and GPU. In both reports, the WindowServer process, which manages the graphical interface on macOS, encountered a situation where it was waiting for GPU resources that were being held by another process. This could be related to a bug in the GPU driver or an issue with resource management between the CPU and GPU.

The local technical assistance changed the logic board but it still

did not solved the problem.

I’m waiting for their response to that. It’s been such a burden to work with videos like this.

I experience smae issue since autumn 2023. Very frustrating. At first I thought its related to bluetooth-connected devices. But after turning off bluetooth the issue is constantly repeated.

Once connected with beamver via HDMI it crashes after certain period of time. Sound continues. System and input are unresponsive.

Apple M1 Pro 16" 2021

Sonoma Version 14.4.1 (23E224

I have the same problem with my Macbook Pro 2021 M1 Max when connected to external displays or projectors via HDMI. Tried various different projectors and HDMI cables, turned off bluetooth and other apps, the problem still exists and is incredibly annoying. This is really unacceptable for a 4000 dollar laptop, Apple please fix this ASAP.

I was griping about this 6 months ago and after I bad mouthed Apple here I started getting calls from some Apple tech rep trying to get me to duplicate the problem. Murphy was onboard and I could never duplicate it when on the phone. At the time I was not clear that it was an HDMI issue. I have not been using HDMI for about 5 months, but I started again after getting a new projector. Right away as soon as I send the audio signal to the projector the audio starts reverbing and then the screen freezes just about every time, very reliably. Apparently Apple knows this is a major issue but apparently they are unable to fix it.

You can try using a different app (not Quicktime or VLC). I have yet to experiment with this.

On reddit most people say that if you turn off mirroring it fixes the problem.

https://www.reddit.com/r/mac/comments/166xzw7/mac_freezes_on_hdmi/

I am having this same issue. It seems to be tied to the OS and therefore a solution seems at least possible. Failing to provide any working solution is grounds for a recall. Has any progress on this or did Apple sell hundreds of thousands of machines that cannot, and will not ever, be able to display on external monitors?

I have exactly the same problem. I have a 2021 MacBook Pro M1 (Sonoma 14.2.1) . When I plug my computer into HDMI, it freezes after some time and I have to hard reboot. The system usually crashes when I move the mouse (Bluetooth Logitech Mouse) when playing a QT-Movie but sometimes it just crashes without mouse movement. Because of this I can't use my MacBook Pro for professional presentations. This is not up to the Apple standards I'm used to for the last 20 years...

I thought it was a software issue but even after all the system updates the problem keeps persisting. I'm thinking that it's a hardware problem but it seems that's affecting a lot of users...

Please resolve this Apple!

Adding my voice to this. Same exact problem. I have a 2021 MacBook Pro M1 Max running macOS 14.4.1. It's embarrassing when your $5,000 device freezes in a conference room full of stakeholders.

I also use a Studio Display via a Thunderbolt 4 dock and have no issues hot-plugging into it.

I've experienced the same crashes when connected to external displays on my M1 MBP 14, using both USB-C and HDMI (HDMI is even flakier). I've found that if I unplug the cable, it unfreezes, then I can plug back in and everything is fine. That is, until a few minutes later when it freezes again. Rinse and repeat.

I have the exact same issue with my MacBook M1 MAX. I bought it refurbished off of eBay 2 weeks ago. When I turned off mirroring it stopped. I am still a bit worried that my 2k (originally 4k) machine was crashing like this.

I could still return it in the next week as per their policy. Should I? Help, please! Any input is greatly appreciated.