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After testing 10 machines (14 and 16 inch) only a single one did not crash.

The issue has nothing to do with scrolling the comments section. It happens under these circumstances:

How to reproduce the CPU panic consistently within seconds


  1. In Safari* open any YouTube 8K HDR video.
  2. Select Settings/Quality/2160p60 HDR.
  3. Start playing the video. You may pause it.
  4. With the trackpad scroll down slowly. As soon as the video leaves Safari's blurry are behind the toolbar your MacBook Pro may crash. This is the critical part.
* This also happens in Google Chrome 95.0.4638.69 (Official Build) (arm64). (Thanks @UncleGuido)

Following your steps reproduced the crash for me, though it did not with 1440p60 HDR.

What does this mean in terms of hardware/software and fix?

Has anyone on the 12.1 beta tried these specific steps?
 
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Maybe Apple is making a political point to say a billion dollar company doesn’t have to fix all the bugs.

This is one of those Pandora’s box things if you try to answer that question.

 
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New member posting for the first time; please can I start by thanking regular posters. You helped me choose the MBP, move from Windows, and are now helping navigate the teething problems.

Using a 14" 32GB 1Tb MBP, I was unable to replicate the HDR problem, despite many attempts. I was able to crash the computer on the horrible website that has all the thumbnails, but nothing came up to send an error report. That said I have spoken to Apple about it as the memory leak is giving me a headache. They had me run in safe-mode for a couple of days which did nothing to help and I still find memory pressure regularly in amber. I just hope an update will fix this.
 
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I just got a few crashes myself on an M1 Air watching YouTube videos. I’m on 11.5.2 Big Sur. One was not even HDR it was a 10 year old YouTube video.

I wonder if something changed on YouTube’s end?
 
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Despite of any possible changes on YouTube or any other web site, Mac should not crash.
Yes, agreed. Mentioning it because it seems to affect Big Sur and M1 regular models. I saw another member in this thread with an M1 Air also crashed. So the problem is more widespread than the new machines released 2 weeks ago.
 
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Macbook Pro 16" M1 MAX 64GB - no crash or issues playing 4K HDR video on YouTube using Google Chrome or Safari...
 
After testing 10 machines (14 and 16 inch) only a single one did not crash.

The issue has nothing to do with scrolling the comments section. It happens under these circumstances:

How to reproduce the CPU panic consistently within seconds


  1. In Safari* open any YouTube 8K HDR video.
  2. Select Settings/Quality/2160p60 HDR.
  3. Start playing the video. You may pause it.
  4. With the trackpad scroll down slowly. As soon as the video leaves Safari's blurry are behind the toolbar your MacBook Pro may crash. This is the critical part.
* This also happens in Google Chrome 95.0.4638.69 (Official Build) (arm64). (Thanks @UncleGuido)

watched this one:

using above steps - ABSOLUTELY zero crashing nor anything out of the ordinary. speed scrolling, full screen, theatre mode, default modes, for the video did not crash. I don't know but you guys might have some faulty hardware if this is the case.
 
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Has anyone tried any other form of HDR content? is it ONLY YouTube? And is it only safari?
 
Posting from the USA and new to this thread, but also have the YouTube/Safari reproducible crashing problem.
MBP 14inch, M1 MAX, 32GB, 1TB, MacOS 12.0.1
Spoke to Apple Tech Support and also submitted Apple Feedback on their website - no solution offered.
No pending updates to Monterey 12.0.1 available today, 07NOV2021
Used ERASE ASSISTANT to erase User partition and have clean machine - no APPS, Extensions or anything installed by me. Used my Ethernet cable connection on TB4 port to eliminate wifi speed issue - 200MB/s cable internet.
Started Safari (default config - no changes made) straight to YouTube played 2 4K videos and "BOOM".. screen freeze for a couple of seconds, blank Screen, white Apple, progress bar, login, "your Mac crashed" dialog, I read details and Kernel Panic, Core 0 stopped.
Restarted Safari, changed TAB PREFERENCE to COMPACT, head to YouTube for my next panic attack.... sent that report to Apple as well
Restarted Safari, back to default settings, back to YouTube, changed the settings on the YouTube video from AUTO to 2160/4K... "boom"... another crash report for Apple
So, for me....
(1) Crash is reproducible on a virgin, clean reformatted SSD with the latest MacOS available 12.0.1 to the non-developer community
(2) Crash is always a kernel panic, CORE 0
(3) Crash is agnostic to the YouTube video setting I select
(4) Crash does NOT HAPPEN on my 2020 MBA M1 16GB, 1TB, Monterey 12.0.1 machine
(5) Crash is agnostic to cable/wifi internet connection method
(6) Crash is agnostic to battery/MagSafe power source

I have not tried other means to view YourTube videos, or even loaded a video onto the MBP, or tried other sites - only tried Safari/YouTube... boom/panic/send report.

HOPE this is not a HW issue as delivery for a replacement machine would be ....????, however, I will. keep this machine for one week to see if Apple has a FW/SW fix, and if not, then the machine will be returned to Apple for a refund of my $3099 - my MBA works fine, so should this new MBP !
 
Following your steps reproduced the crash for me, though it did not with 1440p60 HDR.

What does this mean in terms of hardware/software and fix?

Has anyone on the 12.1 beta tried these specific steps?
Tried very hard to follow your instructions but my MBP M1 pro 16 16 1TB played on beautifully. Pro motion is on in system preferences by the way. I begin to suspect there is some rotten software on certain MBP's.
 
Posting from the USA and new to this thread, but also have the YouTube/Safari reproducible crashing problem.
MBP 14inch, M1 MAX, 32GB, 1TB, MacOS 12.0.1
Spoke to Apple Tech Support and also submitted Apple Feedback on their website - no solution offered.
No pending updates to Monterey 12.0.1 available today, 07NOV2021
Used ERASE ASSISTANT to erase User partition and have clean machine - no APPS, Extensions or anything installed by me. Used my Ethernet cable connection on TB4 port to eliminate wifi speed issue - 200MB/s cable internet.
Started Safari (default config - no changes made) straight to YouTube played 2 4K videos and "BOOM".. screen freeze for a couple of seconds, blank Screen, white Apple, progress bar, login, "your Mac crashed" dialog, I read details and Kernel Panic, Core 0 stopped.
Restarted Safari, changed TAB PREFERENCE to COMPACT, head to YouTube for my next panic attack.... sent that report to Apple as well
Restarted Safari, back to default settings, back to YouTube, changed the settings on the YouTube video from AUTO to 2160/4K... "boom"... another crash report for Apple
So, for me....
(1) Crash is reproducible on a virgin, clean reformatted SSD with the latest MacOS available 12.0.1 to the non-developer community
(2) Crash is always a kernel panic, CORE 0
(3) Crash is agnostic to the YouTube video setting I select
(4) Crash does NOT HAPPEN on my 2020 MBA M1 16GB, 1TB, Monterey 12.0.1 machine
(5) Crash is agnostic to cable/wifi internet connection method
(6) Crash is agnostic to battery/MagSafe power source

I have not tried other means to view YourTube videos, or even loaded a video onto the MBP, or tried other sites - only tried Safari/YouTube... boom/panic/send report.

HOPE this is not a HW issue as delivery for a replacement machine would be ....????, however, I will. keep this machine for one week to see if Apple has a FW/SW fix, and if not, then the machine will be returned to Apple for a refund of my $3099 - my MBA works fine, so should this new MBP !
Should be fixed in an upcoming release of Monterey so I would wait if I were you.
 
watched this one:

using above steps - ABSOLUTELY zero crashing nor anything out of the ordinary. speed scrolling, full screen, theatre mode, default modes, for the video did not crash. I don't know but you guys might have some faulty hardware if this is the case.

YouTube creates N videos where N is the number of variants.

For example, on iOS, I only see 144p, 360p and 720p. Each one is a unique file on YouTube’s servers.

So saying it works, when 4K, or even 1080p, is not an option, is just sort of hoping people forget and move on to something else.
 
YouTube creates N videos where N is the number of variants.

For example, on iOS, I only see 144p, 360p and 720p. Each one is a unique file on YouTube’s servers.

So saying it works, when 4K, or even 1080p, is not an option, is just sort of hoping people forget and move on to something else.

It's almost as if people want this to be true for everyone. Majority don't witness this issue at all. Majority do. If the system shutdown and restarts that is a real issue that Apple must address but not a peep so it could be a pattern on specific units that were shipped out sold and bought.

I have a retail 1TB/16GB ram 10c/16c gpu MBP 16" that came with macOS 12.0 -> then updated to 12.0.1. It is a phenomenal machine with a spectacular display that has not rebooted due to this "bug". More and more reports seems that some of the hardware may be defective.

This is one example of HDR content - I've viewed about 6 so far and none exhibit any problems whatsoever and I've watched them all from beginning to end. Plugged in power and also battery power (with video optimized OFF).
 
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Cutting edge is bleeding edge. This probably will be sorted out before Apple delivers my machine :D
 
HOPE this is not a HW issue as delivery for a replacement machine would be ....????, however, I will. keep this machine for one week to see if Apple has a FW/SW fix, and if not, then the machine will be returned to Apple for a refund of my $3099 - my MBA works fine, so should this new MBP !
Can't really tell without seeing a panic summary if there's a hardware root cause, but there's always some SW fix.
 
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Tim Apple is too busy counting his millions to deal with this.
So you think having Tim Cook apply kernel patches would make the problems better?

Probably better to let the people who have spent their careers specializing in this sort of thing handle it, and he can focus on broader problems.
 
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Following your steps reproduced the crash for me, though it did not with 1440p60 HDR.

What does this mean in terms of hardware/software and fix?

Has anyone on the 12.1 beta tried these specific steps?
I hoped that it was just a Safari bug but it turned out that google chrome is also affected (see my original reply).

So it’s either a Monterey bug or a cpu issue.
 
Posting from the USA and new to this thread, but also have the YouTube/Safari reproducible crashing problem.
MBP 14inch, M1 MAX, 32GB, 1TB, MacOS 12.0.1
Spoke to Apple Tech Support and also submitted Apple Feedback on their website - no solution offered.
No pending updates to Monterey 12.0.1 available today, 07NOV2021
Used ERASE ASSISTANT to erase User partition and have clean machine - no APPS, Extensions or anything installed by me. Used my Ethernet cable connection on TB4 port to eliminate wifi speed issue - 200MB/s cable internet.
Started Safari (default config - no changes made) straight to YouTube played 2 4K videos and "BOOM".. screen freeze for a couple of seconds, blank Screen, white Apple, progress bar, login, "your Mac crashed" dialog, I read details and Kernel Panic, Core 0 stopped.
Restarted Safari, changed TAB PREFERENCE to COMPACT, head to YouTube for my next panic attack.... sent that report to Apple as well
Restarted Safari, back to default settings, back to YouTube, changed the settings on the YouTube video from AUTO to 2160/4K... "boom"... another crash report for Apple
So, for me....
(1) Crash is reproducible on a virgin, clean reformatted SSD with the latest MacOS available 12.0.1 to the non-developer community
(2) Crash is always a kernel panic, CORE 0
(3) Crash is agnostic to the YouTube video setting I select
(4) Crash does NOT HAPPEN on my 2020 MBA M1 16GB, 1TB, Monterey 12.0.1 machine
(5) Crash is agnostic to cable/wifi internet connection method
(6) Crash is agnostic to battery/MagSafe power source

I have not tried other means to view YourTube videos, or even loaded a video onto the MBP, or tried other sites - only tried Safari/YouTube... boom/panic/send report.

HOPE this is not a HW issue as delivery for a replacement machine would be ....????, however, I will. keep this machine for one week to see if Apple has a FW/SW fix, and if not, then the machine will be returned to Apple for a refund of my $3099 - my MBA works fine, so should this new MBP !
How about doing a Apple Configurator 2 (DFU) restore to factory settings by Apple Store staff? The FW/OS might need to be totally restored.

 
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New member posting for the first time; please can I start by thanking regular posters. You helped me choose the MBP, move from Windows, and are now helping navigate the teething problems.

Using a 14" 32GB 1Tb MBP, I was unable to replicate the HDR problem, despite many attempts. I was able to crash the computer on the horrible website that has all the thumbnails, but nothing came up to send an error report. That said I have spoken to Apple about it as the memory leak is giving me a headache. They had me run in safe-mode for a couple of days which did nothing to help and I still find memory pressure regularly in amber. I just hope an update will fix this.
Thanks! I can confirm that safe mode also didn’t help.

What are the specs of your machine? (size, cpu, GPU, RAM, ssd)
 
Yes, agreed. Mentioning it because it seems to affect Big Sur and M1 regular models. I saw another member in this thread with an M1 Air also crashed. So the problem is more widespread than the new machines released 2 weeks ago.
Can you please let us know the steps so we can try to reproduce it?
 
watched this one:

using above steps - ABSOLUTELY zero crashing nor anything out of the ordinary. speed scrolling, full screen, theatre mode, default modes, for the video did not crash. I don't know but you guys might have some faulty hardware if this is the case.
Thanks for reporting back. Did your machine stutter ever so slightly while moving the video out of sight?

So we have another machine NOT having issues with these specs:
”M1 Pro 16" 10c/16c 1TB model” SG
 
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