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<-- Early 2020 Intel MacBook Air i5 owner complains of a shrieking fan, excessive heat, and poor battery life when playing 1440 or 2160 HD YouTube videos. SAD!
 
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It happens the very moment the video leaves the blurred area behind the menu bar when the last horizontal line of the video disappears.

Scrolling in the comments has nothing to do with it. :)
So possibly the system unmaps the texture that the video is rendering into, and on next frame it's writing to nothing and triggers an unexpected interrupt.
 
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Can you please let us know the steps so we can try to reproduce it?
I was watching the straight pool video in post #17 of this thread:

Its a youtube video, but I was watching it inline in the forum, rather than on the youtube site. I had it on full screen. I had a kernel panic a few minutes in. Upon restart, I submitted the panic report to apple. Then I opened the video on the youtube site, watched the whole thing, and no issues. I doubt its reproducible. But crashes on OS X are so rare, I might have had 5 or 6 in 20 years. I think its the same thing going on with the Pro machines. I believe I had one a few days before as well, but can't remember for sure.
 
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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 area 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)
For me, this consistently causes the crash exactly as you stated, right when the bottom of the video passes "under" the semi-transparent Safari toolbar. HOWEVER, this consistency occurs only when I'm in separate tab mode. When I switch to compact mode, it does not crash most of the time. Can you try it with yours in compact mode? Just curious.
 
hi all - 1st day with my new MacBook Pro 16 m1 m1pro 16/32. No crashing but good to see that I'm not the only one that noticed a "pause" or a hesitation with this computer.
 
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 area 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)

I hope this all is not a “feature” related to “mindless scrolling” that Tim Cook seems to be concerned about.


*Will follow up this crash situation closely and how things change with the next Monterey software update.
 
thank you all beta buyers!

can't believe Apple didnt even try an HDR video ?
 
Hi All,

I have read this thread with interest, as a new M1 Pro owner, of course I was worried. I haven’t experienced this issue because it’s not the way I view content, that being said their is clearly an issue.

I am sure that apple are fully aware of this and will be working on a solution. It may be worth reporting the matter to apple via the feedback tool so that they can collect as much data as possible, this is especially important for those that have had a system fall over, as the log files will detail what happened.
 
Can we blame the notch?

Apple: We are desperate for a new MacOS Monterey software update.

Please fix this issue and the 120hz in safari. The ProMotion in Safari isn’t working. Why is it not being offered in Safari?
another example of the benefits of a true symbiosis of hardware and software
 
At least they have something to complain about, I walked into bestbuy last night to see tons of Macbooks sitting on the shelves meanwhile mine is still sitting in Korea.. Maybe you guys should do a story on how they prioritize Corporate account holders vs "pre-orders" from actual customers. In fact what does "pre-order" even mean anymore since BestBuy has it the day of release, while we are sitting around for weeks.
 
For me, this consistently causes the crash exactly as you stated, right when the bottom of the video passes "under" the semi-transparent Safari toolbar. HOWEVER, this consistency occurs only when I'm in separate tab mode. When I switch to compact mode, it does not crash most of the time. Can you try it with yours in compact mode? Just curious.
Thanks for testing Safari with a different tab layout. And yes, it does crash for me with both layouts.
 
Tried to replicate too, and couldn't. As for the machine stuttering, I won't call it that. The scrolling seems to pause when you reach the end of the current comments list, while more comments are loaded.
Did you experience any abnormalities when moving the video to the top just outside the semi-translucent menu bar?

The comment section is not the culprit. :)
 
I felt like I was missing out too, so just tried to replicate the bug on my Monterey intel 16” MBP. Even though my display is only 60hz (like every other M1 MBP in safari it seems), hard as I might try I just couldn’t. At least my whole house is warm now ? Guess it just works.
Thanks for pointing that out -- in System Preferences > Displays the Refresh Rate must be set to "ProMotion" in order to reproduce the crash. I will update my posts.
 
YEs, that is worthwhile trying and since I posted earlier I've also replicated the problem in SAFE MODE, but a Revive/Restore to replace everything directly is a good idea and I'll report back after trying. Thx for the input :)
Latest update, 08NOV2021.
NO CHANGE in crash behavior after Apple Configurator 2 DFU FW/OS RESTORE (did not try Revive first, went straight to full restore)... machine still crashes/kernel panics... decided to run the APPLE DIAGNOSTICSafter all of this and code ADP000, no fault found... so, I'm open to other suggestions as I really don't want to wait until Christmas to get a replacement machine if I can avoid it, but it's difficult to determine if this is a HW issue or a fixable FW/SW issue, with the variability in machine configs and the low reported problem rate, it's just not clear. Thankfully, my M1 MBA is rock solid, but this new MBP 14inch?????
 
For me, this consistently causes the crash exactly as you stated, right when the bottom of the video passes "under" the semi-transparent Safari toolbar. HOWEVER, this consistency occurs only when I'm in separate tab mode. When I switch to compact mode, it does not crash most of the time. Can you try it with yours in compact mode? Just curious.
It appears that the issue happens when scrolling in comments - is the video off-screen when this happens? If so, does it happen quickly after the video leaves the screen?
From what I have read and seen it the crash can be triggered by scrolling in the comments.

The easiest and most consistent way of triggering the crash is to slowly move the playing/pausing HDR video at the full 2160p 60fps resolution up just under Safari's semi-translucent menu bar. once its not visible anymore the MacBook Pro MAY crash.

It may also happen while scrolling in the comment, but to be honest, the mindless scrolling doesn't seem like something I would do. ;)
 
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.
Can you confirm that you have ProMotion turned on in System Preferences/Displays?

If so, please let us know your config (screen size, cpu, cpu cores, GPU cores, RAM, SSD) -- thanks!
 
Latest update, 08NOV2021.
NO CHANGE in crash behavior after Apple Configurator 2 DFU FW/OS RESTORE (did not try Revive first, went straight to full restore)... machine still crashes/kernel panics... decided to run the APPLE DIAGNOSTICSafter all of this and code ADP000, no fault found... so, I'm open to other suggestions as I really don't want to wait until Christmas to get a replacement machine if I can avoid it, but it's difficult to determine if this is a HW issue or a fixable FW/SW issue, with the variability in machine configs and the low reported problem rate, it's just not clear. Thankfully, my M1 MBA is rock solid, but this new MBP 14inch?????
This is some good feedback right here as not everyone may do a restore due to a missing second Mac.

Too bad it didn't solve the issue. It may have been a somewhat easy fix.
 
This is some good feedback right here as not everyone may do a restore due to a missing second Mac.

Too bad it didn't solve the issue. It may have been a somewhat easy fix.
chuckle chuckle, that's certainly what I was hoping for, but alas.... however on the plus side, I still have 11 days left in my 14day return window, so I'm keeping it and playing with it for the next ~6days in the hope something gets "fixed". Its a significant improvement on my M1 MBA and fun to use, but I'm not installing anything on it as I expect it's going back to Shanghai and I don't want to use an APP license on a suspect machine. Thx for your response and I'm open to more suggestions/trials....

If anyone has nothing better to do with their time.... I've attached a PDF of the latest Crash Report. This Crash Report is from today, AFTER full DFU Restore, shut down, restart, virgin clean Monterey 12.0.1, no customizations from default Power-On settings.... happy reading... :)
 

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From what I have read and seen it the crash can be triggered by scrolling in the comments.

The easiest and most consistent way of triggering the crash is to slowly move the playing/pausing HDR video at the full 2160p 60fps resolution up just under Safari's semi-translucent menu bar. once its not visible anymore the MacBook Pro MAY crash.

It may also happen while scrolling in the comment, but to be honest, the mindless scrolling doesn't seem like something I would do. ;)
Yeah, my guess is that there is a race condition in the drivers where they may not disable video rendering in time for the buffer to get reaped (since it went off-screen).

If so, that should be relatively easy to fix (compared to all the other stuff which could break in modern graphics drivers)

<- wrote some rather crappy open source graphics drivers two decades ago
 
MBP 16", M1 Pro w 16GB RAM, I'm playing HDR videos in Chrome and Safari but can't get it to crash. Can anyone share a link that's definitely a kernel killer?
Make sure to set your display to ProMotion (120 Hz), open an 8K HDR video in YouTube and set the video resolution to 2160p60 HDR while in the browser window and scroll _slowly_ upwards so the video will disappear under Safari's menu bar and then some more.

Any 8K HDR video will do. I have used the one that always pops up first for me (Peru).

edit: this video
 
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