Catalina constantly crashing when Sleep

My 2019 15inch MacBook Pro with Vega 20 always crash and reboot when it going to sleep. And each time It automatically change "switch the graphics card" option in powel setting to uncheck.


MacBook

Posted on Oct 11, 2019 7:36 AM

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Posted on Dec 6, 2019 2:42 AM

I was having this problem on a 15" MBP 2019 with the Pro Vega 20, then again on the 16" 2019 MBP with the 8GB Radeon I swapped it for.


Basically, your Catalina install comes with a bunch of extensions for running RAID hard drives (most users won't ever do this). Something about at least one of them is broken. I haven't worked out exactly which ones cause the problem, but they can all be safely removed if you don't use RAID HDDs.


They can be found in MacintoshHD>Library>Extensions. Make sure you're looking the right right Library folder, you want the one on in Macintosh HD, NOT the one under your username. I made a backup of them just in case, then cleared out the following .kext files:


ACS6x

ArcMSR

ATTOCelerityFC8

ATTOExpressSASHBA2

ATTOExpressSASRAID2

CalDigitHDProDrv

HighPointIOP

HighPointRR

PromiseSTEX

SoftRAID


Since I was on a very fresh install, I expect these are all the ones which come with Catalina as standard. My machine has since been waking from sleep successfully and quickly every time, even with multiple displays and USB-C devices plugged in.

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219 replies

Jan 29, 2020 7:43 AM in response to GavinFoo

The only way to solve the problem was to switch back to Mojave. it took me 3 day. But be aware of that Mojave is not able to read a Timemaschine backup made with Catalina. So you have to prepare some additional backup before delete Cataline from your mac. The good thing is

1) I‘m still happy again with Mojave

2) I got rid of more than 100 gigs of chunk.

I hope desperately that anyone of Apple is reading this blog to

1) excuse to all mac users for the mass

2) to revoke Catalina and to try it again later

Jan 30, 2020 8:03 AM in response to dbnex14

... Just adding an update to my post above, I am no fairly confident that my system hanging is caused by either Catalina (v. 10.15.2) or Google Chrome (v. 79.0.3945.130 (Official Build) (64-bit)).


I can reliably reproduce system hang by opening Google Chrome. Sometimes it freezes my Catalina already on very first Chrome tab when I navigate to a web page such as Udemy.com (this page seam to consistently lead to freeze). Other times it takes 3 or 4 tabs navigated to some web pages.


  • As already explained, I can reliably reproduce this issue if using Google Chrome version above. I have removed every single extension from Chrome, tried uninstalling and reinstalling it, nothing helped. It freezes the system and the only way out is either (a) Power button or (b) waiting for about 4 minutes until system reboots by itself.
  • I tried same using Firefox and Safari and was unable to reproduce it.


For full list of attempts to solve the issue, refer to https://discussions.apple.com/thread/251071845?answerId=252047344022&page=1

Jan 31, 2020 7:19 AM in response to Josh Ablett

Josh, if you set your mac not to sleep your not going to see the issues, but for a macbook user the battery life will be next to useless :-)


Someone in Apple needs to take a closer look at the functions that control the power management upgrade to 64 bit processing as something is not being written properly when going to sleep or not being read properly when waking up. Extensions in Chrome did not cause me an issue when I did a fresh install for 2/3 days but I had other issues with software just hanging, Photoshop, Safari, OneNote, terminal window after the fresh install.


I have got fed up with Catalina and gone back to Mojave (no issues since).


So I have to thank all of you who are persisting with Catalina updating this post with the updates from Apple and whether they all work or not. You all must have the patience of saints, god bless you.


Kind regards

Roger

Apr 6, 2020 2:39 AM in response to aurallion

Update:

The service person found that there is a corrosion on the board, that causes the system kernel panic during deep sleep. After that part is replaced/fixed, no more crash during deep sleep. So, for you who encounter the same issue here, you may suffer the same issue.


But weird thing is, I never bring my macbook pro to a humid place like beach or not even hit or splashed by water at all. But then got corrosion. I can assume this is a part of hardware defect.

May 22, 2020 10:01 AM in response to fraceman

Day 1 Updated:


My MBP16 is back to operating as if brand new (the good new). When I open the cover from sleep, it is on and logged in (via Apple Watch) before I can get the cover fully opened. Photos is running and synchronizing properly again. I downloaded about 2GB of photos from my Nikon and made some edits without any issue.


I can't quantify it, but it appears that the photo library sync is much slower than it used to be. It seems that there is some throttling going on between iCloud and the MBP-16. I used to feel the case heating up above the keyboard when it was making these transfers before, today it is remaining cool.


The Photos library on the MBP-16 is updating, but it is slow to complete compared to before.


My suspicion is that there is a data transfer issue that is going on between Catalina and the iCloud infrastructure. This would correlate with others investigations toward large file transfer issues. To address it, I believe Catalina and iCloud are getting throttled. Interestingly it seems that iOS and iPadOS are immune. Of course iOS grew from a communication centric system, where MacOS grew from processing centric system toward communication.


Here is how I got my MBP-16 working again: (Done in this order per Apple Support)

1) How to reset the SMC of your Mac

2) Reset NVRAM or PRAM on your Mac

3) How to reinstall macOS from macOS Recovery


Best of luck to you.


Jul 24, 2020 8:30 AM in response to R Harbick

For me the problem was a Time Machine drive that the mac couldn’t write on (It was throwing errors on being unable to write on the drive, when then computer was working). I got a new hard drive and since then that issue has stopped. However I am having a lot of other issues with time machine, (one night it stopped someone suddenly and I had to erase everything to start again). The computer also doesn’t recognizes an old time machine, unless I leave it in the USB port for an hour or so (I heard that is a common problem)


didn’t expect this from Apple.

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Catalina constantly crashing when Sleep

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