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mrbofus Author

Level 2

257 points

iMac keeps crashing after Catalina upgrade

I have a 2019 iMac (Core i9, 64GB of RAM, Radeon Pro Vega 48, 2TB SSD) that I upgraded to Catalina. I thought everything was working fine until I stepped away from my computer for about half an hour and came back to the log in screen; upon logging in, it said my computer had restarted. Submitted the crash report to Apple. I thought it was a glitch. Kept working, then later on, same thing happened. Stepped away, and came back to the same thing. Submitted the crash report to Apple again. Then it happened again. And again. And again. Today, same thing; computer keeps crashing, over and over and over.

I've changed nothing in terms of hardware or software between yesterday and today (or since I set up this iMac a few months ago), except for upgrading to Catalina. Under Mojave, there were no issues.

If anyone has any idea how to resolve this, that would be greatly appreciated!

Below is one of the many, many crash reports, but they all look similar in terms of it seeming to be related to com.apple.WindowServer:

Crash log

iMac Line (2012 and Later)

Posted on Oct 8, 2019 5:53 PM

Similar questions

1,351 replies

Jan 6, 2020 5:40 AM in response to GW1921

You can use Bootcamp on the Mac to download the necessary drivers. That's all you need Bootcamp for. The actual installation can be done manually. After all, a modern Mac is just a PC . . .

Jan 7, 2020 8:13 PM in response to mrbofus

Basically macOS Catalina Version 10.15.2 is junk and the sleep for my MacBook Pro 2017 does not work with peripherals attached using thunderbolt.

Jan 8, 2020 5:50 AM in response to Community User

I believe 10.15.3 beta fixes some crashes esp the ones concerning external monitors. I highly recommend those you are on the beta program to upgrade and try for themselves.

leoroj

Level 1

4 points

Jan 8, 2020 10:17 PM in response to rm374atce

I found a line in crontab with a dummy job which spawned a lots of cron and bash processes. About twice daily my system crashed. Since I removed the the job the system has stable.

Jan 8, 2020 11:22 PM in response to HsuJay

https://www.youtube.com/watch?v=yAAHjE5U6Ow

vonlost

Level 1

26 points

Jan 9, 2020 11:39 AM in response to leoroj

If this was an Apple line, what was it?

JasonG69

Level 1

9 points

Jan 12, 2020 2:14 PM in response to JasonG69

Anyone also confirmed if 10.15.3 fixes it?

Jan 12, 2020 6:32 PM in response to JasonG69

I also have two Dell 4K monitors paired with a new iMac and I crash all the time. :-(

no beta has fixed this.

JasonG69

Level 1

9 points

Jan 13, 2020 3:18 PM in response to JasonG69

I should probably add, that the majority of crashes for me were whilst I was in the middle of something, not so much whilst unattended although that has happened a number of times too.