had this brand new march 2020 $3k
laptop for several weeks, hooked up to Thunderbolt Display and a cal digit interface. worked flawlessly, yesterday updated to 10.15.4 and now everytime it goes into deep sleep mode after a few hours it has a kernel crash restart and error sign. I tried it unplugged from everything and it still just did it as well. wtf.
this is the diagnostics report:
For me, I had recently updated to Catalina 10.15.3 because it seemed to be stable enough. It was for a while, no issues, then after the 10.15.4 update, I had Hangs, lockup, disconnects, screen disconnects. (On my CalDigit, I have 2 4K Mon, 2 DVD Drives, 2 USB Drives, Keyboard, Gigabit network). I guess I will wait until Catalina hits like 10.15.6 or just skip it. Went back to Mojave and I am back to stable again. Apple did something with the USBC/TB port in 10.15.4 that broke it for some people like us. :(
I would recommend the 44.1 firmware update at the caldigit website, it might help with the issue. For me, I am happy with Mojave for now.
My Details:
Vendor Name: CalDigit, Inc.
Device Name: TS3 Plus
Firmware Version: 35.1
Thank you everyone for the responses. Luckily I had backed up before updating to the latest Catalina and just rolled back to 10.15.3 and haven't had a single issue since. I turned off -auto-update-feature and will just wait till this is resolved hopefully down the road or until a whole new version of OS X is released eventually......
Yeah, lots of folks -- unfortunately -- are having this issue. I believe it's a bug in 10.15.4. I'm experiencing it myself with my 16" MacBook Pro + LG UltraFine 4K display.
Can you roll back to 10.15.3? Or perhaps, if you're feeling adventurous, try the 10.15.5 Public Beta? (I'm almost to the point of wanting to try the beta myself.)
It it me? I think that features such more advanced and automated power management shouldn't just be added to Catalina as a .x update. Doing this can introduce bugs to a stable system, as in this kernel panic bug. This is the same problem that Windows is having by trying to stay with "Windows 10" but added feature packs that break computers because of some new feature.
They should have just introduced this new power management to 10.16, and just work on bug fixes and security for 10.15. I hope they fix the Catalina bug soon.
Just my opinion (I am also a developer)
I have the same problem....
Brand new MacBook Pro March 2020 kernel crash after Catalina update
