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John Boydon

macrumors newbie
Original poster
Jul 21, 2020
12
1
Hello all,
I have updated Catalina to Big Sur 11.1. After that I have got several kernel panics, all of them related to:

Code:
Sleep Wake failure in EFI
Failure code:: 0x00000000 0x0000001f

With Catalina these kind of problems never happened to me.

I have a MacPro6,1 12c, 64GB, D500 with Intel SSD 660p 2TB (SSDPEKNW020T8) and a Dell U3415W (3440x1440 60Hz) connected via TB.

The monitor is shared with a laptop via its internal KVM Switch. On mac, I use ddcctl to switch to the laptop.

So far the kernel panic only happen when I am "connected" to the laptop, if I invoke sleep manually from mac, then it wake up without problems.
I suppose that when I am "connected" to the laptop, the mac goes in sleep mode with no displays attached to it. May be this is the reason why I am not able to manually replicate the kernel panic.

Can somebody help me?

regards
john
 

Dayo

macrumors 65816
Dec 21, 2018
1,398
723
I have updated Catalina to Big Sur 11.1. After that I have got several kernel panics, all of them related to:
Code:
Sleep Wake failure in EFI
Failure code:: 0x00000000 0x0000001f
What type of Mac do you have and how did you install BS?
 

Dayo

macrumors 65816
Dec 21, 2018
1,398
723
It is a supported model (I linked it above)
The Trashcan is supported indeed. Was interested given the similar issue you had with 5,1 which was assumed to be to do with the USBMap Kext.

To @John Boydon ... no idea so far why this issue. Since your machine is supported, perhaps worth opening a ticket with Apple?
 

John Boydon

macrumors newbie
Original poster
Jul 21, 2020
12
1
Hello all.
I performed a SMC reset, now the kernel panic cannot be reproduced.
Let hope that this solves the issue definitely, otherwise I will try to disable the standby (pmset -a standby 0).

Thanks to everyone!
john
 
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E__F__

macrumors newbie
Mar 27, 2021
7
1
Chicago
Just had this panic today. No external displays but had to uninstall and reinstall bootcamp last night due to a needing a clean install on windows. I'm on a MacBook Pro 16,1
 
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