Having the same issue. Thing is, I just purchased this refurbished 6,1 12 core, and it had an older version of Mac OS on it. So i upgraded right away. Subsequently, I have nothing to compare it against, as in, previous OS versions. Im jumping n this thread to see if anyone has further info, if not I'm returning it and getting an M1.
Another crash from wake so resetting SMC and NVRAM didn't solve it. Will disconnect all peripherals (Apple display, WD hard drive, Logitech mouse) and see what happens tonight.
I’d try it without power to display first because I fixed the issue for myself by doing that.
It doesn't help that Catalina is 'officially unsupported' on your Mac.I'm currently having the same issue on a different cMP with Catalina, so I wonder if it's just an underlying macOS thing?
It doesn't help that Catalina is 'officially unsupported' on your Mac.
sudo fsck_msdos diskXsX
The macbook came back from sleep this morning without a crash, after I disconnected the display last night (left the USB-C hub connected with WD hard drive and USB connection to the display). So it could be the display indeed, but how to fix? Disconnecting the display every night isn't really workable..
Yes. Similar issue. I can no longer wake my computer if the lid is shut for more than 60 seconds (I timed it). This triggers a kernel panic. A restart is now always required if I shut my lid. Frustrating!!!Just upgraded to Monterey. Sleep results in a crash and restart - any one else has this issue?
This was an upgrade and not a clean install. I will post the crash report later. Never had issues with sleep in the last 3 years 8 months.
Interesting workaround and thanks. I've thought about using 'amphetamine'. If 12.1 doesn't solve the problem I think I'll explore that route. Appreciate your comment.I'm now using the following workaround: in the morning activate 'amphetamine' and set it to not sleep for 12 hours. Before sleep I disconnect the external display and reconnect it in the morning. Hopefully 12.1 fixes this which will probably be released to the public next week.
It is not good practice to remove your gpu cable while the Mac is on, you could damage your gpu.I'm now using the following workaround: in the morning activate 'amphetamine' and set it to not sleep for 12 hours. Before sleep I disconnect the external display and reconnect it in the morning. Hopefully 12.1 fixes this which will probably be released to the public next week.
Sitting hopeful for a fix in 12.1 too… Apple's firmware has struggled with Sleep/USB bugs/issues for years. Some versions have been better than others (only to see regressions in future updates).Interesting workaround and thanks. I've thought about using 'amphetamine'. If 12.1 doesn't solve the problem I think I'll explore that route. Appreciate your comment.
It is not good practice to remove your gpu cable while the Mac is on, your could damage your gpu.
Edit: Looks like expectations for a fix should be kept low if Monterey 12.1 (or Catalina Security Update 2021-008) arrive next week with firmware 429.60.3.0.0 …