Shutting down and "restarting because of a problem" during sleep

Lately my 305 GHz Quad-Core i7/16GB RAM/NVIDIA GeForce GTX 780M iMac has been regularly shutting down on its own during sleep. By the time I wake it, it's restarted on it's own with the problem report up. Any suggestions out there? Here's the report I'm receiving regularly:


panic(cpu 2 caller 0xffffff80032a1c6c): Sleep transition timed out after 180 seconds while calling power state change callbacks. Suspected bundle: com.apple.iokit.IOGraphicsFamily. Thread 0xd17cf.

Failure code:: 0x00000002 00000014


The rest of the report is below:



iMac 27", macOS 10.13

Posted on Nov 19, 2019 3:16 PM

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9 replies

Nov 19, 2019 4:27 PM in response to cam1907

It is just difficult to read the report . If you have a 27" by chance did you upgrade the RAM yourself? The problem with KP is they can be caused by hardware or software and a VERY frequent offender is 3rd party RAM. If you did upgrade the RAM, and it is anything but crucial.com or macsales.com RAM that is where I'd start.


Otherwise it could be a failing HD or something like an outdated driver if you using any third party apps or peripherals that require these.

Nov 20, 2019 7:52 AM in response to rkaufmann87

I do have the 3.12 TB Fusion Drive. I did as you instructed and ran First Aid 3 times from Recovery Mode and it found no errors at all. However, I do have an old Wacom Intuos 3 tablet (the only peripheral in use) and I updated the drivers to the latest available. As of now, the iMac slept all night and did NOT shut down/restart on its own, so perhaps it was that?

Nov 19, 2019 4:10 PM in response to rkaufmann87

Isn't what I posted (in the additional text dropdown) the crash report?


I'm not exactly sure where you mean.. The Console app sidebar lists a bit different than how you describe (see screenshot)..

For step 2. I go to Log Reports but don't see any Diagnostics Reporter folder, however, when I go straight to Diagnostic Reports, I'm not seeing anything that looks like a Crash Report of any kind.



Oh, and I noticed an error in the iMac specs I'm running.. It says macOS 10.13 but I'm on 10.15.1



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Shutting down and "restarting because of a problem" during sleep

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