Every time I open my macbook I get the message ( You computer restarted because of a problem )
panic(cpu 0 caller 0xffffff801d491b2c): Sleep transition timed out after 180 seconds while notifying clients about upcoming system capability changes. Suspected bundle: com.apple.iokit.IOGraphicsFamily. Thread 0x74.
I have tried a fresh install with the same problem. Any ideas?
MacBook Pro 16", macOS 10.15
Had the same problem
Status here
My GPU Panic sleep problem is still solved. I have since installed my video-rendering tools, my developer tools, all my other stuff.
My energy saving stuff is back to normal.
Having it gooing to sleep on power, on batteries
Running 10.15.4
Solution for me was
My brand new macbook pro 16 (Shipped 2. april 2020) also restarted (crashed) over nigth - actually it crashed (Kernel Panic GPU) everytime it went to sleep mode. I had nothing installed except default OSX with updates.
Solution details
I don't know if step 1-3 is necessary, but I think so.
So a macbook pro 16 that I almost returned, is now working perfectly - and I'm very happy:-)
I am having same problem.
panic(cpu 2 caller 0xffffff8003a91b2c): Sleep transition timed out after 180 seconds while notifying clients about upcoming system capability changes. Suspected bundle: com.apple.iokit.IOGraphicsFamily. Thread 0x74.
Backtracing specified thread
Backtrace (CPU 2), Frame : Return Address
0xffffff83adc33900 : 0xffffff80034471e8
0xffffffa3e865b920 : 0xffffff80033433f1
0xffffffa3e865b990 : 0xffffff8003341c2f
0xffffffa3e865b9e0 : 0xffffff80034442e9
0xffffffa3e865ba20 : 0xffffff8003443b4b
0xffffffa3e865ba50 : 0xffffff7f86f9eced
0xffffffa3e865ba80 : 0xffffff7f86fb7f75
0xffffffa3e865ba90 : 0xffffff8003a2ff59
0xffffffa3e865baf0 : 0xffffff7f875e2602
0xffffffa3e865bb30 : 0xffffff7f86fac3a6
0xffffffa3e865bbb0 : 0xffffff7f86fa78eb
0xffffffa3e865bc50 : 0xffffff8003a020cf
0xffffffa3e865bcc0 : 0xffffff8003a1a770
0xffffffa3e865bd60 : 0xffffff8003a028b9
0xffffffa3e865bdb0 : 0xffffff8003a17e1b
0xffffffa3e865be50 : 0xffffff8003a14294
0xffffffa3e865bea0 : 0xffffff8003a11d40
0xffffffa3e865bef0 : 0xffffff8003a11bd9
0xffffffa3e865bf30 : 0xffffff8003a2d43e
0xffffffa3e865bf70 : 0xffffff8003a2ca36
0xffffffa3e865bfa0 : 0xffffff80032c713e
If i just got this macbook on monday and apple support has told me to issue a return and refund if it continues, do I go through with the return or are you positive its software and will be fixed?
My main concern is that when it restarts while I am away, it gets stuck somewhere in the loading process and is burning hot by the time I get to it and that is more concerning than a small disk startup issue...
Thank you, Ill give it a try. Is this a temporary solution for a known issue ?
Thanks for the info, I guess what I a trying to figure out if this is a software or a hardware issue. My laptop is brand new ( 1 month old ) and if it is hardware issue I prefer to just return it.
It looks like it cloud be real solution. It showed also in other threads. Can you tell me if return to old settings works?
Same problem here. I will try energy saver solution but still I am not sure if it works. I want to post report but it is too long.
So did you turn on power nap?
I’ve made step 1,2 and 4,5. I restored from time machine backup so I don’t think any recovery or new install make a difference. I need my backup.
Same here. Sent my MBP 16" in for servicing and they replaced the logic board, and nothings changed. I am wondering if it's a software issue or maybe the graphics card???
It happen also on other devices not only MBP 16". It looks like soft issue related to sleep hibernation etc.
How's that going with new machine? I've read >10 threads about that and no one with replaced machine or repaired get rid of it. It looks like soft issue.
i Didn’t use Time Machine, I copied folders from a backup, and reinstalled every app
I still think that it is soft issue. You probably had updated 16" right out of the box. Even if not some users can still see problems. It is not fine of course but it is just software.
I'm glad the fixes work for you; they didn't for me, and returning was the only option.
I have had no crashes for 12 days with the original power savings options.
I have had one report in another thread, where a guy could reproduce the problem (I think he only did step 4 and 5 (disabled/enabled power nap)). He reproduced restart by forcing his MacBook Pro 16 to do a lot of work under sleeping (power napping). He forced a big resync of photo library from iCloud.
I have tried but no restart yet. Will try again tonight.
Mac Book pro 16 crashing
