Around 2-3 times a day, my M1 MacBook Pro on macOS Big Sur 11.0.1crashes and restarts.
This will happen when I'm doing anything from browsing the internet to using xcode.
The screen looks like it glitches out to purple and then it just restarts automatically
MacBook Pro 13″, macOS 11.0
Maybe some success.... I had a call with Apple Tech Support. Amazingly patient. Here is my configuration that crashes:
1 USB-C port is connected to an Anker 8-in-1 usbc hub which has HDMI, 2xusbc 2xusba, sd-card, ethernet.
1 usb-c port connected to a Dell monitor via a usbc to display port cable. More on why the separate connection to external display.
His conjecture was that somehow the video processor in the hub was confusing the M1 coming out of sleep.
So I used a basic usbc hub with no video out (just usbc power in, usbc to M1, 3xusba, SD-card). I used the other usbc port on the M1 to drive the external monitor.
I have had no crashes over the last few days.
However, when I connected the HDMI out of the Anker hub to my monitor, it promptly crashed.
Suggestions:
(a) Try to use hubs that don't have video out.
(b) Use the M1's own usbc to drive external monitors.
I do realize that not all of you will have the configuration or the same crashes that I do. Apple is looking through my crash logs to determine the cause; no hub should crash an OS.
I hope you have reported the issue, using Apple’s Feedback mechanism, AMXBOX!
It was a kernel panic. Right?
So, was your’s also related to USB or Bluetooth? (As I pointed out to the Original Poster [OP], such can involve the loading of third-party drivers.)
Welcome, dvoran, to Apple Support Communities!
When you set up the M1 iMac, did you Restore from a backup from either of your MacBooks, or use Migration Assistant?
If so, you may have some incompatible software, along “for the ride”.
This reboot issue is not a normal M1 issue.
So. Either it is due to software (or hardware, if you have any add-on hardware besides what came with your iMac) incompatibilities; or you have a defective iMac.
If you are certain there are no software (or hardware) incompatibilities, then you’ll need to initiate a return before the 14-day period is over.
(I bought an M1 Mac mini, just after they came out, and have never had any problem with restarts that were not initiated by me [or due to a power failure].)
An M1 based Mac mini, or an Intel based, AMXBOX?
Neither should crash, unless there are other issues: hardware or poor kernel (system) extensions, perhaps even including drivers.
It is the new M1. I am a longtime Mac user. Same symptoms as OP and others.
M1 MacBook Pro crashes and restarts a few times a day
