M1 MacBook Air with external monitor crashes when sleeping

I have the same issue as those listed above.

Setup:

LG 34" 34WK95U-W on Macbook Air M1 (8Core).

I have tested with DisplayPort 1.2/1.4 8k cables with adapters to Thunderbolt3 and USB-C. I have tried using the CalDigit TS3 Plus dock, I have tried direct connect. I have now ordered a third-party DisplayPort adapter with the hope that something will resolve this INFURIATING issue.

I have raised the issue with both LG and Apple, neither of which seem to care at all. LG's response was this is an Apple issue and you can guess Apple's response.

At this stage, I am completely unable to work and contemplating purchasing the Apple XDR display so when it plays up I can at least get Apple to help me.

Shocking overall experience. It is atrocious that my previous configuration (which wasn't perfect), worked better despite utilising an external GPU through the Razer Core X to drive my monitor.

@dcinzona Have you had any crashes yet?

@philgeorge jk just hit a panic while the computer was asleep. These ****** nigh terrors. Poor M1 is having toddler sleeping troubles.

I turned on Chrome notifications for gmail and then... BOOM.

panic(cpu 1 caller 0xfffffe002014fe28): ACIO1 Recoverable Panic - assert_id=1437 - ACIO main workloop(3)

assert_id=1437

RTKit: RTKit-1558.60.1.release - Client: AppleCIOFirmware-68.60.3~37__2020-11-23-02:03:25-PST

!UUID: 3a6bf1e9-14e5-3014-850b-56f3114e91e8

Time: 0x00006cafb2bf4d65

Faulting task 3 Call Stack: 0x0000000000005d3c 0x00000000000059e2 0x000000000000848a 0x000000000001ccd8 0x000000000001c0fc 0x000000000001b8c2 0x000000000001a3e8 0x000000000000c3aa 0x00000000000217dc 0x0000000000021710 0x0000000000002d58

Mailbox (0): (0)

Inbox AKF_KIC_INBOX_CTRL = 0x00029901, AKF_KIC_MAILBOX_SET = 0x00000002

Outbox AKF_AP_OUTBOX_CTRL = 0x0002aa01, AKF_AP_MAILBOX_SET = 0x00000008

I have same kind of issues. M1 Air is connected to my Thunderbolt3 dock (Caldigit TS3 Plus). If I leave my Air connected through the night the laptop has definitely crashed during the night. I am usually greeted just with a black screen and a mouse cursor (cursor moves if I try it with the trackpad.

I have to force power it off with power/touchID button and turn it back on and then I login I get the notification that my computer has had a crash. The culprit seems to vary, sometimes its powerd or cupsd or something else.

I also tried this with the 11.2 RC that was released few days ago and the same problem persists. Yesterday I reinstalled my Air from scratch but it didn't help at all.

I'm getting crashes as well - both when the monitor goes to sleep and when I'm using it. Details:

Setup = MacBook Air M1, LG 34WN80C-B

• I started with the monitor connected via a Plugable TBT3-UDV using DisplayPort and a wireless mouse and keyboard.
• I then tried using HDMI to the Plugable (with a DisplayPort adapter) - still got crashes.
• I then took the Plugable out of loop and connected directly to the LG via USB-C - still crashed.
• Next I turned off Bluetooth and used the Macbook keyboard - still crashed.
• So know I'm down to just the Macbook with a wireless mouse.

Thanks for the idea. I've been on the phone with Apple for endless hours and they said that it may be several programs (clean my mac, one drive, and team viewer) that have caused this. They were all deleted and still the same issue. I also have a dell external monitor hooked through a Caldigit-- then to my macbook m1. Almost every evening between 11:30 pm and 7 am it crashes. And this is only once per day or once every other day. Now I was told that I have to erase my whole macbook and start over-- and not migrate programs. I'm thinking that it is a charging or monitor issue as well. This evening, I'm going to charge the old-fashioned way and will keep everyone posted!!

And for what it's worth, you CAN have independent modes set for each port :)

Set the monitor so that the TB port is set to 1.2 and the DP port is set to 1.4

Confirmed it by switching inputs multiple times and checking the refresh rates on all machines + monitor settings. So, now to test against sleep mode overnight.

Fingers crossed!

also having this crashing issue. m1 macbook air to apples overpriced thunderbolt cable to a caldigit ts3+. from there it’s display port to a samsung crg9.

sometimes when i wake it i’m greeted with a login screen, sometimes i wake it and it’s just a black screen, but it’s kinda working because my apple watch unlocks it, just no display. sometimes i’m greeted with a crash report. most of the time i have to unplug my thunderbolt cable from my macbook and then plug it back in. then it works.

I doubt the cause of the crashes has something to do with a bad logic board or Touch ID. I received 2 new M1 Macbook Airs. All 3 of them have this same issue and other people I know with that Macbook also have that issue.

So many months and updates later still no fix for such a serious problem (Macbooks crashing after sleep for no reason because they are connected to an Apple branded monitor...)

Who shares my opinion that this is totally unacceptable?

The more we talk about this, the more other victims will find this thread on google, click on the button "I have this question too", add a comment and the more likely it will be resolved.

Although it's a slightly different issue, Apple has acknowledged that M1 Macs are having difficulties with ultrawide displays:

https://support.apple.com/en-us/HT212027

[Edited by Moderator]

It would be a setting on your monitor. For my LG 38 inch, it’s under general settings

The new MacOs 11.2.1 seems to fixed some external display issues for the M1 Mac Mini. Any ideas if this new patch fixed the issue for our M1 Macbook Air?

I keep getting the same error too. It happens every time my MacBook Pro M1 sleeps while connected to my external LG 38WN95C monitor. "Your computer was restarted because of a problem."

panic(cpu 2 caller 0xfffffe00242b7e28): ACIO0 Recoverable Panic -  assert_id=1437 - ACIO main workloop(3)
 assert_id=1437
RTKit: RTKit-1558.60.1.release - Client: AppleCIOFirmware-68.60.3~37__2020-11-23-02:03:25-PST

Same issue here with my M1 MBP. I had no problem with my old Dell 27 inch screen (10 years old) but since yesterday I use a LG38WN95C and the machine crashes every time! The screen is connected to a CalDigit TS3+ dock (as the old was).

I happen to have the same issue with Dell U2715H. When the external monitor goes to sleep it causes computer to crash and boot itself quite often but not always. I'm using M1 Air with 8/8 cores and 16 GB ram.

I'm having the same issue with my M1 MacBook Pro and my LG 38WN95C external monitor. Every time the system goes to sleep my computer restarts and I get a panic error report like globaljetset below.

I hope there's a fix for this soon.