Mac Studio Kernel Panics every time the display goes to sleep

Hello Everybody!

I have recently bought a Mac Studio M2 (MQH73SM/A, 512GB/32GB).

I am using it with a Dough Spectrum One monitor (Link), attached with a HDMI cable.

Every time the Mac turns off the display, it panics and restarts. Log attached below.

I saw this post, where someone commented with a very similar panic message.

I am wondering if this could be caused by the display itself, or if this points to an issue with the Mac Studio. Any expert feedback much appreciated!

Also:

I know that this monitor company has a bad reputation, I only learned about that after I already purchased the monitor.

Kernel Panic Log

Mac Studio (2022)

Posted on Apr 8, 2024 7:09 AM

Top-ranking reply

benemacintosh Author

Level 1

14 points

Posted on Apr 12, 2024 12:46 AM

Meanwhile, I have switched over to using DP over USB-C and connecting the Mac to the monitor with a C to C cable. The panics have stopped (48h stable so far, while there was at least one panic in the morning before).

In other news, a Mac mini (MNH73SM/A, 16GB, 512GB) bought at the same time as this Mac studio connected to a completely different make of monitor (Acer Nitro XV275K P3 27") using a HDMI cable has started exhibiting the same panic behaviour.

If I remember correctly, at least the Acer monitor also has a DDC/CI feature that can be toggled in the Menu. I will check it out next time I'm on site. Good call though!

Could it be that the monitors auto-off feature is clashing with MacOS trying to control it?

As in, MacOS turns off the display output, X minutes later the monitor turns off due to inactivity, and later still MacOS goes to sleep and in turn tries to turn off the monitor using DDC, which does not respond correctly as it is already off.

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26 replies

getstew

Level 1

16 points

Jun 29, 2024 9:11 PM in response to benemacintosh

I also have this issue with an M2 Mini and a Dell display. Not sure if it is Dells display specifically, but after going going through weeks of testing with a senior representative, Apple acknowledged that there is a bug.

She wouldn't get more specific than that. She did say they hope to have it fixed in the next update. I hope so!

den.thed

Level 10

90,904 points

Apr 8, 2024 1:00 PM in response to benemacintosh

benemacintosh wrote:

Thank you, will try!

You're welcome.

So you don't think a hardware fault / incompatibility is even likely?

No, because the same thing happens to a large number of newer Mac mini's and iMac's running the latest macOS versions. The hard part, is putting together which of other active services are involved in causing the problem. Which brings us to the Prevent automatic sleep work-around.

Apr 8, 2024 9:18 AM in response to benemacintosh

Your panic report cites MacOS told the display to shut down, and MacOS did not hear back in a timely way.

use den.thed's work-around shown above.

Apr 10, 2024 1:23 AM in response to daetchief

After 96 hours (+/-) of stable operations with and without the OWC 14 Port Dock attached - I changed the Energy setting to allow the monitors to sleep but not a complete dormancy of the Mac Studio. The panics again occurred.

I've removed the HDMI cable feeding the Dell 27" monitor and am again letting the Studio remain working/sleeping/waking to see what happens.

den.thed

Level 10

90,904 points

Apr 8, 2024 9:26 AM in response to benemacintosh

In addition, sending Feedback to Apple could help.

Feedback - Mac Studio - Apple

Feedback - macOS - Apple

den.thed

Level 10

90,904 points

May 4, 2024 9:01 AM in response to Nedelpedel

The way to get your massage to Apple, is by using Feedback.

Feedback - Mac Studio - Apple

Feedback - macOS - Apple

Apr 8, 2024 11:40 AM in response to Grant Bennet-Alder

Thank you. I am gonna try that, and also switching over to a USB C cable instead of HDMI.

Do you think this indicates a monitor issue? If this was caused by a weird HDMI implementation of or a fault with the monitor, I would prefer to return it as long as I still can. On the other hand, den.thed's answer seemed to indicate a known issue with macOS.

Apr 8, 2024 11:35 AM in response to den.thed

Thank you, will try!

So you don't think a hardware fault / incompatibility is even likely?

den.thed

Level 10

90,904 points

May 6, 2024 8:02 AM in response to Nedelpedel

You're welcome. Good work finding a working solution.

waabc123

Level 1

8 points

Aug 25, 2024 6:28 PM in response to den.thed

this solved it for me. thank you.

den.thed

Level 10

90,904 points

Aug 25, 2024 8:34 PM in response to waabc123

You're welcome.

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Mac Studio Kernel Panics every time the display goes to sleep