Apple Studio Display disconnects from MacBook Pro every few minutes.

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Level 1

13 points

Apple Studio Display disconnects from MacBook Pro every few minutes.

I have an Apple Studio Display running latest firmware (15.5 Build 19F77) and a MacBook Pro (16

M1Max) running 12.4

The display keeps disconnecting and reconnecting a second or so later. This happens every few minutes. Usually any USB devices connected to the display disconnect permanently until I physically reconnect them. FYI, I am using the Thunderbolt cable that shipped with the display.

However, when I connect a charger to the MacBook Pro, it seems to work fine. No disconnects at all. The display is supposed to charge the MacBook Pro so I shouldn't need to connect it to a charger. Has anyone found a solution to this problem?

Thanks.

Posted on Jun 9, 2022 6:21 PM

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Answer 1

Jun 9, 2022 10:27 PM in response to hcsitas

Same problem here connected to an M1 MBP.

I think that disconnecting from the Mac and then unplugging the display from power for a few seconds to allow it to reboot helps but the issue will return.

It could be a bug in the recent firmware release because this didn’t happen for me early on.

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Answer 2

hcsitas

Level 6

12,686 points

Jun 10, 2022 5:10 AM in response to hayesk

Numerous unrelated issues with Sleep enabled which disabling frequently fixes. Not a universal solution but a good starting point for troubleshooting.

In your case, unfortunately not, possibly a TB port/power supply slowly gone bad on the MBP. I’d schedule bring-in repair as a first step,

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Answer 3

hayesk Author

Level 1

13 points

Jul 1, 2022 12:50 PM in response to hcsitas

I ended up taking it into the Genius Bar, and sure enough, replacing the cable fixed the issue. And yes, they did replace it for free.

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Answer 4

hcsitas

Level 6

12,686 points

Jun 9, 2022 8:41 PM in response to hayesk

Try these settings and see if it helps

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Answer 5

Jun 10, 2022 4:45 AM in response to hcsitas

Here you go

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Answer 6

hcsitas

Level 6

12,686 points

Jun 10, 2022 2:27 AM in response to Ryan Roberts

Snapshot of your Energy Saver Preferences?

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Answer 7

hayesk Author

Level 1

13 points

Jun 10, 2022 4:51 AM in response to hcsitas

I've seen you ask for a screenshot in a few places. Can you elaborate on what setting you believe is the culprit? FYI, I tried with Ryan's changes above. I still see the issue.

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Answer 8

hcsitas

Level 6

12,686 points

Jun 10, 2022 5:04 AM in response to Ryan Roberts

Check “Prevent” and optionally reduce the display off time to something more reasonable, say 1 hour. Might fix/improve, do update.

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Answer 9

hayesk Author

Level 1

13 points

Jun 10, 2022 5:20 AM in response to hcsitas

Right now, I'm trying a different TB3 cable. So far so good after half an hour (problem usually shows up within ten minutes. If this works out, looks like I'll just need a cable replacement.

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