Pro Display XDR ports on the back randomly stops working while connected to MacBook

This seems to be happening with the Studio Display as well, when connected to a MacBook Pro.

Devices connected to the display's USB-C ports disconnect, and reconnect upon a reboot. Very frustrating.

Were you able to replicate the issue at the store?

So-called Apple 'geniuses' aren't smart enough. I think we can do their job and narrow down the cause of the problem.

What peripherals are you connecting to the port?

Me:

• LOGITECH 4K Pro Magnetic Webcam for Pro Display XDR
• LOGITECH G915 TKL TENKEYLESS LIGHTSPEED WIRELESS 
• LOGITECH PRO WIRELESS GAMING MOUSE

My observation is that when only my webcam is attached to the ports, it doesn't malfunction. But when connecting the keyboard and mouse Logitech receivers, it malfunctions. So, I wired the keyboard and mouse using USB cables, but still malfunctions. Don't think the wireless receivers are the problem here. Possibly the data transfer from the Logitech keyboard/mouse over the Pro Display XDR is triggering some sort of circuit breaker in all the ports for all data transfer

Totally understand! I think your engagement with support would be helpful with this considering that you have two monitors that are doing the same thing. Seems that with me only having one, they are pushing it in the direction of a hardware issue with the display.

I have not taken mine in the store, they're just doing some basic troubleshooting and collecting of logs virtually.

Not sure if this will work, but if you open a case, maybe I can share your case number with the engineer that I am working with so that they can have more data to review, as well see that it's not just a one-off occurrence with my display. If you're okay with that, you can open your case and email me the case number or vice versa.

[Email Edited by Moderator]

We are having the same issues with the new studio display usb hubs as well. I can the one constant in all these comments is we all using logitech peripherals. I didnt have this issue with MX keys/MX Master 3 mouse using the unifying receiver. but when I switched to the MX Mechanical/MX Master 3s using the bolt receiver it started.

Not with a Pro Display XDR but I have the same issue with my 2021 M1 Pro Macbook. It's connected to a CalDigit USB-C Pro Dock. At very random times the USB functionality seems to stop working. The screens connected keep working as usual. I have to replug the thunderbolt cable to make it function again.

Peripherals connected:

• Logitech G915 Lightspeed
• Logitech G502 Lightspeed
• Logitech C270 Webcam
• Steelseries Dongle
• 2 Monitors through DisplayPort

I never had this issue with my Old (2017) MacBook Pro

This happened with just my Webcam attached as well. I have been having this issue since I first bought it, so don't think it's a OS/firmware issue.

cobrawayne, how does it look on your replacement display?

I'm noticing it on the bolt receiver as well as the Logitech Gaming receivers. I also notice it when using my Apple keyboard when it is wired. I keep it wired as I have multiple computers that I use with the display (both Intel and M1 based). When the USB hub on monitor stops working, the keyboard stops (and no, it doesn't automatically switch to bluetooth).

Yea just an update: It happens if I have anything connected to the monitor, Not only just the Logitech receiver, My Iphone causes the same the issue. The port still delivers power but no data also on the studio the webcam and speakers also become unstable.

What cable did you switch to? Was it a replacement sent out by Apple or a 3rd party one? Also is the issue resolved to date?

I am still having the issue and they offered to send a replacement XDR display out. However, I'm holding off on the replacement for now because not sure if those are just refurbished ones or if they are new units. Also another user posted here and said that they still had the same problem with the replacement display they received.

Anyone got any updates on this?

I got the exact the same issue. I tried on 2 Display XDR, and many different MBPs.

I am just wondering if this issue happens for Mac Mini or Mac Pro? Is it a hardware flaw on MBP?

Nice! Let me know how the replacement monitor works. I'll probably give them a call once I hear your results

Thank you for your advice, I also contacted customer service to consult.