After Sonoma 14.4 update USB hub not working on MacBook

I have my MacBook (MacBook Pro 16 M2 Pro) connected to my monitor (Gigabyte M34WQ 34 Inch IPS Ultrawide WQHD (3440 x 1440)) via a thunderbolt 3 cable.

I have my keyboard and mouse connected to the USB ports in my monitor.

After updating, my keyboard and mouse are no longer being detected on my MacBook.

Before updating, it was working fine.

I can't find anything online about this issue

Can anyone help?

thanks

[Re-Titled by Moderator]

MacBook Pro 16″, macOS 14.4

Posted on Mar 8, 2024 5:39 AM

Best reply

LucaPascarella

Level 1

11 points

Posted on Mar 10, 2024 12:06 AM

I have the same issue with my MacBook Pro M2 Max 64GB RAM and monitor Dell U3219Q; none of the USB peripherals connected to the Monitor's USB hub work.

On the contrary, all peripherals work fine when I attach a Windows computer to the Dell Monitor. In addition, I check every USB peripheral by attaching them directly to the Mac, and of course, they are working.

I rebooted the Mac and detached the power plug from the Monitor, trying any configurations or sequences of rebooting as possible. Nothing is working since the update to Sonoma 14.4

Please, Apple, jump in and fix this issue soon.

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104 replies

WKOztotl

Level 1

15 points

May 10, 2024 9:29 AM in response to snowwwwwyx

How are you powering the MacBook? Are you using MagSafe or connecting a USB C cable to the power supply and pass through the hub? I posted this earlier:

"I had a similar issue with the latest Sonoma update 14.4.1. I was using “pass through power” via a USB C hub that had my HDMI, 1 x 4TB SSD, 1 x 5TB spinning disk & supplying power to a USB C Port for syncing iPads. They all failed to work once the update was applied. A support call to Apple found that “Electron paramagnetic resonance“ was the blame. The latest patch will not let you use pass through power is the output of the hub is “questioned” by the OS. I went back to using the Mag Safe power adapter and the hubs now work. I also found out that Apple support was notified ~March 27th 2024 of this restriction."