Logitech C920 Pro no longer working on MacOS Sonoma 14.0

Logitech support is useless...but I did have this issue with my M1 mini running Sonoma 14.2.1, and fixing it was as simple as installing the LogiTune app. https://www.logitech.com/en-us/video-collaboration/software/logi-tune-software.html. Hope this helps!!

I'm currently experiencing something similar. My Logitech C920 worked fine until this week. I have it plugged into a Dell monitor, which then connects through USB-C to my laptop. It doesn't work on my M2 work laptop (Sonoma 14.4) and it doesn't work on my personal M1 laptop (also Sonoma 14.4). It works fine on my Intel iMac (13.6.3), so I know the camera is working.

It's something quite fundamental that's happened in the latest MacOS update, I think. It doesn't even see the USB device; System Report shows no cameras other than the laptop's built-in FaceTime camera.

Installing LogiTune seems to have made it work though. This wasn't required before.

I had the same issue until I plugged the camera directly into the Mac mini M2 Pro. Seems my USB hub is no longer 100% supported with the latest Sonoma update.

I just connect my C920HD Pro into a USB-A to USB-C adapter plugged into my StarTech USB-C hub which is then connected to my M2 mini Pro (Sonoma 14.2.1) and it works just fine. It also worked on my M1 mini (Big Sur) and my 2021 MBP M1 Pro (Ventura 13.6.3).

No Logitech software is needed for my camera connectivity or usage.

I use the Logitech C920HD Pro webcam with my M2 Mac mini Pro and macOS 14.1. It works with FaceTime and Photo Booth via a StarTech 5-port USB-C hub (bus powered). I use a Xaosun USB-C 3.2 Gen 2 to USB-A dongle.

However, though I have a 16-in MBP M1 Pro here, I never use it with my 32-in LG 4K display, so cannot report on clam shell mode with this webcam.

While you wait for other replies, you may want to contact Logitech Support

@VikingOSX I am having the same issue as others. Both my HP Envy 4500 and Logi C270 stopped after working I installed Sonoma 14.5 and perhaps the previous Sonoma update. I need to do a bit more switching things around. However, I looked on Amazon regarding your StarTech USB-C hub. When I found it, there were 4 models shown from around $20 to $36. Can you be any more specific on the model number or a pic perhaps? Thanks.

This worked for me. Easy.

They've been breaking my peripherals for decades. the good news is they still work with Linux.

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