No audio with C920s and Mac Mini M1

Do you have this problem? Do you have a fix?


Mac Mini M1.

macOS Monterey 12.2.1 and now 12.3.

Logitech C920s PRO HD WEBCAM.


Video is fine. But I get no audio from the webcam.


System Preferences > Sound > Input ... lists the webcam and it is selected. But when I speak the levels indicator doesn't register anything.


The same C920s works in a 2017 iMac (macOS 12.2.1), and also with a Windows 10 laptop.


Another family members webcam works in the problem Mac Mini.


So it's not the C920s. It's not the Mac Mini. It's the C920s in the Mac Mini.


On the Mac Mini I'm plugging it into one of two of the USB-B ports. I've tried both. A wired keyboard is in the other. Nothing plugged into USB-C ports. HDMI to LG monitor. Bluetooth mouse.


I've had the Mac Mini eight days now. The webcam with Mini last worked two-days ago with Zoom.


Any ideas? Apple Support tried but they don't have an answer yet either. Thanks.


Posted on Mar 19, 2022 9:28 AM

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Question marked as Top-ranking reply

Posted on Mar 24, 2022 1:10 AM

I've had the same, very strange problem with the C920S and a Mac Mini M1 under Monterey until yesterday.


After i've changed the audio frequency of the C920S to 32000Hz in Audio-Midi-Setup, everything seems to work fine.

This setting has to be done again everytime you un- and replug the webcam.



Maybe this solution also works for you.

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16 replies
Question marked as Top-ranking reply

Mar 24, 2022 1:10 AM in response to rogue.one

I've had the same, very strange problem with the C920S and a Mac Mini M1 under Monterey until yesterday.


After i've changed the audio frequency of the C920S to 32000Hz in Audio-Midi-Setup, everything seems to work fine.

This setting has to be done again everytime you un- and replug the webcam.



Maybe this solution also works for you.

Mar 20, 2022 2:51 PM in response to rogue.one

Does this mean anything to anyone ... ?

error 21:40:29.059165+0000 wifip2pd XPCSession[445] was invalidated [XPCSession.swift:54]

error 21:40:29.808032+0000 UVCAssistant Error:Unable to send device request. with reason: (null)

error 21:40:29.808100+0000 UVCAssistant UVCUSBDeviceControlInterface: 0x100003a3d [0x149e19340] Failed to get current value for control UVCDeviceExtensionUnitControl:[Extension_Unit_2_1] [0x149f158f0] error: Error Domain=IOUSBHostErrorDomain Code=-536850432 "Unable to send device request." UserInfo={NSLocalizedRecoverySuggestion=, NSLocalizedDescription=Unable to send device request., NSLocalizedFailureReason=}

error 21:40:29.808312+0000 UVCAssistant Error:Unable to send device request. with reason: (null)

error 21:40:29.808368+0000 UVCAssistant UVCUSBDeviceControlInterface: 0x100003a3d [0x149e19340] Failed to get current value for control UVCDeviceExtensionUnitControl:[Extension_Unit_2_2] [0x149e1d3a0] error: Error Domain=IOUSBHostErrorDomain Code=-536850432 "Unable to send device request." UserInfo={NSLocalizedRecoverySuggestion=, NSLocalizedDescription=Unable to send device request., NSLocalizedFailureReason=}

error 21:40:29.812637+0000 kernel 1008 duplicate reports for Sandbox: com.apple.WebKit(965) deny(1) mach-lookup com.apple.diagnosticd

error 21:40:30.047610+0000 kernel Sandbox: com.apple.WebKit(919) deny(1) mach-lookup com.apple.diagnosticd

error 21:40:30.494985+0000 ControlCenter [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=125 sources=0

error 21:40:30.495110+0000 ControlCenter [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=125 sources=0

error 21:40:30.496685+0000 ControlCenter [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=140 sources=0

error 21:40:30.496774+0000 ControlCenter [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=140 sources=0

error 21:40:31.187016+0000 callservicesd [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=125 sources=0

error 21:40:31.188277+0000 callservicesd [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=125 sources=0

error 21:40:31.188198+0000 callservicesd [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=140 sources=0

error 21:40:31.190006+0000 callservicesd [ERROR] -[AVAudioDevice createNameForScope:]:157 AudioObjectGetPropertyDataSize kAudioDevicePropertyDataSource failed with error=who? [2003332927] deviceId=140 sources=0

error 21:40:34.411374+0000 symptomsd Ignoring source 0x144e3d670, snapshot is from kernel kernel_task UDPSUBFLOW4 flow id 117729 (close) so pkts rx 1 tx 0, bytes 141 0 cell 0 0 wifi 0 0 wired 0 0 deltas 141 0 0 0 0 0 0 0

error 21:40:34.412712+0000 symptomsd Ignoring source 0x144e3d670, snapshot is from kernel kernel_task UDPSUBFLOW4 flow id 117727 (close) so pkts rx 1 tx 0, bytes 141 0 cell 0 0 wifi 0 0 wired 0 0 deltas 141 0 0 0 0 0 0 0

error 21:40:34.413563+0000 symptomsd Ignoring source 0x144e3d670, snapshot is from kernel kernel_task UDPSUBFLOW6 flow id 117728 (close) so pkts rx 1 tx 0, bytes 141 0 cell 0 0 wifi 0 0 wired 0 0 deltas 141 0 0 0 0 0 0 0

error 21:40:34.414279+0000 symptomsd Ignoring source 0x1458465a0, snapshot is from kernel kernel_task UDPSUBFLOW6 flow id 117730 (close) so pkts rx 1 tx 0, bytes 141 0 cell 0 0 wifi 0 0 wired 0 0 deltas 141 0 0 0 0 0 0 0

error 21:40:34.820218+0000 PerfPowerServices Failed getting camera location from device with GUID: <private>


Mar 19, 2022 12:59 PM in response to rogue.one

My Logitech C920 Pro Webcam continues to offer audio and visual functionality on an M1 mini running macOS 11.6.5, and a 2021 16-inch MBP M1 Pro running macOS 12.3. I do not use Zoom, but it does work in FaceTime, Webex, and dictation on both Macs.


On my M1 mini, the webcam was plugged into a 4-port bus-powered hub, and on the MBP M1 Pro, it was a direct connection with a USB-A TO USB-C 3.2 Gen 2 dongle.

Mar 20, 2022 2:37 PM in response to hcsitas

Not using G Hub. The Privacy settings list Zoom, but not FaceTime. But that is same with problem webcam and other webcam.


I have since taken the problem webcam to another Mac Mini M1 where it works as expected. There is something about my Mac Mini M1 - either hardware or software - that doesn't like my C920s. I'm at a loss to the next steps.

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No audio with C920s and Mac Mini M1

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