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August 31st, 2025 08:43

C3422WE, MacBook recognizes microphone but not camera

Hello,

I’m using a Dell C3422WE monitor. Up until last week, everything worked fine. When I popped up the built-in camera, both the camera and microphone were detected and usable. However, starting recently, when I pop up the camera, my MacBook only recognizes the monitor’s microphone, not the camera. I’ve attached photos for reference.

Hardware: Apple M3 Pro
OS: macOS 15.6.1 (24G90)

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August 31st, 2025 13:37

Dell GHN (Get Help Now) chat technical support must verify the ownership and warranty status. Click the blue "Get Help Now" on the right to start a private live chat session. Share the private C3422WE Service Tag with them.

Juat prior to the issue starting, had you done a macOS update to macOS Sequoia 15.6.1? Expanding on that question, did the earlier macOS 15 Sequoia versions all work correctly identifying the Webcam camera =
15.5
15.4.1
15.4
15.3.2
15.3.1
15.3
15.2
15.1.1
15.1
15.0.1
15.0

If available, connect the C3422WE to a Windows OS computer. Does the Windows OS computer recognize the Webcam microphone and camera?

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August 31st, 2025 13:42

No, the issue began while I was already on the current macOS version - it had been working fine with this same version until recently.
Unfortunately, I don’t have access to a Windows PC to test the monitor on.

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August 31st, 2025 14:11

While awaiting the Dell GHN (Get Help Now) chat technical support, you can try this =

* Turn the MacBook off
* Turn the C3422WE off
* Push down on the Webcam & Mic module to close it
* Disconnect every cable (including the power cable) from the C3422WE
* Press the C3422WE rear power button in for 8 seconds (clears any residual power in the circuits)
* Reconnect the power cable to the C3422WE
* Reconnect only the USB-C to USB-C cable from the C3422WE to the MacBook
* Turn the monitor on, then the MacBook
* Push down on the Webcam & Mic module to re-open it
* Retest

Consider posting the issue on the Apple Forum to see what other Apple users can add as far as troubleshooting.

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