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Home / Models / Logitech C920 HD Pro Webcam / works-in-browser-not-zoom

Model-specific diagnostic path

Logitech C920 works in browser but not Zoom

If DeviceOK receives live C920 video, a completely dead camera and basic OS/browser detection are less likely. Zoom camera selection, permissions, another app holding the camera, or app-specific processing become higher priority.

QUESTIONWhy does Logitech C920 work in browser but not Zoom?

Start with evidence

Run the tests that separate the likely branches

Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.
Run →
Camera Permission CheckCheck whether browser camera permission is available, blocked, or awaiting a prompt.
Run →
Camera Device SelectorList available cameras and switch between them.
Run →

Decision table

What the observation changes

ObservationWhat it meansNext action
Live C920 video works in DeviceOKThe camera can deliver frames to this browser session.Check Zoom selected camera and permissions before reinstalling hardware.
No browser app can access C920Issue is broader than Zoom.Check OS device detection, cable/USB and privacy permissions.
Closing another video app fixes ZoomResource contention was likely.Avoid simultaneous exclusive camera use or adjust app workflow.

Sequence

Work from reversible checks to escalation

  1. 01

    Run webcam test and confirm exact selected C920.

  2. 02

    Close other camera apps/tabs.

  3. 03

    Check Zoom video settings and OS permissions.

  4. 04

    Retest Zoom after one change.

Likely areas

Keep these branches separate

Zoom selected wrong cameraZoom/OS permissionAnother app using cameraVirtual camera/routing

Repair boundary

When to stop changing settings

If C920 cannot produce frames on multiple apps/computers, move to Logitech hardware/support path.