Symptoms
- Video calls show a black box instead of picture
- Camera app shows 'no camera found'
- Works in one app but not another
- Green light for camera activity doesn't turn on
Likely causes
- CommonCamera permission blocked for the site or appChrome and Android apps require explicit camera permission that may have been denied.
- CommonCamera in use by another app or tabMost webcams can only be used by one program at a time.
- PossiblePhysical privacy shutter closedSome Chromebooks have a physical slider covering the camera lens.
- Less commonDriver or firmware glitchA restart usually clears this, but persistent glitches may need an update.
What to do
- Check for and open any physical camera privacy shutter on the top bezel.
- Close other tabs, apps, or video call windows that might already be using the camera.
- Go to Settings > Privacy and security > Site settings > Camera and confirm the site isn't blocked.
- For Android apps, check Settings > Apps > [app name] > Permissions and confirm camera access is allowed.
- Restart the Chromebook to clear any stuck camera process.
- Test the camera in the built-in Camera app to confirm whether the hardware itself works at all.
When to call a pro
If the built-in Camera app also shows nothing after permission checks and a restart, the camera module may need hardware repair.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.