Published 2024-09-25 by TechNet New England
Mac webcam issues are usually caused by permissions, another app using the camera, or a software glitch that can be fixed by restarting the camera process. ## Fix 1: Check Privacy Permissions 1. Open **System Settings > Privacy and Security > Camera**. 2. Make sure the app you are using (Teams, Zoom, Chrome, Safari, FaceTime) is toggled on. 3. If the app is not listed, try opening it and using the camera. macOS should prompt you to grant access. ## Fix 2: Close Other Camera Apps Only one app can use the camera at a time. If FaceTime is open, Zoom cannot access the camera. Close all video applications, then open the one you need. Check Activity Monitor if you are not sure what is using the camera: 1. Open **Activity Monitor** (Applications > Utilities). 2. Search for processes like "VDCAssistant" or "AppleCameraAssistant." 3. If found, select them and click the X button to quit them. ## Fix 3: Restart the Camera Process Open Terminal and run: ```bash sudo killall VDCAssistant sudo killall AppleCameraAssistant ``` These processes manage the camera. Killing them forces macOS to restart them fresh. Try the camera again. ## Fix 4: Restart Your Mac A full restart clears any stuck processes and resets hardware connections. Click **Apple menu > Restart**. ## Fix 5: Check for macOS Updates Camera driver updates come through macOS updates. Make sure your Mac is up to date. ## Fix 6: Test in FaceTime or Photo Booth Open **FaceTime** or **Photo Booth** (built-in apps). If the camera works there but not in a third-party app, the issue is with that app's permissions or settings. ## External Cameras If using an external USB camera: Try a different USB port. Try without a USB hub. Check if the camera requires a driver download from the manufacturer. Make sure the external camera is selected in the app's video settings (apps may default to the built-in camera). ## When to Contact IT If the built-in camera does not work in any application, including FaceTime and Photo Booth, after trying all fixes, the camera hardware may have failed. On managed Macs, an MDM profile may be restricting camera access. Contact your IT provider.