Test your camera before the call: a 30-second checklist
The five checks that catch 95% of camera failures before the meeting — and the thirty-second routine to run all of them.
Nobody reads camera troubleshooting docs at 9:57 for a 10:00 call. Here is the short version, built from the failures we see most.
The 30-second routine
1. Start a preview (10 seconds). Open our camera test page in the browser you’ll call from and press start. This single check rules out: browser permission problems, a dead device, a device held hostage by another app, and the eternal black preview.
2. Look at the resolution line. The test shows what the camera actually delivers. If it says something absurd like 320×240, close other apps that may have grabbed the camera at low quality — camera access is exclusive on many systems.
3. Check the light. A camera privacy shutter or indicator light that doesn’t move when the preview starts means the OS sees a device but the hardware is shuttered. Physical switch, physical fix.
4. Close the app you forgot. Zoom desktop, OBS, Teams desktop — any of them holding the camera will make the browser’s preview black or stutter. Quit them, not just minimize.
5. If there’s no camera at all — decide before 9:59. Don’t spend the meeting explaining. Either pair your phone (it’s the best camera you own) or switch on a clean Blank Screen feed and join like nothing happened.
The three failures the test page catches, ranked
From our support inbox, in order of frequency:
- Permission denied — the browser was told no once, and it remembers. Fix: camera icon in the address bar → allow.
- Device busy — another app owns the camera. Fix: quit the other app.
- No device — broken, disabled, or never existed. Fix: VirtualCam.
Everything else is rare enough that you should not pre-worry about it.
If you use VirtualCam
The extension has the same three checks built into its Test tab (options → Test): connection service reachable, permission sensible, device answering. Run it once after installing so your first real call isn’t the first test.
That’s it. Thirty seconds, five checks, and the phrase “sorry, can you see me?” stays out of your vocabulary.