jifer wrote:
Camera was working fine.... before I completed all the latest updates for Big Sur. Since then, the green indicator light shows the camera is on during zoom calls etc but my screen is black. No one can see me even though I can see them. Checked camera permissions, all good. Checked if camera is still installed, all good. Performed system check, all good. Restarted computer multiple times, camera still doesn't work...Found a suggestion about going into "terminal" and typing a code but computer messaged that it didn't recognize this code..Almost certain it has something to do with Big Sur updates! Suggestions?
To trouble shoot further you can:
—Try a SafeBoot https://support.apple.com/en-us/HT201262
Takes noticeable longer to get to the login screen, does a 5 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.
This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.
—Test issue in another user (or guest user) account https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac
This will tell you if it a universal issue or isolated to your user/admin account.
Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus
these are all known to cause issues on the macOS
