オリジナル投稿者： mister790 ,
The iSight camera wasn't working on my Macbook Air. But after I wiped the hard drive and reinstalled OS X from scratch, it started working. So as a troubleshooting step to rule out software issues, try starting the computer up from a clean OS X install on an external hard drive. If the iSight camera works under those circumstances, it's probably a software issue.