打开比如 Facetime 之类的软件之后,可以选择到显示器的摄像头，摄像头旁边的绿色小灯也是亮的。 但是摄像头没有输出内容，是黑的。
Facetime 过一会会显示一个错误：
No Video FaceTime has not received any video from the connected camera. Restarting your computer may fix this issue.
