On 2023-10-07, Peter Hessler <phess...@theapt.org> wrote:
> A lot of the Thinkpad laptops have a physical switch that will
> cover/uncover the camera.

covers the visible light camera, anyway... not sure about the IR one.

though actually the "camera in use LED" no longer lights when that slider
is closed on mine.

>:video: ioctl VIDIOC_DQBUF: Invalid argument
>:the LED lights up near the camera and a black window is displayed...

just tried on my T14 and same there - same for video(1),
ffplay -i /dev/videoX and mpv av://v4l2:/dev/videoX.


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