Hit it and you should watch /dev/video0 appear and disappear. Here is what the key looks like on my MSI WS-60. uvcvideo: Found UVC 1.00 device BisonCam, NB Pro (5986:055c) usb 3-1.4: New USB device strings: Mfr=3, Product=1, SerialNumber=2 usb 3-1.4: New USB device found, idVendor=5986, idProduct=055c usb 3-1.4: new high-speed USB device number 6 using ehci-pci You must hit Fn+ on your keyboard and then you'll see the following in your kernel logs: and it won't, because hitting the web camera function key on the laptop adds/removes the device in hardware as if it has been physically connected/disconnected. It didn't even show up when doing an lsusb. For the longest time, I just thought the web camera in my laptop was broken. I dont know if there are any other methods to turn on the camera, but if the problem is the keyboard, you can try to reset EC.
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