[arch-general] Kernel 4.16 - two entries in /dev/video for one webcam
Hi, I use skypeforlinux-stable-bin-8.18.0.6-1 and an USB webcam. Upon updating to the 4.16 series kernel, I noticed my webcam was not working in Skype, but instead a black screen was shown. Then, after checking 'ls -ltrh /dev/video*' I found these: crw-rw----+ 1 root video 81, 1 Apr 21 21:11 /dev/video1 crw-rw----+ 1 root video 81, 0 Apr 21 21:11 /dev/video0 This suggested that a "second" device was being detected. I launched Skype again and found it was possible to actually change the input video device to this, and it worked. Any clues on why the new kernel is creating two video devices for one hardware?
Forgot to mention, this is only an issue with Skype. In both guvcview and
firefox, the webcam just works.
On Sat, Apr 21, 2018 at 9:19 PM, Marc Ranolfi
Hi,
I use skypeforlinux-stable-bin-8.18.0.6-1 and an USB webcam.
Upon updating to the 4.16 series kernel, I noticed my webcam was not working in Skype, but instead a black screen was shown.
Then, after checking 'ls -ltrh /dev/video*' I found these:
crw-rw----+ 1 root video 81, 1 Apr 21 21:11 /dev/video1 crw-rw----+ 1 root video 81, 0 Apr 21 21:11 /dev/video0
This suggested that a "second" device was being detected. I launched Skype again and found it was possible to actually change the input video device to this, and it worked.
Any clues on why the new kernel is creating two video devices for one hardware?
participants (1)
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Marc Ranolfi