Issues with webcam

C

ch4rr0

Hello,

I have been experiencing issues with my webcams (Logitech Brio 100 and Logitech c920) ever since upgrading to 14.0 (currently on 15.1). I have followed every notable tutorial on the matter but have yet to resolve the issues. The attached image shows my pwcview output. I have also tried testing the webcams in the browser (Firefox) using webcamtests.com, Zoom and Google Meet. The first two fail to load any video even though the cameras are detected, while Google Meet produces video similar to pwcview.

I have also tried running webcamd in the foreground with debugging enabled. When doing so the following error gets logged when accessing the camera:

ERR: : Failed to resubmit video URB (-6).

I appreciate any help on the issue.

Thank you in advance.
 

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Just starting with baseline troubleshooting, does either camera function with another computer and/or operating system? It strikes me as odd that you would see noise or distorted video as the output. Is the image static or does it change when the camera is moved, or disconnected and reconnected? Testing with another computer could eliminate or confirm hardware problems as a possibility. If the hardware is shown to work then you can be sure you're chasing a software issue.
 
Very slight success chance but I remember I once had to take a picture with pwcsnap on the chosen resolution which correctly activated the camera. Without doing that, it sometimes showed a distorted view. It was a Logitech C270.
 
It is in good enough state. Especially since it is really not that dificult to add any missing usb ids should you need to. Not to mention no one is crancking out webcam chips very quickly so that port is solid for a good while longer. See below an example for adding missing usb ids:

https://forums.freebsd.org/threads/...-hd-etc-quick-fix-to-make-webcam-work.101566/

Ultimately that port will have to be ffw to a newer linux media tree.

To the OP, check with usbconfig that you got the correct ugen address for your webcamd daemon. And also permissions for the /dev/usb/ devices are correct (perhaps g+rw for operator and have your user in that group)
 
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