Problems with v4l2loopback-dkms on Ubuntu 20.04 (kernel 5.4)
Problems with v4l2loopback-dkms on Ubuntu 20.04 (kernel 5.4)
Nobody else seems to care about this. So i was a Ubuntu MATE user until I saw these issues, where I jumped ship and went to Manjaro MATE. There's a forum thread on https://ubuntu-mate.community where somebody else was having the same problems, so I tried it for myself and no matter what I do — no matter however many times I play with dkms, v4l2loopback-dkms, kernel headers, kernel modules et cetera, it flat-out doesn't work. Not even using modprobe to make v4l2loopback do something worked, whereas in Manjaro it works just fine after I install the headers for 5.6. I tried liquorix (currently 5.6) in Ubuntu as a hail mary to see if switching the kernel to something more current works. It's unsigned which means it wouldn't work with secure boot but even when I did get it going on my other laptop I am testing with, it fails to work. I tried the same instance of Ubuntu MATE with kernel 5.4 on my main rig, still doesn't work. Would anybody want to give Iriun Webcam or Droidcam a try on 20.04 with kernel 5.4 to see if this is a reproducible problem on your own hardware? And if it is, what's the fix?
The issue isn't resolved by a simple statement. We need to understand why it fails. What action are you attempting? Are there any messages or warnings appearing? Check the GitHub issues page for details: https://github.com/umlaeute/v4l2loopback...+is%3Aopen