Virtual Camera

[ov10fac]

Ok this is very strange. If I start OBS immediately after reboot, virtual camera runs fine. Then if I shut down virtual camera and close OBS and restart it, I can't get Virtual Camera to run. It almost acts as if OBS is still running with Virtual Camera active. I am running Fedora 36 and version 28.0.1 of OBS. If I reboot and start OBS all is fine again.
Very strange

 

[ov10fac]

Nobody else having this issue?

 

[pgassmann]

Found a workaround in another thread:

sudo modprobe -r v4l2loopback
sudo modprobe v4l2loopback

OK looks to be an issue with OBS disconnecting and unloading the v4l2loopback kernel module internally. You can work round this by stopping the virtual camera in obs and then doing:

sudo modprobe -r v4l2loopback
sudo modprobe v4l2loopback

This reloads the module and allows obs to reconnect to the module. This is still an issue in Obs 27.1.

 

[philowantage]

I spent two days researching this, and it works. Good temporary fix for now.

 

[ov10fac]

That seems to have solved the issue. There are a few others that I will report in a different thread like there seems to be a limit of three on the number of cameras OBS can support.