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archlinux·Arch Linuxbyflowey41

[support] OBS virtual camera won't start

👋 hi. happy to be here

the obs virtual camera won't start. i get a pop-up with this exact message ->

Starting the output failed. Please check the log for details. Note: If you are using the NVENC or AMD encoders, make sure your video drivers are up to date.

everytime i try to start the virtual camera. i already tried:

  1. updating the system with: doas pacman -Syu

  2. installing intel graphic card drivers (my laptops model is UX3405MA)

  3. changing the video encoder settings multiple times

  4. reinstalling v4l2loopback

  5. other basic stuff i don't remember

then at last i came across this forum thread: https://obsproject.com/forum/threads/obs-virtual-camera-failed-to-start-streaming-on-dev-video2-invalid-argument.184717/

and there they talk about how it is related to an issue in the application itself¿

so then i wanted to download a newer, pre-release version, because i read somewhere that it has the relevant bug fixes, but didn't know how (im guessing the only way to do this on arch is by building the source code)

thank you if you read through all this

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2 replies

Hi.

The same issue is present with OBS flatpak on newer distros. Apparently, v4l2loopback was recently updated and latest OBS does not work with it. I think I read somewhere that version 31.1 should fix this.

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