v4l2loopback VS xdg-desktop-portal-wlr

I am relatively new to linux, so pardon if this is a newbie question. I want to install the v4l2loopback module to 6.3.0-asahi-8-1-edge-ARCH. When I manually compile from https://github.com/umlaeute/v4l2loopback, and attempt to install, I obtain a vermagic and kernel version mismatch. Running modinfo:

If you want to stream your webcam as an H264 encoded rtsp stream, it can be done with either rtsp-simple-server or V4l2rtspserver And it is possible to stream a linux desktop (and any program that might be open, like your web browser with the gcode viewer running on it) with the V4l2Loopback device and either of the two prgrams above. It is quite an involved process, but it is do-able.

https://github.com/umlaeute/v4l2loopback

Effectively these let an app (eg some VToonify tool) generate content that from the perspective of your live streaming app look like they are from a webcam

note: want to get extra fancy and use random sources or have multiple streams use a single webcam source?? check into v4l2loopback -- https://github.com/umlaeute/v4l2loopback

https://www.youtube.com/watch?v=E89XQXrA_tI (which uses this)

I'm trying to install Linux-Fake-Background-Webcam, which in turn requires 4l2loopback. Following the 4l2loopback manual, I try the following command to install it:

Download the last version bash wget https://github.com/umlaeute/v4l2loopback/archive/refs/tags/v0.12.5.tar.gz

scrcpy and v4l2loopback works well

It comes with a systemd service file https://github.com/emersion/xdg-desktop-portal-wlr/blob/master/contrib/systemd/xdg-desktop-portal-wlr.service.in that you can use

Are you running the Wayland envvar for Firefox, MOZ_ENABLE_WAYLAND=1? Because the rest of your setup sounds very similar to my (working) setup. You could also run the Python test script included with xdg-desktop-portal-wlr (bottom of this page) as a sanity check that nothing's going wrong there

- Global hotkey portal

Not yet: https://github.com/emersion/xdg-desktop-portal-wlr/issues/107

You'll need this

I believe that a lot of the current approach to fixing it is something similar to xdg-desktop-portal. That's for signaling for screenshots, but a similar idea could work for listening for key events without being focused, apparently. It bypasses the standard Wayland system completely and uses D-Bus and Pipewire instead. I'm not too familiar with the details myself, though.

I don't know which of the xdg-desktop-portal backends you would need for gamescope, but xdg-desktop-portal-wlr has a config file which it reads where you can set the preferred output and set the chooser_type to none. That makes it skip the screen selector for me.

See these links for more info: * flameshot: flameshot gui from cli does nothing. dbus error UnknownMethod: "No such interface “org.freedesktop.portal.Screenshot” #2872 * xdg-desktop-portal: No such interface “org.freedesktop.portal.Screenshot” on object at path /org/freedesktop/portal/desktop #861 * xdg-desktop-portal-wlr: screenshot: Announce version property

This is a known issue: https://github.com/emersion/xdg-desktop-portal-wlr/issues/83