I’d like to try to get fedora to host a second headless Wayland session in the background for a remote user. I have a GPU but I want to share its render and compute, not the physical HDMI output, so I need a virtual Wayland session for the second seat.
Supposedly logind could handle the seat and udev permission issues clean enough, but headless use is still beyond me there.
I’d like a KDE Plasma environment running headless and then sunshine can just stream this session out using the war capture method. I just don’t know how to start up a separate Wayland session under another linux user in the background with a plasma session drawing to an imaginary monitor.
There seem to be 2 ways of doing this.
- wlheadless-run - a young project made to solve this particular problem
- kwin --virtual can theoretically do this, but I’m not finding clear examples of it
Just use wolf: https://games-on-whales.gitbook.io/wolf/stable/en/user/quickstart.md. Everything is ready out of the box. However, for a KDE session, you’ll have to rebuild KDE in the container instead of wolf-ui.
Wolf has opinions I disagree with. I could wrestle with containers OR look at the recent advances in Wayland, KDE (catching up to GNOME on this one for once) and classic Linux multiseat was easier than taming container security.
Wolf is better with temporary bring up and tear down. Honestly, probably not going to beat it there. But I want reusable instances and containers are needlessly complex for that.
Anyway, I got the last part of this solved this afternoon. Expect a how-to once I put it on the target system and confirm this process works there as well as my test rig.