Test wayland

[dilyn-corner]

With the release of plasma 5.20.0, Wayland support is at the fore. This issue exists to track progress on dropping Xorg dependencies. Currently it should be perfectly possible to start a Wayland session. Any issues relating to better Wayland support in this repository will be documented here.

[dilyn-corner]

The first issue I have encountered: I cannot start a Wayland session.

@sdsddsd1, tips or tricks?

[sdsddsd1]

I dont have a kde-system anymore, but I am glad to give my "expertise" :D
What are prerequisites you have already done? Like do you start with elogind, from tty or sddm? Without elogind the xdg_runntime_dir needs to be set. Things you probably know with your wl experience but just to make sure.
Going after KDE docs https://community.kde.org/KWin/Wayland#Start_a_Plasma_session_on_Wayland
dbus-run-session startplasma-wayland

[dilyn-corner]

Just a TTY for now :)

I thought I had done all of these things but I will retest.
Presumably forking xorg-server to add xwayland support will be necessary for now, but we'll see!

[sdsddsd1]

I am just snooping around (:
What do you try do start, kwin or kwinft?
Arch wiki references to the same docs I found above https://wiki.archlinux.org/index.php/KDE#From_the_console .
Arch also provides a "kde wayland" package. May be good to look over this.
https://www.archlinux.org/packages/extra/x86_64/plasma-wayland-session/

[dilyn-corner]

Their package only installs a .desktop file, which might be relevant.

The error I'm actually getting that seems to stop this is "no libinput :(". Which is a weird error to get.

[sdsddsd1]

I noticed that kwayland and plasma-wayland is missing as a package in the plasma repo.

[dilyn-corner]

kwayland is in frameworks and plasma-wayland is not a package (though *-session and *-protocols are, and we have discussed the former and the latter is in this repo).

[dilyn-corner]

As it stands, a pseudo list of currently required xorg libs:

kscreenlocker -> qt5-x11extras, xcb-util-keysyms
kwindowsystem -> qt5-x11extras
libkscreen -> qt5-x11extras
plasma-integration -> qt5-x11extras
plasma-desktop -> xorg-server
kwin -> libX11
kwayland -> EGL. This means mesa requires x11 platform support

There are a few more small deps sprinked in (like xcb-util-* stuff), but ultimately it all comes down to when kwayland stops being... Dumb? Like, that's the dumbest framework ever. It's literally named kWAYLAND for crying out loud.

[dilyn-corner]

kwin has a sneaky line in its build output:

xwayland required to launch kwin_wayland

This can't be it, right?

Will test, of course 🙃

[dilyn-corner]

Update: have tested all changes thus far. No longer have the aforementioned issue about libinput. Which is good.
New issue: session appears to launch, but it is merely a black screen. What fun.

[sdsddsd1]

Thats some progress.🍹
Looking for 'kwin blackscreen' brings up mostly issues related to nvidia. And also issues 4 years old :
💻 🧑‍🚒