Bug #15329 and window positioning

[Tobias Leupold]

E-Mail von Matthias Klumpp vom Montag, 19. Oktober 2026, 21:47:
> Am Mo., 19. Okt. 2026 um 21:38 Uhr schrieb Tag Howard <kde at jthoward.dev>:
> >> [...]
> >
> > That quite simple code is less simple than you think. What if a monitor is
> > unplugged/rearranged? What if the system scale changes? What if the user
> > doesn't *want* you to restore your window state (preferences, window
> > rules, tilers, etc.). There are reasons the protocol exists.
> > There is no component that is sytemd-specific, don't know where you got
> > that idea

I thought "The latter will be possible once we have systemd-appd, so the
compositor can selectively enable the protocol for applications that have
positioning permissions" would have something to do with systemd.

> > xdg_session_management_v1 is supported by kwin and mutter, it is not
> > experimental. There is no such thing as a patched wayland in this context
> > ext-zones is not needed for session restore, only for apps that have
> > multiple windows which need to be positioned relative to each other. And
> > again, enabling it just a plugin, not some patched version of kwin
> >
> > There's no big conspiracy to break you apps or kill openrc or whatever.
> > We're all just people trying to make kool stuff happen. Sometimes that
> > takes time. Sometimes it has rough edges. But at the end of the day I
> > think it will be well worth the effort.
> 
> +1 to that, and also, to add:
> 
> Am Mo., 19. Okt. 2026 um 21:28 Uhr schrieb Tobias Leupold <tl at stonemx.de>:
> >> There's no chance that the quite simple code we used will work again
> 
> It would, with kwin-zones and some nice Qt abstraction. But I don't
> know if Qt would accept that for an experimental protocol, so I
> haven't contributed it yet. Once done though, it would actually work
> *better* than it does on X11 right now, it's a much smoother, less
> annoying experience! The previous "simple" code was also extremely
> complex under the hood.
> All that said though, there is a fairly good chance that
> xdg-session-management will do what you need, and that protocol has
> broad support. Just be patient, and help out constructively if you
> like and want things to go a bit faster.

I think I have no other choice than to be patient, once I'm forced to use
Wayland on all of my boxes. However, I fear I won't be able to help much here.

Anyway: Thanks a lot for the insights. And thanks a lot for for working on
this, and hopefully bringing this back eventually. This is imho a core feature
we really need, and always needed.

Let's hope for the best ...

> Cheers,
>     Matthias