lxqt-config-mon crashes on wayland except kwin_wayland

[stefonarch]

lxqt-config-mon crashes on wayland except kwin_wayland

[stefonarch]

Just discovered the existence of https://github.com/artizirk/wdisplays. I've no multiple monitor setup but it looks working fine, so we could use that and just disable lxqt-config-monitor for screen settings on wayland.

[stefonarch]

This is no issue if running with kwin_wayland session.

A similar prevent as in lxqt/lxqt-session#468 could be done here too?

[tsujan]

Here, the problem is in KScreen. If it can't get outputs, lxqt-config-monitor will be useless under Wayland.

To prevent crashes under Wayland, we can do as in lxqt/lxqt-session#468: prevent its calling under Wayland.

I think I should close lxqt/lxqt-session#468 and make another PR for both, with this title:"On Wayland, disable functionalities that crash".

EDIT:
Done: lxqt/lxqt-session#469

[stefonarch]

As I mentioned above: it works fine if with kwin's wayland session, so maybe the check should be against the compositor too. In my startlxqt<wayland> I set a variable $WAYLAND_COMPOSITOR.

[tsujan]

so maybe the check should be against the compositor too.

In my opinion, we shouldn't try to compensate for others' bugs. kscreen either works with Wayland or not; it isn't supposed to work only with kwin_wayland.

[stefonarch]

Just noticed that it doesn't crash now, at least until you don't hit "save". It opens with no display to show.

[stefonarch]

Looks like solved by libkscreen 6.x now but only using kwin_wayland
see stefonarch/lxqt-kwin-session#1 (comment)