Bug#1113738: doomsday: segfault on debian 13

[Bernhard Übelacker]

control: tags + patch


Hello,
unfortunately upstream had dropped Qt altogether,
but had no release the last years.

I tried what happens if simply avoid all "QX11Info::display()"
by returning early if "QX11Info::isPlatformX11()".
This makes it kind of playable in a short test,
but mouse look is not possible because of following message:
     qt.qpa.wayland: Setting cursor position is not possible on wayland


So I made another attempt to set QT_QPA_PLATFORM=xcb if a Wayland session is detected,
like it is done e.g. in FreeCAD or others [1], see attached patch.

Kind regards,
Bernhard


[1]
https://sources.debian.org/src/freecad/1.0.0+dfsg-8/src/Main/MainGui.cpp?hl=109#L109
https://sources.debian.org/src/audacious/4.4.2-1/src/libaudqt/audqt.cc?hl=131#L131
https://sources.debian.org/src/goldendict-ng/25.06.0-2/src/main.cc?hl=266#L266