Hello,
It seems that this patch https://forum.freecadweb.org/viewtopic.php?t=33359#p354412 makes users happy while running FreeCAD under Wayland : see void-linux/void-packages#14626 for details.
Does coin dev have an opinion about this patch issue, and if this patch might help ?
Edit: reformulate

My knowledge about GLX and Wayland is very basic (only from a user perspective), so I do not know what issues may arise when applying this patch. I could make the removed check for GLX optional and enabled by default. Maybe some other devs can shed some light on this.

I've found why coin3d doesn't work correctly on the Wayland environment. The QGLWidget has a problem with a Wayland. I've re-implemented the QuarterWidget with QOpenGLWidget ( https://github.com/epuzanov/pivy/tree/QOpenGLWidget ).

This bug is going to get really noisy soon due FreeCAD wayland users preferring to operate in wayland env and not Xwindows

I updated an earlier branch to fix some issues I encountered while investigating EGL support on Wayland.

You can find this work at https://github.com/magic-lantern-studio/coin/tree/glue_egl. I did not create a merge request since it has not been tested for building on other platforms, other than Ubuntu.

Information on building this can be found at https://github.com/magic-lantern-studio/coin/wiki/OpenGL-ES-Investigation.

This bug is going to get really noisy soon due FreeCAD wayland users preferring to operate in wayland env and not Xwindows

It's happening

This bug is going to get really noisy soon due FreeCAD wayland users preferring to operate in wayland env and not Xwindows

It's happening

It really is happening

@VolkerEnderlein are there plans to review #471 ?

are there plans to review #471 ?

My two cents:

#471 is still in draft and marked "do not merge", and now needs a rebase. I think the best would be to get that PR dusted off, apply b49b8b4, pull it into a separate branch and then hopefully CI will build testable binaries. If it doesn't, the PR should be extended so that it does. These should then be tested by the parties that need this (FreeCAD), then they can determine whether it is ready to be merged or not.