I figured out my issue.

I set the following environment variable:

QT_QPA_EGLFS_DISABLE_INPUT=1

Of course, the cursor dissapears, but when pressing around my Gui running on the Compositor I'm not noticing any buttons being pressed except when I press in them, so that's definitely preferred to a wonky cursor!

@primem0ver Yes I'm using Qt5.11.2.

@SGaist That an excellent idea! I've sent to interest@qt-project.org. Hope someone could save me.

Thank you Gaist !
I'm noobcake here this was my first question.

It looks like it's searching for the 56 version.

I'm not sure whether the official package comes with a bundled version but I think so. Can you check that ?

Hi and welcome to devnet,

Like you already found, the QtWayland module is likely what you are looking for.

If you would like to discuss things about it, one recommended channel is the #qt-labs IRC channel. You can also bring your questions on the interest mailing list You'll find there Qt's developers/maintainers. This forum is more user oriented.

@SGaist Thank you for you reply.

I tried to build it, but I got the message QtWayland requires Wayland 1.4.0 or higher, QtWayland will not be built. My version of wayland is the 1.3-1.

So I think it is not possible on my system now to run the newest Qt applications.

In the past, I already tried to use the version of the Debian repository, but it did not work. However I shall try in this direction again.