Update : i changed os from Raspbian Bookworm to Ubuntu 23.10 and i can display Webpage without any error! Conclusion: bookworm was the cause and not wayland

Have a look at the https://github.com/flameshot-org code for ideas @drebelpai

Trying to do the same thing over here, @Johan-Borkhuis got any luck?
Still couldn't find a good example and I don't want to make the Qt app to talk to weston-screenshooter for this

Problem solved.
The issue was the default seat inside of the compositor was unset. Means the keymap attributes were emtpy. I have set it manually and now it works.

0948-0046-07-0A-TJ-0.jpeg

When configure Qt, did you add the following arguments?
It seems that the package won't be built unless you explicitly use them.
-eglfs -qpa wayland-egl -qpa xcb

Hi and welcome to devnet,

Glad you found a solution !

Can you share it so that other people encountering the same issue can benefit ?

@lartimus could you find any solution for this situation. I have same warnings for d3d11 also. I can't find any solution for this.

Just build Qt and don't deploy the xcb plugin (if it is really build).

You could use the wayland-client library like this before your instantiate your QApplication:

#include <QApplication> #include <wayland-client.h> #include <unistd.h> int main(int argc, char *argv[]) { struct wl_display *display = NULL; while(!display) { // Return NULL if no compositor avaliable in wayland-0 display = wl_display_connect(NULL); // Wait 200 ms so you dont overuse your CPU usleep(200000); } // Disconnect because QApplication will stablish its own connection wl_display_disconnect(display); // Start the app QApplication app(argc,argv); ... }

Its a bit ugly but it should work.

Hi,

That's a question better asked on the interest mailing list. You'll find there Qt's developers/maintainers. This forum is more user oriented.

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.