[SOLVED] Qt6 crosscompiled for pi4 raspi os 64 FAILED TO CREATE EGL CONTEXT

Harlock21

Two things: when I was deploying all the plugin renderers were lacking and the sysroot had bad symlinks.
Thanks all :)

Zavar

Hi @Harlock21, i'm having the same problems: (Failed to create RHI and Failed to initialize graphics backend for OpenGL). Could you share your method to fix this?

SGaist

@Zavar hi and welcome to devnet,

@Harlock21 wrote what was wrong in their last post as well as how they fixed it.

Zavar

Hi, @SGaist! I'm deploying on Ubuntu 22.04, which is not supported by linuxdeloyqt, so what I'm trying to do is using linuxdeploy and qt-plugin, which is kinda more manually than lixnuxdeployqt. I'm having the same issue and considering it as lacking of plugins/libraries. But there no tutorial to do this, and AI is not very helpful

SGaist

@Zavar If you want to see which plugin is missing, start your application with the QT_DEBUG_PLUGINS environment variable set to 1.

Zavar

@SGaist I try QT DEBUG PLUGINS and I didn't see anything wrong. Then I tried running with variable QT_QPA_PLATFORM=xcb helped fix the issue. Can you help me understand how this works?

SGaist

@Zavar which Linux distribution are you running ? With which desktop environment ?

Zavar

@SGaist I'm using Ubuntu24.04 with GNOME, Wayland disabled (Qt version 6.8.3)

SGaist

How did you disable Wayland ?

Zavar

@SGaist I did it by sudo nano /etc/gdm3/custom.conf -> WaylandEnable=false

SGaist

Did you check whether you have somewhere in your environnement something that sets the QPA platform to wayland ?