Hi,
Are you using the latest L4.1.15_2.0.0 bsp image? I could not reproduce this issue on this version.
Now there are two ways in which you can do this,
- Run a wayland compositor (weston) before running your Qt Application.
- Compile qml-compositor and run it before running your Qt Application.
In both cases you have to have a compositor running if you want your application to run as a wayland client.
If you just want to run your application in fullscreen and nothing else, you can also use eglfs platform plugin and not use wayland altogether.
Hope this helps