After I upgraded my Embedded Qt 5.9.8 Application to Qt version 5.12.8 I got the warning "Setting framebuffer size is only available with DRM atomic API". The application run on a i.MX6 Solo System On Module (OS Yocto Warrior Linux, Kernel 4.19).
I fixed this warning by setting the environment variable QT_QPA_EGLFS_KMS_ATOMIC. Then I got "Framebuffer size format is invalid".
How can I set the Framebuffer size format?
I tried to solve it with QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT. But I still get the warning.