I am trying to rotate a Qt5 application 180 degrees using the linuxfb rotation=180 setting but it seems to be ignored. I've tried other linuxfb options such as offset but this also seems to be ignored. Are these options supported under buildroot? I did find this patch: https://borkedlabs.com/blog/2015/06-01-qt5-linuxfb-rotation-for-lcds/, but it is from 2015 so I would assunme this issue would have been fixed by now.
*** This bug has been marked as a duplicate of bug 14071 ***