QtQuick application no graphical output

[Erakis]

Hi,

I have build a Linux image for the Beaglebone Black using Yocto. From here all is working perfectly. I'm able to run demo coming with QT (smarthome, cinematicexperience, ledscreen, etc...)

Now on my host computer, I have build the meta-toolchain-qt5 and then installed it. I have configured QtCreator to use this toolchain.
http://postimg.org/image/edx5otvhp/
http://postimg.org/image/lgjrkn8vb/
http://postimg.org/image/p799b325p/
http://postimg.org/image/idp59s85f/

Then I create an empty QtQuick project, deploy it over the Beaglebone using QtCreator.

When I launch (-platform eglfs) it I got no error but NO GRAPHICAL OUTPUT too. The application run and then close in about 1-2 seconds. I tried strace just to be sure that there was not something missing but I don't think so : http://pastebin.com/VaZTRYhU

Does anyone have any other ideas ? Because this is weird that Qt5 example QML are working but the one I built no !