Blinking QML animation on slow computer

[dmitry.aka.jok]

I'm trying to make programm for POS terminal (builed on Intel Atom 525) and I try to use Qt version 5.1.0-r2 (linux version x86, precompiled)

Program on normal computer (or laptop) runs great, but on the POS is blinking
Here is video: (sorry for the video from the camera)
"YouYube":http://youtu.be/2kPShl6AbD0

The only interest advice I found, is the selection of the graphics system like this:
@QApplication :: setGraphicsSystem ("raster");
@

but

1. In help said
   *The following class members are part of the Qt compatibility layer. We advise against using them in new code. *
2. QApplication, which have following method, needed only for widgets (QML uses QGuiApplication)
3. And, Qt 5.1.0 still says he does not see this method at all

Can anyone advise - where to dig it?

[billouparis]

Almost looks like a double buffering issue, but not so sure, since the flickering screen seems to be an entire white screen in your case...

Bill