imx6q images: fsl-image-qt5.
The qt5 opengl es examples with classes inherit from qopenglwidget show nothing, and the classes inherit from qopenglwindow or qwidget is ok.
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it works with setAttribute(Qt::WA_AlwaysStackOnTop);
Why?
Here I found an example of QOpenGLWidget on i.MX6 SABRE Lite board:
http://blog.qt.io/blog/2014/09/10/qt-weekly-19-qopenglwidget/
Have a great day,
Victor
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