[Development] Qt::WA_PaintOnScreen Changes

[Jorgen Lind]

Hi
> 
> I am porting an application to Qt5/KF5 and was surprised to see the
> main widget of the application was showing all black. There are
> screenshots of the original version and the buggy version[1] online. I
> removed
> 
> setAttribute( Qt::WA_PaintOnScreen, true );
> 
> on that widget and the widget was rendering fine again. I would like
> to know if that was a good idea and what are the implications or if
> this is a bug in Qt.

This seems odd. I'm not certain what would cause this, but it shouldn't be 
like that. Can you create a bugreport and provide a small example that 
reproduces this.

Jørgen