Moving widget to second screen not working

[binaural]

Problem solved, maybe help others. Thanks ChrisW67 for ideas. Need to read manual properly

I've check again configuration and code and following is working fine:

/usr/bin/songPresentation -qws -display "multi: LinuxFb:/dev/fb0:0 LinuxFb:/dev/fb1ffset=656,0:1 :0" -nomouse

and in code change (get geometry of first screen and mode second widget to that screen correctly).

QRect rect = widget->screenGeometry(0);
qDebug() << "Move to:" << rect.width() << ":" << rect.y();
w2.move(rect.width(), 0);

QRect rect = widget->screenGeometry(0);
qDebug() << "Move to:" << rect.width() << ":" << rect.y();
w2.move(rect.width(), 0);

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