[off-topic] QT6 QMessageBox makes application freeze if displayed with screen off using xrandr

[Patrick ZAJDA <patrick@zajda.fr>]

    Hello,
    
    While developing with PySide6, I noticed it is not possible to
    display a QMessageBox while screen is turned off using xrandr.
    If the QMessageBox is displayed with no parent window E.G. when the
    application starts the app simply freezes and the only way to leave
    this state is to kill it.
    No error is displayed in the terminal, if a QMainWindow or QDialog
    is displayed you will still be able to use it but when closing the
    last displayed interface, the application will still run in
    background.
    
    I opened this bug report:
    
    https://bugreports.qt.io/browse/QTBUG-132149
    
    Hop this helps,

--
Patrick ZAJDA