Setting content orientation changes the dimming effect when popup appears

Question

I have a screen with a popup that's supposed to be displayed when a user inputs an invalid parameter. However, when I deploy the screens to the embedded device, everything appears in landscape mode, clipping a part of the screen. To solve this, I added a Page element to main.qml with rotation set to 90. This then serves as a parent for all the screens so they appear correctly on the employed device. However, this fix does not work with any popups. To rotate popups, I started using contentOrientation: Qt.LandscapeOrientation property under ApplicationWindow in main.qml. This has fixed the issue of popups not rotating, but the dimming effect is now rendering incorrectly, only blurring half the application window. How do I rotate the popups and keep the dimming effect intact?

EDIT 1: The platform is Odroid-N2 with minimal image '20190806' for Ubuntu installed.

Answer 1

A workaround I have found to get things to work is customizing the dimming effect to force it to rotate.

// Controls dimming effect
Overlay.modal: Rectangle {
    rotation: 90
    anchors.centerIn: popupId
    color: "#66000000" // Opacity + Color of dimming effect.
}