trivial app fails to appear in shell and crashes it on close

[Gerry Boland]

Take this code:

#include <QApplication>
#include <QWidget>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *w = new QWidget();
    w->showMaximized();
    return app.exec();
}

and this Qt pro file:

QT += core gui widgets
TARGET = simple-qwidget
TEMPLATE = app
SOURCES += main.cpp

and build on the device. On unity8 run with:

./simple-qwidget --desktop_file_hint=/usr/share/applications/mediaplayer-app.desktop

You'll see the splash screen appear, but you'll never see a frame from the app.
When I Ctrl+C the app, unity8 crashes

[Albert Astals Cid (aacid)]

Had a look at this, the issue is that the application is creating two surfaces even if the second is never visible nor painted on. Since we do not support multiple surfaces per app at the moment this is breaking in qtmir.

This would be fixed by the multi-window support in qtmir/unity8

[Daniel d'Andrada (dandrader)]

It works fine nowadays.