How to use the Primary camera?

[feixing1]

    QGraphicsVideoItem* videoItem = new QGraphicsVideoItem(this);
    videoItem->setSize(QSizeF(480, 360));
    videoItem->setPos(80, 0);

//    QCameraViewfinder* viewFinder = new QCameraViewfinder();
//    viewFinder->setFixedSize(480, 360);
//    QGraphicsProxyWidget* widget = new QGraphicsProxyWidget(this);
//    widget->setWidget(viewFinder);
//    widget->setPos(80, 0);


    QList<QByteArray> devices = QCamera::availableDevices();
    for(int i=0; i<devices.size(); i++)
    {
        qDebug() << devices.at(i);  //Primary camera; Secondary camera
    }

    QByteArray device = devices[0]; //Primary camera
    QCamera* camera = new QCamera(device, this);
    qDebug() << "Camera Available:" << camera->isAvailable(); //Camera Available: true
    connect(camera, SIGNAL(error(QCamera::Error)), this, SLOT(showError(QCamera::Error)));
    camera->setViewfinder(videoItem);
    camera->setCaptureMode(QCamera::CaptureStillImage);
    camera->start();

when i use Secondary camera, everything works fine. but when i change to the Primary camera, got a graphicsitem fill with black, and got a warning "Cannot write to gdb: No connection"

how can i use the Primary camera correctly? thanks for any advice

[vladest]

what was the phone?
there is a bug in QtMobility in terms of QGraphicsVideoItem+QGamera+Symbian^1

[feixing1]

what was the phone?
there is a bug in QtMobility in terms of QGraphicsVideoItem+QGamera+Symbian^1

my device is Nokia N97. even i use QCameraViewfinder* as viewfinder, cant work with Primary camera, but works fine with Secondary camera.

The strange thing is this example(http://doc.qt.nokia.com/qtmobility-1...pture-cpp.html) works correctly with Primary camera on the same device N97.