How to get GPS data from serialPort?

[w.tkm]

I can't get GPS data.
I am able to receive the data via serial communication, but no data is coming in using QGeoPositionInfoSource.

TestGps::TestGps()
{
	qDebug() << "Start Gps";

	QVariantMap params;
	params["serialnmea.serial_port"] = "COM3";
	QGeoPositionInfoSource *myGps = QGeoPositionInfoSource::createSource("serialnmea", params, this);
	qDebug() << myGps;

	if ( myGps ) {
		connect(myGps, SIGNAL(positionUpdated(QGeoPositionInfo)), this, SLOT(fnTest(QGeoPositionInfo)));
		connect(myGps, SIGNAL(updateTimeout()), this, SLOT(fnTest2()));
		myGps->setUpdateInterval(1000);
		myGps->startUpdates();

	}

}

void TestGps::fnTest(const QGeoPositionInfo &info)
{
	qDebug() << "Pos Update: " << info;
}

void TestGps::fnTest2()
{
	qDebug() << "Time Out!";
}

This code outputs [TimeOut].
Is it a timeout because the GPS data is not being received properly at the moment ?
The data received by the currently connected GPS is shown in the image.

[jsulm]

@w-tkm Please use "new" Qt5 connect syntax!
I don't see any signal called updateTimeout in https://doc.qt.io/qt-6/qgeopositioninfosource.html
You also should connect a slot to https://doc.qt.io/qt-6/qgeopositioninfosource.html#errorOccurred and print the error when it is called.

[w.tkm]

@jsulm
Use Qt5 connect syntax, could get.
Thanks!