- 
    
Bug
 - 
    Resolution: Incomplete
 - 
    
P2: Important
 - 
    None
 - 
    6.2.4
 - 
    OS: Ubuntu 22.04 LTS
Qt version: 6.2.4 
Hello,
I am building a desktop application on Ubuntu 22.04 using Qt 6.2.4. I use CMake (>=3.22.1) for the build configuration. I use Qt Creator (>=6.0.2) to build and run the application. It builds fine, but when I run it, I get warning messages and no sound plays.
Below is the source code.
#include <memory>
#include <QApplication>
#include <QAudioOutput>
#include <QFileInfo>
#include <QMediaPlayer>
#include <QObject>
#include <QString>
#include <QUrl>
#include <QWidget>
class SoundEffect : public QObject {
  Q_OBJECT
public:
  SoundEffect(QObject* aParent, const QString& aSound)
  : QObject(aParent)
  , mSound(aSound) {
  }
  void PlaySound() {
    QFileInfo soundPath{mSound};
    QString soundAbsPath{soundPath.absoluteFilePath()};
    qDebug() << "soundAbsPath: " << soundAbsPath;
    auto soundUrl = QUrl::fromLocalFile(soundAbsPath);
    qDebug() << "soundUrl: " << soundUrl;
    mOutput.setVolume(1.0);
    mPlayer.setAudioOutput(&mOutput);
    mPlayer.setSource(soundUrl);
    mPlayer.setLoops(QMediaPlayer::Infinite);
    mPlayer.play();
  }
private:
  QString mSound;
  QAudioOutput mOutput;
  QMediaPlayer mPlayer;
};
int main(int aArgc, char** aArgv) {
  QApplication theApp{aArgc, aArgv};
  auto theWidget = std::make_unique<QWidget>(nullptr);
  theWidget->show();
  SoundEffect theEffect{theWidget.get(), "mySound.mp3"};
  theEffect.PlaySound();
  
  int exitCode{theApp.exec()};
  return exitCode;
}
Below is the console output.
Gtk-Message: 10:01:16.982: Failed to load module "xapp-gtk3-module"
Gtk-Message: 10:01:16.982: Failed to load module "unity-gtk-module"
Gtk-Message: 10:01:17.027: Failed to load module "canberra-gtk-module"
Gtk-Message: 10:01:17.028: Failed to load module "canberra-gtk-module"
Qt: Session management error: None of the authentication protocols specified are supported
soundAbsPath:  "/home/compscidude/build-TestSound-Qt6-Debug/source/mySound.mp3"
soundUrl:  QUrl("file:///home/compscidude/build-TestSound-Qt6-Debug/source/mySound.mp3")
[ALSOFT] (EE) Failed to set real-time priority for thread: Operation not permitted (1)
qt.multimedia.player: Warning: "Failed to connect: Connection refused"
qt.multimedia.player: Warning: "Failed to connect: Connection refused"
Would someone be able to help me diagnose the issue?