I’m trying to run a simple DesktopGL application on Linux that plays a sound effect, but it gives the error:
Microsoft.Xna.Framework.Audio.NoAudioHardwareException (0x80004005): OpenAL drivers could not be found. —> System.DllNotFoundException: soft_oal.dll
I started in Visual Studio using MonoGames DesktopGL template, and just added an .ogg using the content pipeline. I can build and run the project on windows without errors and the sound plays just fine. Trying to run the same application on Linux gives me the error.
Commenting out the code added for the sound stops the error from appearing.
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Audio;
namespace Test
{
///
/// This is the main type for your game.
///
public class Game1 : Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
public static List<SoundEffect> sounds; SoundEffectInstance soundInstance;
public Game1() { graphics = new GraphicsDeviceManager(this); Content.RootDirectory = "Content"; }
/// <summary> /// Allows the game to perform any initialization it needs to before starting to run. /// This is where it can query for any required services and load any non-graphic /// related content. Calling base.Initialize will enumerate through any components /// and initialize them as well. /// </summary> protected override void Initialize() { // TODO: Add your initialization logic here
sounds = new List<SoundEffect>();
base.Initialize();
soundInstance = sounds[0].CreateInstance(); }
/// <summary> /// LoadContent will be called once per game and is the place to load /// all of your content. /// </summary> protected override void LoadContent() { // Create a new SpriteBatch, which can be used to draw textures. spriteBatch = new SpriteBatch(GraphicsDevice);
// TODO: use this.Content to load your game content here
sounds.Add(Content.Load<SoundEffect>("bounce_c")); }
/// <summary> /// UnloadContent will be called once per game and is the place to unload /// game-specific content. /// </summary> protected override void UnloadContent() { // TODO: Unload any non ContentManager content here }
/// <summary> /// Allows the game to run logic such as updating the world, /// checking for collisions, gathering input, and playing audio. /// </summary> /// <param name="gameTime">Provides a snapshot of timing values.</param> protected override void Update(GameTime gameTime) { if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape)) Exit();
// TODO: Add your update logic here
soundInstance.Play();
base.Update(gameTime); }
/// <summary> /// This is called when the game should draw itself. /// </summary> /// <param name="gameTime">Provides a snapshot of timing values.</param> protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(Color.CornflowerBlue);
// TODO: Add your drawing code here
base.Draw(gameTime); } }}
