XNA 4.0 - Purple/Pink Tint Over All Sprites After Viewing in FullScreen

Question

I'm a noob to the game dev world and recently finished the 2D XNA tutorial from http://www.pluralsight.com.

Everything was perfect until I decided to try the game in Fullscreen mode. The following code was added to the Game1 constructor.

        graphics.PreferredBackBufferWidth = 800;
        graphics.PreferredBackBufferHeight = 480;
        graphics.IsFullScreen = true;

As soon as it launched in Fullscreen, I noticed that the entire game was tinted. None of the colours were appearing as they should. That code was removed, the game then launched in the 800x480 window, however the tint remained.

I commented out all my Draw code so that all that was left was

        GraphicsDevice.Clear(Color.CornflowerBlue);

        //spriteBatch.Begin();
        //gameState.Draw(spriteBatch, false);
        //spriteBatch.End();

        //spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Additive);
        //gameState.Draw(spriteBatch, true);
        //spriteBatch.End();

        base.Draw(gameTime);

The result was an empty window that was tinted Purple, not Blue. I changed the GraphicsDevice.Clear colour to Color.White and the window was tinted Pink. Color.Transparent gave a Black window.

Even tried rebooting my PC but the 'tint' still remains. I'm at a loss here.

Answer 1

I encountered the exact same issue, and solved it by disabling nvidia 3D stereoscopic.

Answer 2

Created a new XNA project and copied all code and content files to the new project. Colours are perfect once again.

---

Now check this out:

I added the fullscreen code back to the Game1 constructor in the new project:

    graphics.PreferredBackBufferWidth = 800;
    graphics.PreferredBackBufferHeight = 480;
    graphics.IsFullScreen = true;

Game launched in fullscreen, colours were tinted again. However, this time, after switching back to windowed mode, colours are fine.

Then changed to my monitor's native resolution:

    graphics.PreferredBackBufferWidth = 1680;
    graphics.PreferredBackBufferHeight = 1050;
    graphics.IsFullScreen = true;

Game launched in fullscreen, colours were tinted again and remained tinted when I switched back to windowed mode.

Gotta copy them to another new project now.

Weird...

Answer 3

The reason might be the way in which the Content Pipeline works. It compiles the various content into xnb files, then loads these back again when you run the game. I think some of these xnb files are caching and arent being recreated when you switch screenmodes.

Try this to see if it helps: go into the Debug/bin or Release/bin folders in your project folder depending on your build configuration, and delete any files. Build and Run again, see if it solves the problem.