Display.sync() don't work

[@lex]

Hello all,
I wont to change de FPS in my program with Display(), but it don't work, I don't know why, this my code:

public class DisplayTest extends JFrame 
{
	static Vector3f camPos = new Vector3f();
    static Vector3f target = new Vector3f();
    static Vector3f target2 = new Vector3f();
	static float distance = 4.0f;
	static float angleY = 0.0f;
	static float angleX = 0.0f;
	public static void main(String[] args) throws LWJGLException {	
		DisplayTest test = new DisplayTest();
		
		test.setVisible(true);
		Display.setParent(test.c);
		DisplayMode displayMode = null;
		camPos.x = 0f;
                camPos.y = 0f;
                camPos.z = 1f;
        
	      Display.setFullscreen(false);
	      DisplayMode[] d = Display.getAvailableDisplayModes();
	      for (int i = 0; i < d.length; i++) {
	        if (d[i].getWidth() == 640 && d[i].getHeight() == 480 && d[i].getBitsPerPixel() == 32) {
	          displayMode = d[i];
	          break;
	        }
	      }
	      Display.setDisplayMode(displayMode);
	      Display.create();
	      Mouse.setGrabbed(true);
	      GL11.glShadeModel(GL11.GL_SMOOTH);
	      GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 
	      GL11.glClearDepth(1.0f); 
	      GL11.glEnable(GL11.GL_DEPTH_TEST); 
	      GL11.glEnable(GL11.GL_TEXTURE_2D);
	      GL11.glDepthFunc(GL11.GL_LEQUAL); 

	      GL11.glMatrixMode(GL11.GL_PROJECTION); 
	      GL11.glLoadIdentity(); 

	      GLU.gluPerspective(45.0f, (float) displayMode.getWidth() / (float) displayMode.getWidth(),0.1f,100.0f);
	      GL11.glMatrixMode(GL11.GL_MODELVIEW);
	      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); 
	      GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
		 Keyboard.create();
		 Mouse.create();

			cam();

			while (!Display.isCloseRequested()) {
			dessine();
			glFlush();

		   Display.update();
			}
			Display.sync(60);// Here I put 60 FPS
		   mouse();
		   key();
		   
		}
	
	[...]
	
	public static void floor(int x, int y, String texture){
		glBindTexture(GL_TEXTURE_2D, loadTexture(texture+".jpg"));
	    GL11.glPushMatrix();
	    {
	    	glBegin(GL_QUADS);
	    	glTexCoord2d(0,0);
	        glVertex3d(0.60+1.2*x,-0.60+1.2*y,0.8);
	        glTexCoord2d(10,0);
	        glVertex3d(-0.60+1.2*x,-0.60+1.2*y,0.8);
	        glTexCoord2d(10,10);
	        glVertex3d(-0.60+1.2*x,0.60+1.2*y,0.8);
	        glTexCoord2d(0,10);
	        glVertex3d(0.60+1.2*x,0.60+1.2*y,0.8);
	        
	        glEnd();
	        
	    }
	    GL11.glPopMatrix();
	}

	Canvas c;
	
	public DisplayTest() {
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		c = new Canvas();
		c.setBackground(Color.blue);
		c.setSize(new Dimension(640,480));
		this.add(c);
		this.pack();

	}
	[...]
    
	public static void draw(){
	     Parseur("test.xml");
	     NodeList listeparcours = nroot.getElementsByTagName("floor");
	     nbparcours=listeparcours.getLength();
	     for(int i=0; i<nbparcours; i++){
	     Element e = (Element)listeparcours.item(i);

	     floor(Integer.parseInt(e.getAttribute("x"))/10, Integer.parseInt(e.getAttribute("y"))/10, "iron");
	     }
	    }
}

Can you help me ?

[kappa]

yes, simple problem. Display.sync(fps) must be inside your game loop and must be called every frame.

[@lex]

It not work, I try:

while (!Display.isCloseRequested()) {
			dessine();
		   glFlush();
		   Display.update();
		   Display.sync(6);
			}

and I try:

while (!Display.isCloseRequested()) {
			dessine();
		   glFlush();
                   Display.sync(6);
		   Display.update();
		   
			}

and it not work, what is my error please ? (sorry, I'm a very noob beginner)

[@lex]

Ok, I have found the error, it's from texture.