IT DOES APPLY TO THE M17X AS WELL.I HAVE AN ALIENWARE M17X AND HAVE TRIED IT WITH PS3 AND XBOX.
WORKS FLAWLESSLY.AUDIO AND VIDEO VERY PRECISE WITHOUT ANY DELAYS.
THERE ARE ADAPTERS THAT CAN BE USED BUT WONT USUALLY WORK 100% WITH VIDEO AND AUDIO SYNC.ADDITIONAL SOFTWARE IS ALSO NEEDED TO PLAY GAMES.
GOOD LUCK