Here's how you do it
Alienware M17X R3/R4: Compatibility of HDMI output with 3D
Still needs some updating but I figured it may be of interest for those who didn't purchase the 120hz screen option but have a 3D TV or monitor.
M17x r3/r4 enable 3D with HDMI output
Discussion in 'Alienware 17 and M17x' started by Alienware-Luis_Pardo, May 14, 2013.