Dell 4320 Projector - Manual (Page 47)

2. Enable the 3D function when it satisfies any of the below-mentioned
conditions:
a Computer/Laptop with a graphics card, capable of outputting a
120 Hz signal via VGA or HDMI cable.
b Input a suite of 3D content via Video and S-Video.
3. "3D Display" selection will only be enabled in the "Display Settings of
the Advanced Settings" menu when the projector detects either of
the inputs mentioned above.
4. 3D support and refresh rate are as below:
a VGA/HDMI 1280 x 720 120 Hz, 1024 x 768 120 Hz, and 800 x 600 120 Hz
b Composite/S-Video 60 Hz
c Component 480i
5. The recommended VGA signal for laptop is Single-mode output
(Dual mode is not recommended).
3D S YNC I NVERT — If you see a discrete or overlapping image while wearing
DLP 3D goggles, you may need to execute 'Invert' to get best match of
left/right image sequence to get the correct image. (For DLP 3D goggles)
Using Your Projector 47