D-ILA Projectors » Reference Series

ID #1232

My projector is set to Auto 3D mode and my DIRECTV set top box is outputting a mandatory 3D channel at 1080/60i side by side, so why do I see a left/right split screen image instead of 3D?

You should be able to see a normal 3D picture if you manually select the Side By Side 3D mode in the HDMI menu of the projector. The projector’s Auto 3D mode cannot detect a frame compatible 3D signal like 1080/60p side by side unless the set top box generates important InfoFrame data. All HDMI 1.4a compliant devices use InfoFrame data to communicate to the projector (or TV) what 3D mode is being used. However, most set top boxes are older pre-3D era devices and are not HDMI 1.4a compliant, and therefore do not have the necessary InfoFrame data. Other frame compatible 3D modes, which include 1080/24p top-bottom and 720/60p top-bottom, will also need to have the 3D mode selected manually from the projector menu if the set top box is not HDMI 1.4a compliant. In addition, it’s important to note that some satellite or cable 3D programs are using non-mandatory 3D modes (because they are not HDMI 1.4a compliant) and the projector will not display them in 3D. Please refer to the related FAQ that addresses this issue.


Last update: 2014-01-22 15:13
Author: Ken Bylsma
Revision: 1.1

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