Well, it is a well-known fact that GeForce cards work with PowerDVD BR 3D in dual HDMI display mode.
I have tested several Radeon / GeForce / Intel GPU with various PowerDVD / TMT versions in dual HDMI display mode for a couple of years. Summary in old days here
in the sticky thread called FAQ for the 3D HTPC
. Even yesterday I tested this mode with
- EVGA GeForce GTX 750 Ti (02G-P4-3751-KR)
- LG 3D HDTV
- ONKYO TX-SR606 (2008 model, non-3D of course)
- GeForce 337.88 driver (latest)
- PowerDVD 14.0.4028.58 (latest build)
- TotalMedia Theatre 188.8.131.52 (latest build)
- Tangled (2010) Blu-ray 3D (a real disc)
- No AnyDVD HD running
Frame packing 3D in LG display worked beautifully, with DTS-HD Master Audio bitstreaming to ONKYO AVR, in every combination of HDMI+DVI, DVI+HDMI, HDMI+DP, DP+HDMI, DVI+DP, DP+DVI (with a generic DVI-HDMI adapter and a generic passive DP-HDMI adapter).
Where has this been debated "to death" to find it no-working? At least not in this forum. This has been debated to death in this forum too (in "FAQ for the 3D HTPC" thread) and it looks like people here are enjoying BR 3D in dual HDMI display mode successfully. Which PowerDVD version / NVIDIA driver version / your graphics card model number are you using? Which 3D projector model / AVR model? Maybe you are using a 120Hz frame sequential 3D projector? That's another story.
Even help support from Nvidia, PowerDVD tells you it will not work.
Never mind. These people (in particular in PowerDVD tech support) have no idea what they are talking about, as usual.