Have you tried connecting the graphics card to the 3D vision emitter
with a 3pin mini-DIN to 3.5mm stereo cable (as well as the USB)? The
USB connector is only really meant for use with the GeForce cards, the
stereo cable giving a 'better' connection (although you still need the
USB connection for power).
In Europe, the necessary cable is only supplied in the professional 3D
vision for Quadro kits, not with those originally sold. There is a
wiring diagram for the cable on the nvidia forum if you don't have it
(but the search function isn't working at the moment, so I can't give
Quoting Emiliano Ippoliti <e.ippoliti@...>:
> Dear Users,
> in my University I have an hardware system formed by:
> 1 - PC with Nvidia Quadro FX 4800 graphics card with DVI port.
> 2 - 64-bit Operating system Windows 7 Professional
> 3 - Projector ACER H5360 DLP 720P (3D ready) connected to the PC by
> HDMI/DVI cable
> 4 - Nvidia GeForce 3D Vision Emitter connected to the PC by USB
> 5 - Nvidia GeForce 3D Vision glasses
> I configured everything in order to use PyMOL stereoscopic
> visualization and it works perfectly.
> Recently, we bought a 120Hz LCD: the ACER GD245HQ. I simply
> disconnected the HDMI/DVI cable from the projector and connected it
> to the LCD by a DVI/DVI cable.
> After power computer on, I tried the 3D Nvidia tests: everything was ok.
> Then, I started PyMol and as usual I selected the "Quad buffered
> stereo" visualization in the "stereo mode" menu. The image started
> blinking but no stereoscopic effect through the glasses.
> Playing with graphic card parameters I discovered that if I
> decreased the resolution to 1440x900 (the default for the LCD is
> 1920x1200 at 120Hz) I got the stereoscopic effect, even if with a
> very annoying flickering through the glasses.
> What is the reason of this strange behavior?
> Is there some resolution limitation with PyMol (the Nvidia tests
> worked properly also at 1920x1200)?
> Is it possible to eliminate the flickering that I observe by the 3D
> glasses when I decrease the resolution under 1600x1200?
> Thank you in advance for any reply.
> Best regards,
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