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Old 07-23-10, 10:44 AM   #4
NVIDIA Corporation
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Join Date: Mar 2005
Posts: 2,487
Default Re: Syncing Quadro card's 2 outputs for dual flat panel 3D display

The driver automatically locks the two outputs together if their mode timings are identical. Are you using a single-link passive DP-to-DVI adapter, or an active dual-link one? I would recommend starting X with "startx -- -logverbose 6" and the comparing the mode timings for the two heads. If they're different at all, that might explain why they're not locked.
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