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qtz playback in machines with 3 gfx cards

Hi,

I'm currently trying to configure a mac pro tower with 3xNvidia 7300GT graphics cards for a video installation project. We hope to use 4x video outs as well as one main user interface display.

I'm aware I can't spread one qc across all the displays, however I was hoping to be able to play 4 seperate qc files, one on each display.

That doesn't seem to be possible, if I drag a qc file in quicktime player from screen to screen it goes to pure white if I put it onto any display which is coming off a second or third graphics card.

whats going on? I thought that with PCI-Express machines, core image was fully supported on secondary display cards? System Profiler does tell me that core image is supported on all displays.

Whats the technical limitation here? Any way of playing back quartz composer files on all displays at once? (each qc file fullscreen on one display)

Roger
Inside-Us-All visuals
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