Help w Rotate feature

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Jul 9, 2002
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I use my SXGA DVI LCD monitors rotated 90 degrees. The way I do this is through installing and running software from PortraitDisplay called PivotPro, which I assume would software overlay the image. However, it is very taxing on the CPU. I can't even watch DVD full screen on one monitor (really half screen since screen is narrower when rotated) without artifacts or the CPU going 100% on my p4. I have 4 monitors on one system all rotate, and using 1 AGP Matrox P650 dual DVI and 2 ATI Radeon 7000 PCI dvi out cards.

I came across on Nvidia's site that indicated that the Nvidia driver has a rotate feature called NVRotate and that this worked with all Nvidia GPUs. The literature indicated that this would enable hardware 2d/3d/video acceleration.

Now is that my problem? I'm using software acceleration? So if I switched over to Nvidia cards (1 AGP and a few PCI) and using Nvidia Forceware with NVRotate, I get hardware acceleration and my peformance will be the same just as if I didn't rotate my monitors?

Thanks for the help.



This is what Nvidia says on their site:

"Many LCD flat panels support rotate (or pivot) mode natively within their monitor stand, but lack the software to provide full hardware acceleration for 2D and 3D applications, and video playback. Now, with NVRotate, you can rotate any display 90, 180 or 270 degrees for maximum flexibility with no limitations or performance penalties. "
http://www.nvidia.com/object/feature_nvrotate.html

This is the software I'm currenly using to do the rotate:
http://personalcomputing.portrait.com/us/products/pp_overview.html
 
Actually I'm not sure if it uses the GPU for the rotate function. If I were you I would contact nV and ATI (they also have rotate) and ask both of them how their rotate feature works and what resources it uses/stresses to achieve the rotation of the image. It is very likely that it is VPU crivean and will free up alot of your CPU cycles, especially after the blurb on their site.

<A HREF="http://www.nvidia.com/page/contact_information.html" target="_new">nV's Contact Info</A>
<A HREF="http://www.ati.com/support/contact.html" target="_new">Ati's Contact Info</A>

Let us know what you find out, would be good info to have.


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