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Tired of NVidia's Judder - Please Help!

552 Views 5 Replies 4 Participants Last post by maxleung, Mar 3, 2005

Leica

Discussion Starter · Mar 3, 2005

I love NVidia cards. I loved my 6600GT PCI-Express. It has awesome scaling - super sharp and detailed and amazing de-interlacing thanks to "Pure Video" and effortless TS or Hi-Def 1080i MPEG-2 playback capability.

BUT I am fed up of this card. Why?

Because it just skips frames every few seconds. Any scenes with panning are just unwatchable. It causes great headaches!

In contrast, ATI has crappy de-interlacing, so-so scaling and overally very crappy. BUT it has silky smooth panning with no judder. You feel relaxed watching stuff on it!

So is there a cure for NVidia? I have tried about 10 different drivers and different cards too...

Is there a way?

Thanks!

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g0blue

· #2 · Mar 3, 2005

Bumpity, bumpity.

I have the same problem. There is another thread that goes into great detail about this, but I don't remember the name of it. The gist of it is that the nvidia card can't drive the TV at exactly the right frame rate. Therefore, it needs to either drop or repeat frames every once in a while to stay in sync with the display. Any fixes discovered lately?

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Leica

Discussion Starter · #3 · Mar 3, 2005

So what good is all this "Pure Video" when they can't even fix something so simple!

They should call it "Puke Video"... since all is does is give you headaches and motion sickness

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jvincent

· #4 · Mar 3, 2005

The general answer to your issues is a DVD player that uses VMR9 renderless playback.

As far as status is concerned, TT 2.1 has this feature, ZP is working on it, and there are some others.

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g0blue

· #5 · Mar 3, 2005

Quote:

Originally posted by jvincent
The general answer to your issues is a DVD player that uses VMR9 renderless playback.

As far as status is concerned, TT 2.1 has this feature, ZP is working on it, and there are some others.

Sorry, this doesn't help. I see the same thing with ZP and nStant Media, both renderless vmr9. Swap in my Radeon 9700, problem goes away.

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maxleung

· #6 · Mar 3, 2005

I think this is the thread in question:

http://www.avsforum.com/avs-vb/showt...postid=4880548

In short, with Powerstrip, it IS possible to get the proper refresh rate. If your display device needs 59.94 hz, it CAN be done. Buried in the last few pages of the thread is Vern's technique for getting the right porch settings to allow you to get within +-.003 hz of the desired refresh.

My Benq 8700 projector locks sync at 60.000 hz over DVI - and I have a 1280x720 powerstrip timing that will do it exactly - supersmooth pans especially with 720p WMV-HD (not sure about DVDs yet - but it should be just as good). I'm using TheaterTek 2.1 and Zoomplayer 4.10 beta 2. TheaterTek 2.1 supports renderless BTW.

I also have a [email protected] timing - I use this when I watch video on my 19 inch CRT monitor - only when I need to check playback smoothness when I tweak my machine or when doing non-critical PQ watching (like low-quality mpeg2 sources).

However, I am using an eVGA 6800GT - it seems to have less judder issues than the 6600GT.

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