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Old 11-09-2007, 10:55 PM
srothwell's Avatar
srothwell srothwell is offline
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Join Date: Jul 2004
Location: Richmond, VA
Posts: 1,064
Where does upscaling happen?

When my TV and video card are set to 1080i, and Sage records a 480i show and I play it back..... where is the scaling from 480i to 1080i done?

Is it Sage? If so, are there adjustments somewhere?

The reason I ask is anything recorded on analog cable TV looks like crap when playing back lately. It has this alsmost ghosting after-image. It's almost unwatchable.

I have tried to change every setting known to me.... DirectX playback vs. Overlay. Tried Full Screen Exclusive. Tried changing all the MPEG modes.

I have tried nvidia decoder (which I normally use), intervideo, SageTV decoder. None of it made any difference.

I even switched the video card to HDMI (was on component) and 1080/60p and that didn't help.... although it looks really good on HD stuff!

If I playback the file directly in Windows Media Player, Quciktime or VLC and bring it full screen it looks watchable. It's only when Sage is upscaling it, that it looks like crap.

Anyone have any ideas I can try?


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Old 11-10-2007, 08:01 AM
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Djc208 Djc208 is offline
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Join Date: Feb 2007
Location: SE Virginia
Posts: 674
The computer will be performing the upscaling. The TV will re-scale if the input resolution doesn't match it's native resolution. I'd check your TV manual and see what it recomends, you want to make sure the video card is using the same resolution and refresh rate as the TV so any re-scaling by the TV is kept to a minimum.
Could also check the TV settings, if you're using an HDMI input the TV could be trying to implement 3:2 pulldown or some other film processing method on the signal, which the computer should have already done.
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Old 11-10-2007, 09:23 AM
srothwell's Avatar
srothwell srothwell is offline
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Join Date: Jul 2004
Location: Richmond, VA
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All the 3:2 stuff is turned off on the TV.

In fact, this started about a year ago, then went away by itself. A year ago I had a completely different TV.

HD stuff looks fine. It's the stuff that's analog that looks like crap. But if I watch it on VLC or Quicktime and bring them full screen, it looks OK. It's only when Sage plays them that they look bad and have the yucky after-image.

the after-image doesn't happen on digital channels, only analog.
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