Lemm said:
MasterP said:
Btw, in terms of input sources, different resolution doesn’t mean anything. The vast majority of TVs use the same input board and picture processing for HDMI and component input. Even if the Wii only runs at 480i, if the TV truely is the problem it’ll also have the “input lag” because it’s signal will be going through the same board, same chips, same post-processing as the PS3 on HDMI.
That’s not true. If the tv’s native resolution is different than the source, extra picture processing is required to re-size the image. Google running a nes on 1080p tv.
NES doesn’t use component input. It would use either coax or RCA, both of which have resolution upscaling enabled by default on the TV. Since no modern gaming devices use it, the upscaling hardware isn’t going to be fast because it doesn’t need to be. On the NES, even on older 1980s-era TVs there was a delay between when you pushed the button and when mario jumped. This has nothing to do with the TV and everything to do with playing a console running on a 2 MHz processor.
Take your TV apart and look for yourself. I’ve yet to see a TV where conponent and HDMI weren’t treated the same. HDMI has to go through a couple filters to seperate everything out but in terms of the actual picture itself, it’s identical.
As to resizing, look in the Nvidia control panel and you’ll see options relating to HDMI-TV picture scaling. EVERY device scales a 1080p output differently and not every TV displays the same 1080p signal in an identical manner. TVs automatically scale and adjust every input, even 1080p, to match what its chipset thinks 1080p should be. Perfect example, I’ve yet to get my ION’s rendition of 1080p to perfectly match an HDTV’s 1080p resolution, I ALWAYS have to manually adjust it on the PC side and end up with a weird resolution. The TV takes this weird resolution and displays it regardless. Can I tell a difference in 1080p movies? Nope. Any “input lag” in MW2 or L4D2? Nope.
I mean really, if scaling created lag problems don’t you think it would be a problem with PC monitors too? I’ve never heard of scaling lag on computer monitors. Change your PC resolution to something really weird and you’ll notice that the monitor scales it to full screen and keeps on trucking.
Quote:
Part I
Why do HDTVs lag on video games?
HDTVs typically only have one or two “native” resolutions. A set’s native resolution is the resolution that it displays on the screen. This means that sometimes, the HDTV must “scale” the resolution you input in order to display it.
On regular, non-HD televisions, there is only one native resolution, which is 480i (240p). Whenever you play a video game on a standard definition TV, the game console always outputs 480i/240p and the TV displays it as 480i/240p. No need for any scaling, so response time is always normal and accurate.
However, because HDTVs NEVER have 480i/240p (Standard Definition) and usually not even 480p (Enhanced Definition) as a native resolution, that means that any video game console we have that can’t output a High Definition signal is likely to lag on any HDTV display. It isn’t that it is impossible to scale an image with no lag; HDTVs simply put the emphasis on image quality, which takes some time to process, rather than speed. Some newer HDTVs now come equipped with a “Game Mode” to speed up the scaling process and reduce or eliminate lag on the set. You can read more about “Game Mode” later into the FAQ.
I’ll see your AVS Forum writeup and raise you your TV’s own instruction manual. Flip to the PC input section and you’ll find a table of natively supported resolutions. It’ll be more than one or two and 640×480 is most definately one of them. LED LCDs almost universally support 480i, 480p, 720p, 1080i, and 1080p, both with and without scaling.
Just try an XBOX360 or Wii on it, I think you’ll notice a difference. Enable game mode if you think it’ll help but disable all the other extras like MPEG balancing and noise filtering.