View Full Version : optimal resolution


game boy
01-05-08, 11:20 AM
can somebody tell me what advantage of choosing the otimal resolution over 720 or 1080 i has when you are connected hdmi and your tvs native is 1366x768, is this a better choice? i have a olevia 527

Shape
01-05-08, 11:46 AM
Keep it progressive. 720p. It is 60fps, and some games are 60fps. 1080i is only 30fps.

game boy
01-05-08, 04:14 PM
i'm sorry maybe i didn't explain myself. i am wondering what the optimal selection for resolution will do for me vs choosing the 720 p choice? anybody

ClayPigeon
01-05-08, 04:32 PM
IBTL! I say that cause when i log back in a few hours i expect to see this topic reach 8 pages with people arguing over what resolution to use for 360 :D This cycle repeats itself every few months.


Do yourself a favor and just set your 360 to 720p though and never think about it again, or you will find yourself switching back in forth trying to find any differences when playing, and find yourself changing the setting every other day. 720p is the optimal resolution for most 360 games cause they are native 720. Then again, if 360 set to 1080i looks better on your TV, then by all means keep it on that.

here is a great post from another forum on the subject to help with your problem that helps explain.

"Personally, I think that the resulting image quality on any TV has to do with a few things:
(1) the native format of the source
(2) what is being sent into the display
(3) the display (and more importantly, its video processor)

Take, for example, my roommate's Dell LCD HDTV. That TV has a native resolution of 1280x720; LCD using progressive scan (since it started in computer monitors) would mean it's more receptive to delivering the best quality picture at 720p instead of 1080i.

This is true with the Xbox 360, as all 360 games are natively encoded in 720p on the disk. The internal scaler chip in the 360 is what then resamples it to fit whatever video output is chosen. Choosing 1080i on my Xbox 360 when connected to his Dell leads to really annoying blurring of on-screen text and a general 'fuzzy picture' that I didn't like. My gateway widescreen monitor (what I usually use) experiences the same thing when I use 1080i on it, but it's not nearly as pronounced as it is on his Dell.

However, watching DirecTV HD, the picture quality of content from the HD receiver to the TV looks better overall with 1080i. This is because DirecTV has its HD broadcasts (by default) @ 1080i, and therefore any other video mode is basically resampled within its scaler hardware to fit the output.

Finally, this leaves the display itself. Some displays are much better at handling interlaced resolutions than others. CRT's for example generally have no problem with interlaced resolutions. Some prefer that the source device rescale the feed for it... others displays look better when you let its internal video processor handle the output and let the source device feed it whatever is its native signal. Problem is, since the video processor itself is what basically translates your input to something the display can understand and the resulting picture, the only real way to remedy stuff like that is usually to find a better/different model TV that can better handle the content you're feeding it."

darklordjames
01-05-08, 05:49 PM
Your display is essentially a 720p panel, so feed it 720p when possible. Besides, why would you want to mangle the video by shoving it through the poor deinterlacers that Olevia TVs contain? Olevia panels are great budget displays, as long as you only feed them progressive signals.

formulanerd
01-05-08, 11:39 PM
Your display is essentially a 720p panel, so feed it 720p when possible. Besides, why would you want to mangle the video by shoving it through the poor deinterlacers that Olevia TVs contain? Olevia panels are great budget displays, as long as you only feed them progressive signals.

completely agree.... i'd feed it 480p before i'd feed it 1080i

bkchurch
01-05-08, 11:41 PM
completely agree.... i'd feed it 480p before i'd feed it 1080i

That's a gross exaggeration I hope, there's no way it de-interlaces that poorly is there?

darklordjames
01-06-08, 12:04 AM
That is not an exaggeration at all. The simple scalers in the display will stretch the relatively low resolution 480p better than it will treat 1080i. For 1080i it will either treat it as 540p and just dump each field to the screen as a full frame, or it will do a simple weave and scale where it weaves the interlaced fields together and scales them down. Weave works fine for anything film based, or that is a perfect 30fps, but for other framerates the image will be a blurry mess filled with feathering and general deinterlacing artifacts. The 540p option will make the image look like it's rapidly bobbing up and down and single line details will flicker in and out of existance. In the end, lazy scalers tend to look best in the following descending order: 1080p, 720p, 480p, 1080i, 480i. In some cases, 480i will even look better than 1080i. :)

formulanerd
01-06-08, 12:07 AM
darklord is correct, i have a westinghouse, which is gorgeous (esp at the price) with 1080p and 720p (dont feed much else to it) but anything interlaced is HORRIBLE. vizio and olevia perform fairly similarly.

bkchurch
01-06-08, 12:13 AM
That is not an exaggeration at all. The simple scalers in the display will stretch the relatively low resolution 480p better than it will treat 1080i. For 1080i it will either treat it as 540p and just dump each field to the screen as a full frame, or it will do a simple weave and scale where it weaves the interlaced fields together and scales them down. Weave works fine for anything film based, or that is a perfect 30fps, but for other framerates the image will be a blurry mess filled with feathering and general deinterlacing artifacts. The 540p option will make the image look like it's rapidly bobbing up and down and single line details will flicker in and out of existance. In the end, lazy scalers tend to look best in the following descending order: 1080p, 720p, 480p, 1080i, 480i. In some cases, 480i will even look better than 1080i. :)

Wow, didn't realize that. Not like I'd send my TV 1080i in the first place because it would be pretty pointless but that's pretty extreme that an SD signal would look better than an HD signal. Glad my Aqous de-interlaces well for the rare occasion it gets sent a 480i signal.

darklordjames
01-06-08, 12:22 AM
Additional: Be no means am I speaking badly of the original posters display! My comments come from personal experience with my Akai plasma. Beauitful Samsung glass, with really lazy scalers. It might sound funny, but I love those lazy scalers! On the minus side, interlaced signals look like crap. Solution, never feed it 480i or 1080i. :) On the plus side, there is no noticable input lag and I never have to deal with the "enhancements" commonly found in "better" scalers that really just make the picture look worse. Call me crazy, but I want to see the signal that my devices spit out, not the mangled interpretation of the signal that most displays show after their "processing and enhancement". This has made me to be rather loathe to upgrade. I want to move up to a 50" plasma with the superior newer Samsung, Pioneer or Panasonic glass, but I don't want the stupid "advanced" scalers that come with them.

bkchurch
01-06-08, 12:36 AM
Additional: Be no means am I speaking badly of the original posters display! My comments come from personal experience with my Akai plasma. Beauitful Samsung glass, with really lazy scalers. It might sound funny, but I love those lazy scalers! On the minus side, interlaced signals look like crap. Solution, never feed it 480i or 1080i. :) On the plus side, there is no noticable input lag and I never have to deal with the "enhancements" commonly found in "better" scalers that really just make the picture look worse. Call me crazy, but I want to see the signal that my devices spit out, not the mangled interpretation of the signal that most displays show after their "processing and enhancement". This has made me to be rather loathe to upgrade. I want to move up to a 50" plasma with the superior newer Samsung, Pioneer or Panasonic glass, but I don't want the stupid "advanced" scalers that come with them.

You can usually turn all the video enhancements off. I do on my 32" Aquos and it looks great (not CRT or plasma great but hey it's HD) and I don't notice any lag. I do like the noise reduction thing though, set to low on SD sources like my PS2 it does a nice job cleaning up some of the image noise. Of course it gets shut off on HD sources though because they come in crystal clear.

257Tony
01-06-08, 12:47 AM
You guys are missing the point I think, if the OP is using an HDMI equipped 360 then the optimal resolution for his display is neither 720p or 1080i, its 1360*768. His console should default to that when using the "optimal resolution" feature. The Olevias also have a 1:1 mapping feature on every input, so this is going to be his best option since the 360's scaler is clearly better that the ATI POS that Olevia uses.

game boy
01-06-08, 01:11 PM
exactly right..........my native resolution is 1366x768 and it is now showing in that and i have seen a difference. just like switching from 640 to 1024 on the computer. it looks cleaner and more vivid in detail. just a side note because im hooked hdmi i also chose the standard balck level any oppinions

bkchurch
01-06-08, 01:14 PM
exactly right..........my native resolution is 1366x768 and it is now showing in that and i have seen a difference. just like switching from 640 to 1024 on the computer. it looks cleaner and more vivid in detail. just a side note because im hooked hdmi i also chose the standard balck level any oppinions

You can output 1366x768 over HDMI? I thought that was a VGA only thing. How do I do this because I'd like my TV to get it's native res.

game boy
01-06-08, 02:15 PM
yes i did. just go to your blade that changes resolution and at the top you will see if you have hdmi connection that is, tabs for optimal resolution which will be your native screen or you can choose the other resolutions. then it will also have the black level tab as well.

bkchurch
01-06-08, 02:42 PM
yes i did. just go to your blade that changes resolution and at the top you will see if you have hdmi connection that is, tabs for optimal resolution which will be your native screen or you can choose the other resolutions. then it will also have the black level tab as well.

Sweet, thanks man. I thought that was VGA only, glad I can get my native res over HDMI. Now if only the PS3 would do this.