1080i how?

O

oqvist

[H]F Junkie
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My HD ready display supports 1080i but only progressive modes seems to be available on my XP/8800 GTX setup.

Is there any way to output a 1900x1080i resolution to my LCD TV?
 
1. What LCD TV do you have?

2. How have you connected the LCD TV to your video card - HDMI, DVI, something else?
 
sony kdl 32v2000 or something similar. Connected through VGA. I get 1080i no problem on my consoles :)
 
That display has a resolution of 1,366x768. sooo... 720p. Just isn't enough pixels for 1920x1080.

You aren't actually seeing 1080 when you play the consoles, you are seeing 720p. It supports 1080i INPUT resolutions, but down converts everything to a 720p OUTPUT resolution.

Set your computer to 1366x768, that will give you the best result.
 
It looks like that display is 1366x768 I don't see how trying to input 1080i would benefit anything. Why not just output at the display's native resolution in progressive scan?
 
I know that I have a HD ready monitor... But pretty much every hd ready monitor supports 1080i including this one. So yes I have had it working at 1080i and it displays it at 1080i. Some movies does look better in 1080i and some in 720p.

So I guess noone found an application to enable these resolutions if the video card doesn´t find it?
 
afaik, i don't think video cards support interlaced output. I haven't checked recently, but maybe some of the newer driver support interlaced output.
 
Sorry... if an LCD is 1366 pixels wide and 768 pixels tall, its impossible for it to display any more then that. Common sense.

Like I said above, if you input a 1080i signal, its outputting 720p as anything higher is impossible...obviously.
 
obviously not it just can´t output 1900x1080 in progressive mode... interlaced means it alternates so it´s really 950/540 pixels it shows at a given time. So all the monitor have to support is 950/540 if I have done my math correctly
 
Hopefully someone else can "help you". You don't seem to be getting it.
 
ihaveworms is right your 1080i signal is being converted into a 720p signal. a 1080i still uses 1920x1080 pixels it just flashes the odds one frame and the evens the next if your tv is 1366x768 you cant do 1080i, 720p is better anyways imo
 
oqvist said:
obviously not it just can´t output 1900x1080 in progressive mode... interlaced means it alternates so it´s really 950/540 pixels it shows at a given time. So all the monitor have to support is 950/540 if I have done my math correctly
Click to expand...

I believe 1080i is more close to 1920x540 than 950x540.
 
Oqvist, the marketing info on the TV is lying to you:

Of note, a very popular panel size used in mid-range HDTVs is 1366 x 768; they are often advertised as 1080i "compatible" or "HD ready" - however these TVs, while accepting a 1080i signal will scale it down to the panel size of 1366x768 as they are physically incapable of displaying 1920x1080 resolutions.
Click to expand...

http://en.wikipedia.org/wiki/1080i

Original source of above info:
http://hd1080i.blogspot.com/2006/12/1080i-on-1366x768-resolution-problems.html
 
I have also see some video card outputting 30Hz when in 1080i and only going to 60hz for 1080p. Like everyone else has said, use the LCD's native resolution.
 
I see... Still Ratatouille Bluray is sharper at 1080i then using native resolution on my tv. I noticed the same phenomena often otherwise too... Sharper image but worse colours generally. So why is that even if it downsample to 720p. Maybe I am running 1920x540 on this particular monitor?

I trust my eyes though so I guess you can´t really give the advice that native is always better even if that is often the case. Especially for DVD but bluray it´s not that clear on PS 3 always :)
 
oqvist said:
I see... Still Ratatouille Bluray is sharper at 1080i then using native resolution on my tv. I noticed the same phenomena often otherwise too... Sharper image but worse colours generally. So why is that even if it downsample to 720p. Maybe I am running 1920x540 on this particular monitor?

I trust my eyes though so I guess you can´t really give the advice that native is always better even if that is often the case. Especially for DVD but bluray it´s not that clear on PS 3 always :)
Click to expand...

Maybe your TV downsamples better than your source device.
 
oqvist said:
I see... Still Ratatouille Bluray is sharper at 1080i then using native resolution on my tv. I noticed the same phenomena often otherwise too... Sharper image but worse colours generally. So why is that even if it downsample to 720p. Maybe I am running 1920x540 on this particular monitor?

I trust my eyes though so I guess you can´t really give the advice that native is always better even if that is often the case. Especially for DVD but bluray it´s not that clear on PS 3 always :)
Click to expand...

Well something is having to downscale the image. If you are playing the movie at 1080i, its your TV downscaling, if you play at 720p, its the bluray player downscaling. Your TV's built in scaler must be the better one.
 
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