Thought 1080i/p TVs can display at 1920 x 1080 Resolution

Schizophonic

Schizophonic

Schizophonic

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Built my uncle a HTPC hoping it would be the same as a normal rig.

It had a mobo with HDMI output. Setup the OS last night and connected it onto my Sony 40" LCD which can do 1080.

When i put the resolution up to 1920x1080. It looked at fuzzy and not very clear. It was only when I lowered it and put it down to 1024 x 768 (??? i think) that it looked reasonable.

I brought it over to his house to a Samsung 42" and again it looked fuzzy.

I'm in a spot of bother now, i'm hoping to get myself a 42" Panny to go into my new house and want to build a HTPC myself. If i can't resolve this issue or find a fix, it might not be worth it.

Any ideas what to do?
 
It depends if your Sony is 1080i, that means it's true resolution is 1360x768. If it's true 1080p (which I suspect it is), try playing around with the pixel format of your gfx chip in it's control panel. It should be crystal clear, especially as it's an LCD tv, as my plasma is as clear as any dedicated monitor at 1080p. Good luck finding out the problem.
 
If your motherboard has an onboard Radeon chip, try using an HDMI cable if it's supported, and try the different pixel formats in the HDTV control center settings under the DTV tab. If it's any other onboard gfx i'm not sure you can do anything about it.
 
1920x1080 will look odd on a TV that doesn't support it. (if it'll even accept that signal from a PC) 1080p on my 1366x768 plasma doesn't even fill the screen properly.

Are your 360/PS3 set to 1080i or p?
 
R34pz said:
It depends if your Sony is 1080i, that means it's true resolution is 1360x768. If it's true 1080p (which I suspect it is), try playing around with the pixel format of your gfx chip in it's control panel. It should be crystal clear, especially as it's an LCD tv, as my plasma is as clear as any dedicated monitor at 1080p. Good luck finding out the problem.
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No it doesn't. Since when did 1080i = 1360x768?
 
try a different connection method ...if you're using vga then try hdmi.
but as has been pointed out it maybe 1080i which isnt as good as 1080p
 
probedb said:
No it doesn't. Since when did 1080i = 1360x768?
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it doesnt, but thats the most likely resolution a non-1080p, 1080i-supporting tv will be. since 1080i isnt a physical resolution, it has to be something lower. 9/10 sets out there that arent 1080p are 720p, 9/10 of those are actually 1366x768 in resolution.
 
What I meant probedb is that 1360x768 would be the resolution that a pc would display it at, obviously the screen is actually 1366 but it would leave 3 empty pixels either side. Not that that is it's true resolution, but it's closest pc match. It would not display at 1080 on a pc as it would be upscaled and look awful.
 
R34pz said:
What I meant probedb is that 1360x768 would be the resolution that a pc would display it at, obviously the screen is actually 1366 but it would leave 3 empty pixels either side. Not that that is it's true resolution, but it's closest pc match.
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no, that is its true resolution. 720p tv's are a peeve of mine - they arent actually 720p.
 
You need to set the PC resolution to the native resolution of your TV (same as with any LCD panel). Either check the manual, or post the model number as requested earlier and somebody will search the internet for you and find out. Although your screen can accept 1080P, it will only display at the resolution it supports which may not be 1920x1080.

You will also need to set the aspect ratio on the TV to 'dot-by-dot' mode, or whatever Sony's version of that mode is - this will remove any overscan.

Overscan and downscaling will have a detrimental effect on all image quality, although on text it's most noticeable.
 
Generally you would say a TV supports resolutions i.e. 720p, 1080i, 1080p etc rather than it being 720p etc. I believe it's manufacturers that have caused the confusion.

My first LCD supported upto 1080i over component but it's native res was 1280x720. One TV I have is 1366x768 and supports upto 1080p, same as my plasma which is 1024x720 and also supports 1080p.

Schizophonic, we need more info on your TV in order to better help you :)

http://en.wikipedia.org/wiki/HD_ready
 
Right sorry for the late reply. Its a Sony KDL40V2000.

It know its a Full HD not 'HD accepted' TV. I used HDMI cable coming out from a Gigabyte GA-73PVM-S2H. Do you need more information?
 
Schizophonic said:
Right sorry for the late reply. Its a Sony KDL40V2000.

It know its a Full HD not 'HD accepted' TV. I used HDMI cable coming out from a Gigabyte GA-73PVM-S2H. Do you need more information?
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Its native resolution is 1366x768, which means it's not FullHD 1080p. You need to set the resolution on your HTPC to 1366x768 to get the best picture.
 
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a quick google confirms it
As you'd expect, the 40V2000 also hits the specification targets required by the industry's HD Ready standard, adding to its HDMI and component connections an HD-friendly native resolution of 1,366x768 pixels and compatibility with the 1080i and 720p formats. It can't take the more advanced 1080p resolution
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It can't take the more advanced 1080p resolution
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It's this kind of inaccurate stuff that muddys the water (not you Amnesia, wherever the quote's from).

The OPs TV can 'handle' 1080P, as in display it, it just has to downscale the video to a lower resolution.
 
Hmmm, say your right. Well the 3 clicks i did on google did all produce the same result.

But when i switch on the xbox or PS3 it display 1080 on the top left hand side. Kinda misleading isn't it?
 
Schizophonic said:
Hmmm, say your right. Well the 3 clicks i did on google did all produce the same result.

But when i switch on the xbox or PS3 it display 1080 on the top left hand side. Kinda misleading isn't it?
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Yes, 1080i

Full HD is 1080p
 
Schizophonic said:
Hmmm, say your right. Well the 3 clicks i did on google did all produce the same result.

But when i switch on the xbox or PS3 it display 1080 on the top left hand side. Kinda misleading isn't it?
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That is just the TV displaying the input resolution. The output resolution is always going to be native resolution of the screen so there is little point displaying it as it is fixed at 1366x768.
If the input is not exactly the same and "dot by dot" mode turned on, then it will be scaled.
 
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