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Trying to use HD tv for a monitor

post #1 of 13
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Hi guys I have a 26" Sharp Aquos TV here and I want to play around with it on my computer. I cannot get the picture to look that great. This is a 720P and I have tried the 1366x768 res, but it gives me a ghosting effect around everything and the colors don't look that great. When I try to go to 1080i the picture just kinda shakes and looks worse. Can anyone help me? I'm using a DVI to HDMI cable. And I have tried the Nvidia control panel
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post #2 of 13
Well thats not that good of a resolution for that size also what is the response time ex.. 5ms 8Ms??12ms is the tv a 1080p tv?? if not you will not be able to have the resolution 1920x1080. which is 1080p.
    
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post #3 of 13
Did you try adjusting the resolution on the computer, TV, or both?
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post #4 of 13
You said the TV is 720p. So the 720p res would be 1280x720. but the native resolution of the TV would probably be around 1280x768ish (correct me if i'm wrong, and maybe post the model number so i can help find out)

With my "not so goodish" Samsung, i can't connect a computer to the HDMI in. It has to be through VGA. And the solutions i get are 1280x720 (720p, but a little bit "clouded" if you know what i mean) and 1280x768 (native and crisp like on my dell 1704fpt w/ dvi in)

You might also try and see what happens when you hook up through vga cable (if the TV has a vga in)

When i was messing with component from my GPU to my tv, i had problems like you. it wouldn't fill the screen, or it would over fill the screen. Very jumpy too. and any resolution over 1280x768, the screen would be jumpy and ghosty. (very weird)

It could be your TV can't handle computer in (and that the GPU can't force the correct tv mode)
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by ElMikeTheMike View Post
Did you try adjusting the resolution on the computer, TV, or both?
How do you go about changing the res on a TV? mabye that is what i'm missing.....

But it can do 1080i, but like I said the picture vibrates and everything is extremely small.

I'm trying to find a response time on this tv, but the manual isn't helping much.
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post #6 of 13
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Quote:
Originally Posted by stumped View Post
You said the TV is 720p. So the 720p res would be 1280x720. but the native resolution of the TV would probably be around 1280x768ish (correct me if i'm wrong, and maybe post the model number so i can help find out)

With my "not so goodish" Samsung, i can't connect a computer to the HDMI in. It has to be through VGA. And the solutions i get are 1280x720 (720p, but a little bit "clouded" if you know what i mean) and 1280x768 (native and crisp like on my dell 1704fpt w/ dvi in)

You might also try and see what happens when you hook up through vga cable (if the TV has a vga in)

When i was messing with component from my GPU to my tv, i had problems like you. it wouldn't fill the screen, or it would over fill the screen. Very jumpy too. and any resolution over 1280x768, the screen would be jumpy and ghosty. (very weird)

It could be your TV can't handle computer in (and that the GPU can't force the correct tv mode)
1280x768 didn't work well .

I found in the manual it says 1366x768 is the correct res then it says x3. what does the 3 mean?

model number is LC-26d40u
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post #7 of 13
this is the only thing i could find about connecting your TV to a computer
Sounds like your kinda in my boat (as far as HDMI is concerned)
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by stumped View Post
this is the only thing i could find about connecting your TV to a computer
Sounds like your kinda in my boat (as far as HDMI is concerned)
ohh well, I guess this 19" will have to do for now.....
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post #9 of 13
You tried connecting the two, extending the display, setting the tv display (in windows to keep things easy) to 1280x720 at 60hz? That should get you 720p
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post #10 of 13
Quote:
Originally Posted by Jeffmizrahi View Post
Well thats not that good of a resolution for that size also what is the response time ex.. 5ms 8Ms??12ms is the tv a 1080p tv?? if not you will not be able to have the resolution 1920x1080. which is 1080p.
The way the TV scans (interlaced or progressive) has nothing whatsoever to do with the resolution, nor does the response time. Your homework for tonight is to learn what it is you are talking about before you post, ok?

To the OP, do not use the Nvidia control panel for anything at all. In fact, uninstall it immediately upon reading this. I'll wait.

Uninstalled? Good.

Now install a program called PowerStrip to handle the slight tweaks that may be necessary to get the resolution and refresh rate exactly right. This is due to most televisions (especially low-end ones) not being optimized to handle the graphics output of a PC correctly. All TVs are different so you will have to play around with it for awhile to get it perfect.

Good luck, and here's a shot of my 42" 1080p LG running Windows. I eventually used PowerStrip to get the visible area corrected inside the parameters of the TV.
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