I am using a 32 inch LCD TV as a PC monitor. And I have NVIDIA GeForce 8400 GS graphics card.

But unfortunately the highest resolution offered in my display settings is 1360x768.

I want to know whats the reason. I suspect the following 3:

1. Limitation of LCD TV
2. Limitation of Graphics Card
3. Limitation of Driver Software / some settings fine-tuning

I wish to have much higher resolution than 1360x768.

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7 Answers

The answer is fairly simple, but not always easy to explain. The highest resolution your TV supports is 720p (1360x768). Your video card (great card, card is not an issue) can support much higher resolutions, but has detected the highest resolution of your TV and therefore limited the settings to 1360x768, which is the best resolution your TV can display perfectly.

Anything higher would NOT make the picture better (since the number of pixels is limited by the TV hardware / screen) but it could (and would) make it worse since a resolution that is not an exact multiple of the hardware resolution would force a conversion that would sacrifice clarity for completeness.

Imagine trying to display a picture of the letter "T" with only 4 pixels. You would either wind up with two black on top and two white on bottom, or four black, or three black and one white. In any case, the "T" would not look like a "T", and would instead look like a dash or a square or an upside down "L". You could, however, display a "T" easily with 9 pixels (three black across the top row, one black in the middle position in the second row, and one black in the middle position in the third row).

As you increase the resolution, items on the screen get smaller, so the "T" would eventually get so small that there would only be 4 pixels trying to display it, resulting in an unreadable letter. Now imagine that with a face in a crowd, or the detail of a photo. Things start to look worse, not better, as the resolution increases beyond what the hardware can support.

My advice to you is to either stick with 1360x768, which is the absolute best your TV can do based on the laws of physics, or get a monitor or TV that can support a higher resolution.

LCDs generally tend to best run at a fixed resolution - which is the native resolution of the screen, and 1360x786 is a common one for '720P' screens. As long as your video card and system detected it properly, that should be the native resolution for the screen in question.

Video cards easily handle 1920x1080 or full HD, so with the latest drivers, your graphics card and driver shouldn't be the issue.

If its a full HD screen, playing around with your connection methods (HDMI is best, failing which DVI failing which VGA and so on) might help

5

You didn't mentioned what is your native screen resolution but when you use a digital screen it's usually the first suspect on your list. But my new flat screen also offered a higher virtual resolution thus it can be also a driver problem. The Geforce 8400 GS should go much higher. I think it depends on how much video ram it has. You can use Powerstrip to control that. Maybe you can use Powerstrip to unlock higher resolution.

2

Some LCD TVs publish sub-standard resolution over VGA and HDMI You can make custom resolution with nvidia driver, or use one offered by windows. e,g my philips HD TV shows 1280x600 as default, when it works just fine with 1360x768 but on the box it has 1366x768 in which case it gets resized with desktop sides out of screen... It is just trial and error...

Tricks might help you.

Check the resolution of your tv.

For example,

in My xenon 32 inch TV is 1080p @60hz(hertz). How did I know? I press DISPLAY at the remote control. It shows on tv.

Go to your pc/laptop on desktop, right click choose Intel Graphics Design>Display

Make sure the resolution and hertz indicated is right if not you can change.

In my case, it shows 59p Hz. So i changed it to 60p Hz.

Then in your TV's remote control, press ASPECT. You may choose options : 16:9. or Just scan or zoom1 or Zoom2

Depends on your tv. Choose the right one that fits.
On my TV, I choose JUST SCAN.

If you're using HMDI for a connection I suggest you change to VGA (or use DVI to VGA converter if your GPU doesn't have VGA port).

As long as you're using HMDI it won't give you the desired results. Your 32" TV will be treated as a small monitor.

I have smart philips tv 32 inch as monitor, you must find modus to change refresh rate above standard 60 Hz (it depence of grafic card) in my case I change it to 80 Hz refresh rate and resolution

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