1:1 pixel mapping and overscan?

[mcfstep]

I've posted a number of threads recently regarding my computer upgrade, in terms of what parts will work together and whether I should use Vista ultimate or Xp..

I went with Vista ultimate and I've just been trying it on my hdtv via hdmi and I've noticed that desktop doesn't fit properly to the screen and I can remember a friend having a similar problem which was resolved by setting up 1:1 pixel mapping or something along those lines?

Can anyone give me more information on this and how to set it up?

Thanks!

[kalniel]

Just set the desktop resolution to be the same as the native resolution of the TV and it'll use 1:1 mapping via HMDI.

[mcfstep]

I use my hdtv as a second display and normally have it display at 1360x768 or 1920x1080i but neither looks quite right. I tried resizing the desktop using the nvidia control panel which I think is the right place to be in but I never got the moving sliders which would allow me to change it.

Could this be because I don't have the hdtv as a single dislay but rather as a second?

[kalniel]

I'm afraid I don't have experience with Vista - on XP it's just right clicking on the desktop then going properties and then to settings.

It could be the dual monitor thing messing it up - is the second monitor set to clone the first, or is it an extension?

[mcfstep]

The 2nd is an extension. As you say its very simple on XP and it's never been a prolem however I think it's something related to Vista - not a bug or anything, simply a setting that I need to adjust.

[scrandman]

It also depends on the TV. Some Samsungs (mine included) instruct you to connect a PC up using a DSUB cable because they cannot display @ 1:1 using an HDMI cable resulting in a desktop that is larger than the screen.

[roorooroo]

My AOC is the same..my screen suffers from overscan via DVI-HDMI cable.

[mcfstep]

That must be it. I use a dvi to hdmi cable and if I have the hdtv as the only display it suffers from overscan and I cannot adjust the desktop to fit the screen.

Ah well... It's strange how it's not a problem with XP but it is with Vista...

[roorooroo]

If by any chance you use vista media center i have found the way around the overscan problem is to choose television instead of flat panel when you go through the media center setup procedure.

center(centre)

[Skinleech]

The newer revision of the Nvidia drivers have very poor options when it comes to adjusting your desktop res. I've tried using them on my HDTV (DVI-HDMI connection) and have only succeeded in blurring the picture somewhat.

I had heard somewhere that they were going to look at the options and try to improve them in letr revisions.

[mcfstep]

I have managed to adjust a few settings to get the picture almost right. At 1360x768 I can now get a decent picture but I lose about half a cm of screen on the left hand side of the screen - which to be honest I'm not going to lose sleep over!