PC Peripherals what is 1:1 pixel matching

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armaan

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and how does it help in connecting the pc to the hdtv
thanks in advance for taking out your valuable time in answering my query
 
All HDTVs scale the incoming signal in 'HD' mode. Reverting to 1:1 basically displays the signal on the screen at the native HDTV resolution, this usually leads to a slightly sharper image in desktop mode (gaming/movies are not affected significantly, IME).
 
so does it basically means there wont be any overscanning nor underscanning of any output source like pc if 1:1 matching feature is present
 
It just means it will display as per the PCs output. If you display a 800x600 signal, it will show it with a black border. Underscan/overscan will be controlled by the PCs display card.

For example, my Philips LCD when connected to an ATI output in PC mode, displays a small black border around the picture in native resolution. This is because ATI underscans by default, assuming (incorrectly) that HDTVs will overscan. This has to be manually corrected - 1:1 does not eliminate the need for changing the scan settings at all times. It is not required with nVidia output though...
 
to sum it up guys assume ive got a gfx with hdmi out and i set the resolution to 1920 x 1080 same as that of the tv this eliminates any chances of black borders irrespective of 1:1 pixel mapping.

or in other words irrespective of the resolution of the gfx ,when it is connected to a tv with 1:1 automatically the tv re-adjusts the resolution of the gfx to that of the tv
phew thats quite a mouthful

i hope im right this is quite complicated stuff.
 
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