1:1 pixel mapping from the source - PC / computer, poor detail or overscan

dejanribic · Post by **dejanribic** » Tue Aug 24, 2010 4:13 pm

Hey guys. So I bought the 47" LG 47LD420 TV yesterday. Its huge, awesome etc.

One huge problem though.

Ive got it hooked up to my GPU via DVI->HDMI.
Windows recognized it no problem, set the res. to its native 1080p.
Trouble is its having problems with the ress for some reason. I can't explain the problem without showing you, so here are some pictures.

This is what a straight (holding down SHIFT) diagonal line looks like in paint:

[img]http://i29.photobucket.com/albums/c267/dejanribic/IMG_0234.jpg[/img]

[img]http://i29.photobucket.com/albums/c267/dejanribic/IMG_0233.jpg[/img]

Vertical and horizontal are fine:

[img]http://i29.photobucket.com/albums/c267/dejanribic/IMG_0235.jpg[/img]

All of this crap goes away with 1776 x 1000, but I bought a FULL HD 1080p TV so I can watch 1920x1080 so I hope you can understand why this is frustrating. I've messed with the TVs settings a LOT and cant seem to figure this out. :/

I used paint because thats what most dramatically displays what happens. Im no expert but I CAN notice it in everything else as well. Almost ALL text is choppy (in games, under icons etc.), looks horrifying. Movies etc. not so bad because things are usually in motion but I can still see it. NEED a solution.

Please assist.

Thanks in advance!

dejanribic · Post by **dejanribic** » Wed Aug 25, 2010 8:08 am

Some ppl said to try 1:1 pixel mapping mode (Just Scan). That fixed it. New problem though -.- The image is not spread over the whole viewing surface (screen). Its 3cm from the side edges and 2cm from the top.

dejanribic · Post by **dejanribic** » Wed Aug 25, 2010 9:05 am

Fixed. Friggin' ATI Cataclyst Control Center was by default underscanning by 5% -.-
Perfect now. Thanks!

Richard · Post by **Richard** » Fri Aug 27, 2010 8:02 pm

Welcome to 1:1 pixel mapping and 0 overscan. This has to be set using the aspect ratio or format control of the display and with consumer sources that is typically the end of it. PC sources can be complicated and as you discovered, the PC was not sending out a 1:1 pixel map for 1920x1080. Congrats on figuring that one out!