I have a Samsung 42 inch Plasma which I have been using as the second monitor for some time now. I run nvidia Graphics card with two DVI ports. The plasma has a VGA port and HDMI.
I have up until now been using the VGA port with a DVI/VGA converter to connect with the graphics card using the analog pins in the DVI convertor; this works fine only the horizontal pixels are stretched to 16:9. With this analog setup I was unable to use the option within the Nvidia control panel to ‘scale the flat panel’. The stretched image was starting to annoy me so I decided to try HDMI>DVI. The option to scale the stretched image was available and I could get the desired resolution but the picture quality was very very poor. The only time that the quality looked ok on the plasma was when I had it set to unscaled and the lowest possible resolution (which looks plain stupid to be quite frank)
I have tried a program (which I have since forgotten the name) to resize the pixels when using analog but I was unable to get anywhere with this.I saw this post previously http://superuser.com/questions/33867/dvi-to-hdmi-cable-problem and do not believe it to be a cable problem as I have tried two different cables with the same result. I have since reverted to VGA.
Could this just be the resizing of the pixels causing problems? Or just the compatability of the TV..? Does anyone have suggestions? I either want to resize the analog or get the HDMI/DVI working at a reasonable quality.