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I have 32 bit 12.04 and my video card drivers are up to date at "304.64" yet my resolution appears capped at 1920x1080. I am trying to get the resolution to 2560x1440 or even higher, as I am running this machine on a 42" LCD through HDMI and the 1920x1080 resolution will not stretch to fit the screen and is therefore fairly zoomed in.

The 9600 GSO supports up to 2560x1600, so this should be no problem for the card itself.

I have tried using xrandr, which successfully creates the 2560x1440 60 hertz mode but does not allow me to --addmode or --output it in. I have tried working with the xorg.conf, but I actually can not find a way to create the file since when I try to, I am given an error message stating that the # of monitors I have does not match the # of screens I have.

Can anyone provide some help or insight?

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similar question, can't set resolution higher than 1280x1024, also could not read edid information, frustrated. –  Teifi Nov 20 '12 at 6:54

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