How to enable 1920 x 1200 resolution for VGA?

I know this is an old post but I just stumbled upon it so thought I'd pass on some knowledge. Not all vga cables have all the cores in them. Some of them don't have the cores which cary the EDID signal from the display to the computer. This prevents the computer knowing how it can display so it defaults to basic resolutions and timings.

The VGA standard cable has no limit resolution, but a longer cable will catch more noise until a point where it limits the resolution.

So the only thing that limits the resolution is the bandwidth that the cable is able to transfer, if the cable is unable to transfer enought bandwidth to make a complete 1920x1200 screen, the only thing that you can do is buy a better quality cable or use a shorter one.

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