Dual monitor configuration on Intel Ivy Bridge

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http://unix.stackexchange.com – I'm trying to set up a dual monitor machine with an Intel DH67BL monitor, Ivy Bridge i5-3450 CPU and dual Samsung 204b monitors. I cant seem to get the computer to recognize more than one of these monitors at a time. I can get either monitor to work using the DVI port directly or with a DVI-VGA cable, or by using the HDMI port with an HDMI-DVI cable. I managed to sort of get them working by substituting 2 smaller monitors and hot-plugging to the 204b's, but this locked me into an appallingly low resolution, and broke as soon as I tried adjusting the resolution. KDE's display settings only (HowTos)