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copied!<p>In my experience, you need a graphics adapter with a bold enough driver to allow you to configure your timings <em>in the driver as well</em>. As far as I can tell, in Windows, your only option at the moment is to get a PC with integrated Intel graphics. And you have to pay attention to the driver: for anything up to 3x/4x series Extreme Graphics, get the Intel IEGD (and you'll have to roll a custom build of the IEGD before installing), or just the stock desktop/laptop HD Graphics driver for Nehalem+.</p> <p>I seem to recall that maybe Nvidia also allow you to specify the video mode timings by hand.</p> <p>I seem to recall that Matrox drivers do allow some tweaking, but if memory serves, stop exactly short of allowing you to enter the low-level resolution and timing values.</p> <p>And, speaking of EDID/DDC, your best bet is to get rid of it alltogether, by cutting the SDA/SCL lines (actually cutting just the SCL does the job too), which will allow you to force the driver to use a particular resolution.</p> <p>There are a number of pretty, nifty, low-power chipsets and SoC's (Geode, Vortex, Via Nano) - unfortunately, none of them allow you to specify the timings in Windows. Thus, you have to use the power-hungry Atom or above to get your hands on the timings :-(</p> <p>Note that any half-decent SVGA+ hardware is essentially perfectly capable of producing just about any thinkable resolution (maybe modulo 8) at any pixel clock you can come up with (limited by the synthesizer's and DAC's bandwidth, typically 200-400 MHz nowadays). It's the Windows drivers that impose a silly limit - they tend to stick to the standard set of typical DMT/CVT screen formats. Linux + Xwindows allow you to set any resolution and timing on pretty much any VGA hardware. I used to think of using a CRT output port as a fast three-channel generator of arbitrary signals, with up to 400 MHz of sampling rate @ 8bit resolution, and over a million samples worth of buffer space :-)</p>

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