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Archive for the 'Computer Industry' Category

Build this monitor and laptop

Saturday, February 10th, 2007

Want a 2048 x 1536 monitor? They sell the medical monitors at eizo.com

Try to drive it with a laptop though. If you have a laptop, it likely has an analog VGA cable. The 17″ Mac has 256 MB vram and a mini DVI. I asked sales at Eizo if they pair up seeing as they drive their monitor with a DVI-2. Dell has the video card, but not the dvi plug. There’s a PCI card and dongle to drive a couple more monitors, but they top out at 1920×1200 per monitor. I saw mention that Lenovo has a DVI on it’s Thinkpad, but I couldn’t confirm it in the specs or in the picture or on their sales support.

I don’t want to go all the way to the 30″ apple monitor. I am thinking there is room for a 16:9 monitor at 3 megapixels. What should the resolution be? We know we can drive 2048×1536 (at analog VGA speeds) on a regular laptop, even the Toshiba Portege. So what 16:9 can we fit in that? 2360×1328 is 3134080 pixels which is less than 3145728 pixels in the 2048×1536. That gives us a near perfect 16:9 to four nines at 1.777 ratio.

Can we do better? Yes. 2368 is divisible by 32 which is true of the long dimensions of our favorite resolutions {640, 800, 1024, 1280, 1440, 1600, 1920, and 2048}. But what about the memory management? They chose 2048*1536 because it is a multiple of 1024*1024. They were trying to get inside 3*220 or 3 MB which is 3 * 1048576. And if we divide that by 2368, we get 1328 with .43 of a column of pixels to spare. A little wider than 16×9, but what’s so magical about 16:9? The Golden Square is 1.618 anyway if we want to be classical. Let’s optimize instead!

If you want a Golden Square and long dimension divisible by 32 and stay in 3 MB, you have to choose between 2272×1384 (1.641) and 2240×1404 (1.595). They bracket the Golden Square ratio almost in half (divisible by 16 anyone? 2256 x 1394 just like fire wire), but 2240×1404 only leaves over 1/3 of a column of pixels so I prefer that vs. 4/7.

So build me a cinematic display at one of these resolutions, build me a laptop with a 256 MB card to drive it at 75 Hz, a port to get to the monitor and a video driver to drive it.

In 1992, I got so disgusted with my monitor’s native flicker that I installed Linux and wrote my own video driver for it, ultimately settling for 1152×720 (1.6 aspect ratio anticipating by a few years a VESA standard resolution) which was just the right number of pixels so my 386SX20 could refresh at a 72-75 Hz speed so I wouldn’t see the flicker. Without that sensitivity to flicker, I might be much more shy about optimizing and programming projects. I might be more trusting in big corporate technology machinations. 15 years later we are ready for the (almost-)quad version of VESA 361. Lay it on me. $4000 is a smaller share of my income now than the hundreds of dollars to get a 15″ CRT was then. Hit me with it. I will bet you $100 it will be mainstream in 5 years. 1920×1200 is so yesterday’s news–1200 scan lines is part of the 1994 VESA standards to be precise.

HP bought VoodooPC

Monday, October 16th, 2006

You might have missed that HP bought VoodooPC and Dell bought AlienWare. Folks are noticing that gaming PCs are moving the state of the art, that people are super rich and that they have no trouble dropping thousands annually on PCs. Why not? If one spends hundreds of entertainment hours in front of a PC, why not spend 15% of leisure spend on it? For families in the top ten percent of earners, that might be $10,000/year. How long until the $500,000 gaming supercomputer?