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Is four enough?
bleargh:
--- Quote from: ark_ader on January 20, 2012, 06:13:47 pm ---Thanks for the link. That is exactly what I have been looking for. :cheers:
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No problem. Pisses me off to no end when I go into any tech store or hardware store and see them charging $0.50 or $1 a piece for velcro straps, when these things are less than half that price and grip/stick far better than those fluffy looking ones.
That said, though... its a dangerous event when the Lee Valley catalog arrives at the house... there's always something I see in the catalog where I'm like "WOW... I can find a use for that..." Between my wife, her dad, and myself, the Lee Valley catalog always ends up with dog-eared pages and circles drawn throughout it for stuff we find that's cool and want to get.
MonMotha:
--- Quote from: ark_ader on January 20, 2012, 08:27:19 am ---Yes. Garden Variety Nvidia PCIe with dual head VGA/DVI with adapter and a PCI Nvidia 8400GS. Works with Windows 7 and XP. Matrox triple headed card.
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While the Matrox cards do have awesome quality output, they're seriously lacking in the 3D department. I was mostly wondering if anybody knew of a DisplayPort to VGA dongle that's actually decent. Most of them seem built purely for cost, with correspondingly low quality at high resolutions, and the reviews are worthless since most people are just buying them to hook up their ancient 1024x768 blurry LCD.
I've found your typical nVidia/ATi stuff to also have somewhat lacking analog outputs. Laptops are generally far worse than the desktop cards. I'm guessing it's overly aggressive EMC control components on the laptops, but they may just use a cheap DAC thinking you're only ever driving a low end projector with it. Even fairly good desktop cards vary a lot in quality. Defeating the ferrites or similar EMC components on the ouputs can help (and I'm sure break the FCC certification, but I don't care). I've yet to find one that can really keep up with 1920x1200@95Hz. I suspect they're thinking most people are using DVI/HDMI/DP these days, which is probably not a terrible assumption, and good analog outputs cost money.
ark_ader:
--- Quote from: MonMotha on January 20, 2012, 09:54:31 pm ---
--- Quote from: ark_ader on January 20, 2012, 08:27:19 am ---Yes. Garden Variety Nvidia PCIe with dual head VGA/DVI with adapter and a PCI Nvidia 8400GS. Works with Windows 7 and XP. Matrox triple headed card.
--- End quote ---
While the Matrox cards do have awesome quality output, they're seriously lacking in the 3D department. I was mostly wondering if anybody knew of a DisplayPort to VGA dongle that's actually decent. Most of them seem built purely for cost, with correspondingly low quality at high resolutions, and the reviews are worthless since most people are just buying them to hook up their ancient 1024x768 blurry LCD.
I've found your typical nVidia/ATi stuff to also have somewhat lacking analog outputs. Laptops are generally far worse than the desktop cards. I'm guessing it's overly aggressive EMC control components on the laptops, but they may just use a cheap DAC thinking you're only ever driving a low end projector with it. Even fairly good desktop cards vary a lot in quality. Defeating the ferrites or similar EMC components on the ouputs can help (and I'm sure break the FCC certification, but I don't care). I've yet to find one that can really keep up with 1920x1200@95Hz. I suspect they're thinking most people are using DVI/HDMI/DP these days, which is probably not a terrible assumption, and good analog outputs cost money.
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Startech dp2vga.
Still going strong :applaud:
MonMotha:
What resolution and refresh are you running it at? I'm not sure many people understand just how hard it is to push 1920x1200 at 95Hz with good, sharp edges to make small fonts look good. 1920x1200 is already a rather high resolution, and 95Hz results in a pixel clock more than 50% faster than your typical 60Hz refresh rate. You're talking bandwidths of 500MHz+ for a good, sharp white-to-black or vice-versa transition.
I can get even 1920x1200 at 60Hz out of most things and have it look decent, but very few sources I have look good at 95Hz. Even finding a cable that can handle that is tough. Mini-coax is mandatory, and using controlled impedance BNC connectors instead of an HD15 can make a surprising difference.
ark_ader:
--- Quote from: MonMotha on January 21, 2012, 05:38:51 am ---What resolution and refresh are you running it at? I'm not sure many people understand just how hard it is to push 1920x1200 at 95Hz with good, sharp edges to make small fonts look good. 1920x1200 is already a rather high resolution, and 95Hz results in a pixel clock more than 50% faster than your typical 60Hz refresh rate. You're talking bandwidths of 500MHz+ for a good, sharp white-to-black or vice-versa transition.
I can get even 1920x1200 at 60Hz out of most things and have it look decent, but very few sources I have look good at 95Hz. Even finding a cable that can handle that is tough. Mini-coax is mandatory, and using controlled impedance BNC connectors instead of an HD15 can make a surprising difference.
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I do not think that this adapter will suit your needs. This is a simple low cost solution that works for monitors as a standard display. Anything freaky like you are suggesting will cost you. I know the setup you are referring to, and I used to have Vewsonic Multi-Sync monitors myself with VGA to BNC, and yes they did look good. My eyesight isn't as good as it was 15 years ago and my expectations are much lower so this DP2VGA does the job, at £20 too.
I found this of interest
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