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High Resolution DVI Support for Plasma Displays?

spongman asks: "I'm trying to find the best way to connect a computer to a 50" (or larger) plasma display. The display I'm currently looking at is the NEC 50MP2 because its native resolution (1366x768) is high enough to meet my needs and it can display a 16:9 image with square pixels without scaling, but I'm open to suggestions for similarly-capable displays. I also want to use a DVI connection between the computer and the display to reduce interference and noise. The problem I'm having is that I can't work out which video cards support this resolution (or something near it) over a DVI connection. The only card I've found that seems to support this is the PixelPerfect from Imagine Graphics in the UK, but it's based on somewhat old technology (Kyro2) and I'd like a few more choices if possible. Does anyone have experience getting their video card connected to a plasma display over DVI at native resolution?"

43 of 146 comments (clear)

  1. Purpose? by saintlupus · · Score: 3, Insightful

    I suppose which card would be good depends on what the purpose of this is -- specifically, are you going to need killer 3D performance out of this display, or is it going to be a home theatre PC sort of setup?

    You might want to take a look at the Matrox cards if you don't need stunning 3d - my G450 supports a wide range of high resolutions, and it is available with DVI-out.

    --saint

    1. Re:Purpose? by funky+womble · · Score: 3, Informative
      If you use the Matrox Technical Support Tweak Utility you can choose the horizontal resolution in steps of 8 pixels and the vertical in steps of 2 pixels. Unfortunately 1366 isn't on the list, the nearest choice is 1368 (though PowerStrip does no better, it has the exact same choice of resolutions with the G450: I wonder if the list changes for different cards though).

      (Not quite what's asked for here, but worth a mention anyway: the dual-head 'DVDMax' output in the Matrox Windows drivers, which displays a video overlay full-screen on a second monitor, is absolutely excellent, and works with the video window in the background: quite useful for displaying video on a larger monitor while using a smaller one to operate the computer, which is ideal for certain residents of Betelgeuse 5).

    2. Re:Purpose? by rew · · Score: 2

      Unfortunately 1366 isn't on the list, the nearest choice is 1368

      That's a hardware issue. This same hardware issue most likely applies to the screen though. Thus the screen he's looking at is most likely 1368 or 1384 pixels wide...

      Oh, and it is no problem if you tell the computer to display two pixels more than fit on the screen. It's not like you'll suddenly get horribly bad quality or something...

      Roger.

  2. Huh? by cascino · · Score: 3, Funny

    from the displays-of-insane-resolution dept.
    ...because its native resolution (1366x768) is high enough to meet my needs...
    Huh? Insane?

    1. Re:Huh? by SuperRob · · Score: 2

      I think here, "insane" is to interpreted as "not used by ANYONE".

    2. Re:Huh? by Jeff+DeMaagd · · Score: 2

      I think a lot of widescreen video projectors and plasma displays use resolutions in that general area.

      It isn't "standard" such that you'd normally see it as an offered option on most computers, as mentioned elsewhere, you can get the video software called Powerstrip to customize your resolution.

    3. Re:Huh? by MonkeyBoy · · Score: 2

      I think the insane part comes in paying that much for a what amounts to a 50-inch computer display -- not just due to the cost, of course, but that in combination with a maximum resolution being THAT LOW.

      I'm pretty sure 1366x768 on a 50" monitor would look very close to 640x480 on a 21" monitor. Granted you can fit more n a 1366x768 display, but, for chrissake, I run at 1280x1024 and STILL get cramped for room when trying to get something meaningful done.

      But, by the same token, I know some vision-challenged individuals (in dire need of new glasses, I must add) who routinely run 640x480 on 21" monitors. This is the same group of people who put forth a nonstop litany of complaints about UI being too big and fonts being too small (!!) based on whatever it is they're doing (or trying to do, at least).

      --

      Moof!

  3. Re:hmm.. by ergo98 · · Score: 2, Informative

    A 50" CRT? I don't believe such a thing is even made, and if it were the weight would be monstrous, not to mention that it'd be huge not only diagonally, but depthwise, consuming a huge portion of the room.

    Plasma screens, on the other hand, can be made 3.8" deep, and the power consumption (and hence heat dissipation) of plasma (& LCD) screens is dramatically lowered. Most LCDs and Plasma offer much better contrast than CRTs, and the only real critique of them is ghosting in some lower cost models, but that's mostly a complaint of yesteryear.

  4. Similar Dilemma by raiyu · · Score: 3, Informative

    I had a similar problem when I originally got my SGI 1600sw flat panel LCD a few years back. It ran at 1600x1024 native, and to accomodate this unstandard (at the time) resolution, you were forced into using one of their "pre-approved" graphics cards. At the time they were fairly decent, but eventually they got old, without being able to upgrade, since the default connection was OpenLDI digital (not DVI), you had to buy an adapter (Usually out of stock and $600 retail) or get a new monitor.

    If there are enough monitors made at 16:9 instead of 16:10 in time 16:9 resolutions will be standardized. So if you plan to use this monitor for a few years, I think eventually you wont have any graphics cards problems. But until then, I would say the GeForce cards are very accomodating to non standard resolutions. I cant say much for 16:9 but I know that all VisionTek GeFroce2+ cards and certainly 4+ cards support 16:10 resolutions. GeForce2 was one of the few vendors that also supported 16:10 when there were only a handful of monitors running at that resolution.

    If you cant find anything that runs 16:9 and that monitor can rescale to 16:10 then I think a decent Geforce4 wont be much of a compromise. Plus, you should be able to hook up your DVD directly to it and still have it hooked up to your PC so you can still watch your movies at 16:9.

    My next monitor is the SGI F220 which im ordering next week, and lucky me I can get a GeForce4 to render, now I just have to find out if its compatible with non-SGI systems. ^_^

  5. Any modern card will work by drfrank · · Score: 2, Informative

    Do a search for "powerstrip" on download.com. For certain sure, you can use an ATI 8500, or GeForce 4 anything.

    (Lots of other cards will work, but these are the only ones I can personally attest to.)

  6. Try Matrox by -Surak- · · Score: 3, Informative

    I'm not sure about your specific application, but Matrox has always been pretty progressive with DVI support. I think they have at least one model of the G400 series with two DVI ports, and the new I think the new Parhelia card has three.

  7. Powerstrip by Devil's+BSD · · Score: 5, Informative

    I use PowerStrip to control my video card. If you get a card with DVI out, this program should support it. It supports about any card under any O/S, too. In the Display Configuration, you should be able to configure custom resolutions. One of the presets is already 1360x768. A few more clicks should get you to 1366x768.

    --
    I'm the Devil the Windows users warned you about.
  8. Some pointers by x+mani+x · · Score: 5, Informative

    First, to answer your question:

    Any modern ATI or Nvidia card should work just fine. Plasma displays are very sensitive with regards to having their exact resolution displayed, so use a program like Powerstrip to make sure Windows starts up with the exact resolution and refresh rate your plasma monitor requires.

    If you haven't bought a plasma display yet, then I recommend you think twice about getting it. There are some really low cost monitors out there that can interface pretty well with a PC. Take, for example, the JVC AV-48WP30, at around $1,700 you can have a 48" HDTV that supports DVI(*). People are using this TV with their PC's at 1280x720, or 1920x540. There are also new 42" (HLM427W, I believe) and 50" (HLM507W) Samsung HDTV's that support DVI and are based on badass DLP technology (I heard this set is particularly sharp when connected to a PC). These Samsung DLP's are MUCH cheaper than other comparable sets, something like $3,000-$4,000.

    Note, however, that while the theoretical HDTV resolution is 1920x1080i, very, very few HDTV's can display a discernable pixel grid at this resolution. Still, the price difference between a modern rear-projection HDTV and a plasma monitor is significant (you can buy a decent used car with the money you save).

    Here are some very helpful links, I used them extensively when I was shopping around for a new set:

    AV Science Forum: great forum with lots of very knowledgeable people. Many of them are into using displays like plasmas/HDTV's with their PC's.

    Home Theater Spot: similar to the above, different layout. Another great, helpful site.

    (*) Regarding these DVI connectors - yes, these are the new DVI connections used to transfer encrypted data to prevent people from copying future HD broadcasts. It is often documented that you can't use this DVI interface with your computer's DVI out, but more often than not this is not true and it will work just fine. However, ask around on the above sites about your particular DVI TV before buying an expensive DVI cable. :)

    1. Re:Some pointers by x+mani+x · · Score: 2

      Hi Karl,

      Also note that the newer DLP RPTV's do not fall victim to CRT burn-in.

  9. I run my 24" Samsung at 1920x1200 by FreeUser · · Score: 4, Informative

    Although my ATI 8500 should be able to drive my HDTV-ready monitor at 1920x1200 resolution, I've yet to be able to coax the X driver into delivering that resolution through the DVI interface.

    However, using the Nvidia binary-only X 4.2 drivers I have no trouble driving the monitor in 1920x1280 24-bit color resolution with a GeForce4 Ti4600.

    Such a setup should work fine for a relatively low-resolution plasma like the one you are considering, at 1366x768 ... indeed, I suspect you could easilly coax that out of an ATI 8500 or ATI 7500 under XFree 4.2, and almost certainly if you use ATI's drivers.

    If you're going to spend that kind of money on a plasma, though, I'd wait a couple of years, until they support true 1080i at least. 768 lines of resolution is analogous to 1024x768 resolution on a computer (yes, I know you get more horizontal pixels in a 16:9 format, my monitor is 16:10 so I'm intimately familiar with that), so keep in mind that you are buying an expensive product whose resolution will likely be disappointing to you in a couple or three years.

    --
    The Future of Human Evolution: Autonomy
  10. don't bother with DVI by g4dget · · Score: 2

    The quality of plasma displays is low enough that you almost certainly won't be able to tell the difference. Just get one with a standard VGA input. If you need to run the VGA cable a long distance, Blackbox.com offers boxes that let you use standard VGA with long cables. If you really want DVI, get a DVI-to-VGA converter and put it next to the screen. Keep in mind that the signal eventually will be analog anyway.

    1. Re:don't bother with DVI by g4dget · · Score: 2

      At Fry's or CompUSA, those are many monitors connected with very long cables to splitters and a single signal source. Of course, you get ghosting and image defects. The plasma monitors are probably connected to composite video. But if you plug one monitor into one VGA card with a good cable of reasonable length, you won't be able to tell the difference.

    2. Re:don't bother with DVI by g4dget · · Score: 2
      It's not merely an issue of resolution.

      By the way, I didn't say that it was an "issue of resolution". I didn't even mention the word "resolution".

  11. oh, this is humor, right? by pangloss · · Score: 2

    there are a lot of cards out there that will do 1600x1200 or better via dvi.

    i know for a fact there are geforce2mx cards that can push out 1920x1200. search around for samsung 240t users and you'll find plenty of hi-res (1920x1200) dvi cards.

    however, unless you plan on keeping your computer pretty close to your display, i think your bigger problem will be the length limitations of dvi cabling: 3-5 meters.

    1. Re:oh, this is humor, right? by spongman · · Score: 2
      yeah, but can they drive a plasma display? have you tried?

      cable length is not a problem, the computer is not going to be accessible...

  12. Why is this redundant again? by jgaynor · · Score: 2

    Drfrank is right. I use powerstrip and its an excellent reccomendation for this question. I sont have any points right now so someone mod this up. Hope that mod gets screwed in metamod.

  13. The answer by Stonent1 · · Score: 2, Informative



    With power strip you can dial up any resolution that you want and create a profile for it. Take a look at the nice PNG screen shot and see for yourself.

  14. Check your DVI plug! (DVI-I or DVI-D???) by SectoidRandom · · Score: 4, Informative

    A few months back I was setting up a Plasma screen for a client, connected to just a Geforce 4, the big problem I found immediatly was the connector! DVI is not just one plug!

    It turned out the Plasma screen (Pioneer I think) has a DVI-D connector and the GeForce (and every other video card I checked) has a DVI-I connector, they are not compatible! :( What I had to do after talking to both an A/V suplier and Pioneer was use a DVI-I to VGA cable as no DVI-I -> DVI-D exists! Apparantly the quality loss is insignificant, but it just didnt feel right. :( Still it did look brilliant at 1024x resolution!

    From what I was told by various sources is that DVI-D is purely digital, where as DVI-I is part analogue, I never had time to find out more, but if anyone can clarify this and why it would be something to take into consideration.

    1. Re:Check your DVI plug! (DVI-I or DVI-D???) by obi · · Score: 3, Informative

      Well, you got scammed - you didn't need to go back to VGA. if you got a DVI-I plug and a DVI-D plug, You can use a DVI-I or DVI-D to connect the two digitally.

      Check out this passage from a DVI faq:
      "
      If you have plugs that are DVI-D, they will accept a DVI-D or DVI-I cable. If you have plugs that are DVI-A, they will accept a DVI-A or DVI-I cable. If you have plugs that are DVI-I, they will accept any type of DVI cable.

      If you have mistmatched plugs, such as DVI-D and DVI-I or DVI-A and DVI-I, you may use either a DVI-I cable or the cable that matches the other plug. For example, you may use a DVI-D cable on a DVI-I to DVI-D connection, but not a DVI-A cable.

      Note: You may not mismatch a DVI-D and a DVI-A connection.
      "

      There.

    2. Re:Check your DVI plug! (DVI-I or DVI-D???) by alexburke · · Score: 3, Informative

      It turned out the Plasma screen (Pioneer I think) has a DVI-D connector and the GeForce (and every other video card I checked) has a DVI-I connector, they are not compatible!

      Yes, they are.

      Your GeForce has a DVI-I output connector on it, which outputs both digital and analog versions of the SAME signal. You can screw a small adapter onto that DVI-I connector which converts the analog signal, ground, and DDC pins to a normal VGA HD15 connector to use a normal CRT monitor with.

      However, if you plug a digital flat-panel display with a DVI-D input into that same connector on your GeForce, it will use the digital part of the output and will look better than if you used the analog part (assuming your monitor has both DVI-D and HD15 connectors like mine.

      So, yes, it will work. Plug it in, and if it's the only thing connected to the card, the card should detect that and use the digital output automatically without you having to connect an analog monitor and switch it over to digital output in the Display Control Panel.

      You're welcome.

  15. DVI Info by SectoidRandom · · Score: 5, Informative

    Just found this info on DVI connectors: All About DVI

    Hope this helps..

  16. sacrifices by DarkHelmet · · Score: 4, Insightful
    I'm trying to find the best way to connect a computer to a 50" (or larger) plasma display.

    I'd sacrifice my ex-girlfriend to the monitor god to get one of those plasma displays.

    Two birds with one stone.

    --
    /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i
    1. Re:sacrifices by MADCOWbeserk · · Score: 2

      I'd sacrifice my ex-girlfriend

      Hell I would sacrifice my current girlfriend.

    2. Re:sacrifices by Mignon · · Score: 2
      Hell I would sacrifice my current girlfriend.

      Dude, if she reads Slashdot, you just did.

  17. Re:yeah, really... by Dahan · · Score: 2

    My NOTEBOOK has higher resolution than that.

  18. 16 by 9 by cheese_wallet · · Score: 2

    Has anyone else noticed that most recent movies are being released with an aspect ratio of 2.35 instead of 1.85? this means all those beautiful 16:9 TVs will have to letterbox the 2.35s if you don't want to streatch the picture out vertically.

    I think that kind of sucks.

    1. Re:16 by 9 by funky+womble · · Score: 2
      The 2.35 releases are just giving you the film as it was shot, to keep the composition correct. Unless the TV screen is the same shape as the original film, there's no single way of displaying the image that will please everyone.

      At least if the DVD is released at 2.35, you can have your own equipment do the pan-and-scan if you don't like letterboxing. If it was released in 16:9 with parts of the original picture removed, there would be no way to recover them.

      Of course 1.85 isn't quite 16:9 either..

    2. Re:16 by 9 by cheese_wallet · · Score: 2

      Can you really have your own equipment do pan and scan? How does it know what part of the picture to look at?

      On a related note, I personally think that LCD projectors are going to improve to the point that people will want to go back to that method instead of a projection TV. I know I am almost to that point.

    3. Re:16 by 9 by funky+womble · · Score: 2
      I know that a lot of the software players will do pan and scan. I have seen 'aspect ratio conversion' in feature lists for hardware players, though since I've never used a hardware player I wouldn't know for sure.

      Certainly in the UK, broadcast digital television allows a choice of aspect ratio (changed in the setup menus of the set-top box), so it would seem a bit strange for DVD video to be any different. I don't really know how that would display a 2.35 picture though, it might just be for 16:9 to 4:3 conversion.

      I can't find any references about how the player decides which part of the picture to zoom in on, it would be most sensible for the position information to be encoded on the disk, but I don't know if that's actually the case.

  19. Check out Apple displays by Markonen · · Score: 2

    I don't know what you'll be paying for the SGI display, but since it hasn't exactly been the budget brand earlier I think the similar-spec Apple displays might be a cheaper alternative.

    In short, Apple has a 1600x1024@22" display for $2499 and a 1920x1200@23" display for $3499.

    Apple has a custom display connector for which you'll need a $149 adapter, but the proprietary format is quite useful: a single cable will carry power, DVI and USB to the display. This means that you can hide a noisy six fan Athlon beast in your closet (up to 15ft away with an extension) and only have one cable coming to desk, with your keyboard, mouse and speakers attached to the display. Neat!

  20. Re:Geforce 4 Ti 4600 by florin · · Score: 3, Informative

    Actually, some semi-modern video cards like the Matrox G550 and older versions have a limitation of 1280x1024 for their DVI output. There's a story one step up that talks about a tweak utility which sounds like it might circumvent this, but with the normal drivers settings it is not possible to go higher. The GeForce 4 and possibly the ATI 8500 do not have that problem.

  21. Re:why do you have to run native res? by spongman · · Score: 2

    i want unscaled, square pixels: the native resolution of the display. all the modes you listed above are for the analog input, not relevant to me.

  22. Well.. by mindstrm · · Score: 2

    CRT is better quality than LCD, for sure...
    But plasma?

    I saw a plasma screen at LG the other day.... seen it for the good part of a year, every day.

    It's the most stunning video quality I've EVER seen, anywhere. Crips, accurate, high-res, wicked contrast, you can see it from a mile away in the mall, insane viewing angle.

    It costs about $30,000 though.

    If I had to guess, I'd say that a plasma screen can probably be made to be superior to a CRT.
    Not cheaply.

  23. *sigh* by mindstrm · · Score: 2

    Projector.
    Go get a high end LCD or DLP projector. Do they make them in HDTV resolutions yet?

  24. AUTHOR addendum by spongman · · Score: 4, Informative
    First thanks for all your replies, I've gotten some good information.

    I should have been a bit more specific with my question.

    Firstly I want to use the DVI input on the display because I want to get the highest fidelity possible. I also want to be able to use the natvie resolution of the screen because I don't want the screen to have to scale the video image. The problem with using the DVI interface is that the DVI spec allows the screen to tell the video card which DVI resolutions it supports, and even though the screen may have a native resolution of 1366x768 (16:9) it may not advertise that mode to the card, and even if it does the driver or the card may not support that mode.

    I know that most DVI-capable video cards will support video modes larger than that of the screen (1600x1200, for example), but as far as I know the selection is limited when the DVI interface is being used.

    I know of the PowerStrip utility and its ability to create custom resolutions, but it doesn't necessarily mean that the display is capable of being driven at those resolutions.

  25. Related DVI question by wik · · Score: 2

    I have a dell 2000FP LCD monitor that I'm using with an analog input right now. The image looks fine at 1600x1200 with my old matrox millenium II card.

    I'm curious to see if anyone has gotten the 2000FP's DVI input to work with more modern 3D cards at 1600x1200 in Linux. In particular, I'd like to know which cards actually work at this resolution in DVI mode. Thanks!

    --
    / \
    \ / ASCII ribbon campaign for peace
    x
    / \
  26. Re:Sure. by spongman · · Score: 2
    Actually it's for my company and we'll be reselling or sub-leasing the screens to our customers. I don't have a test screen yet, and if you bothered to read the article you'd know that I'm still researching which screen fits the requirements. The reason I posted the question is because I don't have the money to buy a screen and I want to be sure I won't be wasting time renting one for $600+/day.

    Some people, really.

  27. Oddball DVI behavior... by nbvb · · Score: 2

    Be careful with slight incompatibilities between DVI specs ...

    As an example, I have 5 pieces of equipment:
    1) Apple Cinema Display 22" (ADC connector)
    2) PowerMac G4/466 (GeForce2 MX video board w/ADC)
    3) PowerBook G4/800 (w/DVI-I output)
    4) Sun Blade 1000 w/XVR-1000 video board (w/DVI-D output)
    5) Sun 24" LCD (1920x1200 native; DVI-D & VGA in)

    Now, ANY of the equipment can drive my Apple Cinema Display fine (I have the Apple DVI-to-ADC converter also to support the PBook & SunBlade).

    The Sun display looks GREAT on the Sun Blade, but it's awful on the PowerBook. The PBook supports its native resolution at 1920x1200, but I get all sorts of interference on the screen. Bits of "static" all over the display. If I use the VGA connector, it looks fine.

    And it's not my display or PBook, because I've swapped both with other people @ my office and we all have this problem.

    GRR... anyone know what the F___ is going on?

    Why would I get that static? Now, an interesting point, the Sun docs for the 24" say that it only supports DVI-D and *NOT* DVI-I. The PBook is DVI-I. I thought that using a DVI-D cable with a machine with DVI-I output would act just like DVI-I (just ignoring the analog pins)?

    The cable I'm using doesn't have the 4 analog pins around the "crosshair" so to speak.

    Anyone have this LCD? Has anyone seen this behavior before?!?!

    --NBVB