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Goodbye DVI and VGA, DisplayPort is Here | |
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| Time: 01:10 EST/06:10 GMT | News Source: BetaNews | Posted By: Jonathan Tigner | ||
|
While it still may be a few years before we can officially wave goodbye to VGA and DVI, the Video Electronics Standards Association (VESA) today announced approval of DisplayPort 1.1 as the new industry standard for flat panel displays, projectors, PCs and consumer electronics devices. DisplayPort 1.1 most notably adds support High Bandwidth Digital Content Protection (HDCP) version 1.3. HDCP is the copyright protection technology required by both Blu-ray and HD DVD content, which prevents the digital video signal from being hijacked and recorded to unprotected media. The new standard is designed to eventually replace LVDS, DVI and VGA, and manufacturers are already clamoring to adopt it. The reason is simple: DisplayPort utilizes a single digital interface for connecting both internal and external displays. This means that DisplayPort can carry pixels directly from any display source to any LCD panel. | ||
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| #1 By 1642 (66.208.6.173) at 4/5/2007 7:59:40 AM |
| Can someone explain the differences between DisplayPort and HDMI? From the little I know it sounds like this is going to be anohter battle between two formats. |
| #2 By 13030 (198.22.121.110) at 4/5/2007 9:59:19 AM |
| Once I saw "copyright protection", I knew that this was more about protecting old business models and revenue streams, than technology. |
| #3 By 23275 (24.179.4.158) at 4/5/2007 11:11:14 AM |
|
#1, They are competitors for sure and at first blush, HDMI has the better spec sheet, but for PC and discrete video card manufacturers, DisplayPort will be cheaper to manufacture - most especially so for integrated products. For example, AMD/ATI's Fusion Project, which may ship this year, will integrate graphics processing and decentralized processing all in one package.
As core architectures evolve, they will become heterogeneous and thread pools/management will be dynamic - assigning threads to one or more smaller cores, best suited to different types of tasks, or dynamically retasking less busy cores. This is why Display port will win out on the PC and closely related devices - connected panels, projectors... etc... they will not only be cheaper to build, and more powerful, but they will work with modern operating systems and development tools to help developers leverage cores of different sizes and types - the last reason being a strong driver behind adoption. #2, Both formats now support HDCP, but DisplayPort includes optional DPCP [DisplayPort Content Protection] copy-protection, developed by Phillips - which uses 128 bit AES. Despite the option to invoke restrictive tokens, I don't think we'll see media requiring tokens until 2010-12, if ever. Heck, the media owners are having a VESA at vesa.org governs the DisplayPort specification and it is a free and open standard - with about every company one may imagine, supporting the format. While I like the bandwidth and potential that HDMI has, I can understand why - given the move to heterogenous multi-core architectures and all the complexities associated with development for such platforms, why DisplayPort is attractive to most PC, electronics and commercial software manufacturers. One thing that does concern me about both formats and DisplayPort in particular, are the small, possibly fragile connectors - where in the case of DisplayPort, the connection is supposed to support "Blind Connections" by feel. As small as they are, it seems possible that they may be easily damaged, or not stand up to repeated connections as one might encounter with a projector. |
| #4 By 21705 (142.213.176.140) at 4/5/2007 12:09:13 PM |
| What's will be the max length of the cable? |
| #5 By 23275 (24.179.4.158) at 4/5/2007 12:48:35 PM |
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#4, great question, but there is no single answer - "it depends" upon what kind of cable and of course what kind of data is desired to be sent over it - for example, double CAT-5 would support runs in excess of 100 meters [same with fiber - both of which would be an option for transmission lines]. 12 meters in pre-cut cable would be supported, so runs in support of a good sized media room would be finet not as easily for an entire home - for that I would build an MDX/IDX solution - where a backbone was created from an MDX-main distribution facility to IDX-intermmediate distribution facilities using at least one signal amp and as many repeaters as would be needed to provide coverage - using the same lines of course for many different means - for example, one of the 1 lanes available under the spec for HD TV/Movies and another lane for Internet, etc...
The same of course, can and is done for HDMI, which can push about 22 meters with the right cable out of the box. [where the goal would be support for 1080P video and uncompressed audio]. |
| #6 By 2960 (24.254.95.224) at 4/5/2007 4:27:23 PM |
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#2 has the right idea methinks. And you KNOW hardware manufacturers will back this as it allows them to re-sell an entire new fleet of equipment to customers.
TL |
| #7 By 23275 (24.179.4.158) at 4/5/2007 10:58:35 PM |
| #6, TL, I think that by the time high-def really makes it to a lot of people a couple of things will be right there with it: systems at the very low end that are plenty powerful enough to process high def media. heterogeneous multi-core processors with powerful integrated video and HD players [BD and or HD-DVD] driving interfaces that can talk to displays capable of supporting the new interface. Similarly, fiji will have shipped and Vienna will be close - so kinks in HDCP compliant cable card support will be worked out, or people will be dumping to carriers in favor of IPTV. About 2.5 years and things will be quite different and about that time, some kind of protection will be necessary to protect perfect copies of movies and TV shows form being stolen and distributed. |
| #8 By 2960 (24.254.95.224) at 4/6/2007 11:48:32 AM |
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What sucks is this ENTIRE HDTV mess is 100% attributable to Copy Protection, and nothing else. Again, the consumer is having to pay the freight for these companies paranoia.
Just think of all the millions of "Good little consumers" that went out and bought HDTV's early, only to find that they will be completely useless in the future. |
| #9 By 1896 (207.244.167.57) at 4/6/2007 7:39:40 PM |
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#7: "some kind of protection" is the key word; unfortunately our representatives are the best ones big industries were able to put on power ad this has created the actual situation where the citizens rights, our rights, are not considered at all. The fact that here in the US you are not allowed to make a back-up copy of a DVD I bought and paid is the best example of it. Some of these overpaid, short sighted top executives evidently thought that this move would have driven higher sales but, as often happens, the reality is very different: I stopped a long time ago to buy DVDs in the US; I buy them in other Countries where make a safety back up copy is legal.
HD DVDs and BluRay ones they can keep them; until a fair compromize between the legitimate rights of content owners and the legitimate ones of buyers will be reached I am happy with "regular" DVDs. I mean we are in the year 2007 and for legal, not technically reasons we cannot stream movies in our home networks? This is pathetic! This post was edited by Fritzly on Friday, April 06, 2007 at 19:40. |
| #10 By 23275 (24.179.4.158) at 4/6/2007 9:04:35 PM |
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#10, Spot on observations. It is indeed, unfortunate - the practices seem to extend to accusing consumers of being criminals for simply being paying customers.
Where I can't agree with some, is with those that assert that companies like Microsoft and Toshiba, Dell, or even my own, are somehow responsible for these policies and resulting practices, or that by some special power, big companies like Microsoft should in some way influence such decisions. For very valid reasons, Microsoft can't - after all, it is an IP holder and can't lobby to weaken the protections others apply without contradicting itself. Also, such companies are not advocacy groups, or social activists - they are public companies in most cases. So companies like Microsoft are left to figure out "how" to make protected content work well and in a way that is easy and consistent for consumers but within the limitations imposed by the content owners and distributors. I don't know how we can expect more, because quite obviously, it is much harder and far more expensive for Microsoft and hardware companies to have to bake all the protections in - as compared to having none. As public companies, DRM, etc... hurts them, too. As regards HD content, the matter is much worse - essentially perfect copies could be distributed illegally - so the protections are more stringent. Candidly, I don't think that content protections are hurting sales of DVD's, BD's or HD-DVD's - they've been flat for some time. The nature of films has changed and frankly, too few decent ones are produced - too few stories. Those films that are produced cost enormous amounts of money and have to be filled with so much in the way of special effects and CG that it takes many studios and hundreds of millions to even get started - people just don't like stories as much these days. If protections are lifted, it won't be due to legislation, but due to fatigue and desperate attempts to drive sales. I think this is behind so many TV series being released to DVD - as there is just too little great content to choose from. "IF" protections are lifted, it will be for a combination of two reasons: 1) desperation on the part of owners to drive interest against what the false assumption presents that protections meaningfully slow sales and 2) once IPTV/on-demand improves and is supported in at least, 720P. Finally, I am so very with you on the storing and streaming around our home need - it is such a miserable shame. We have an enormous collection of films that we spent years building and so often it is idle, because not being able to stream it seems so perverse. Oh... I remember how mad people were when we had to start putting locks on our doors at home and locking our cars... we were all so angry about it and the TV spots demanding that we do. Really serious discussions were heard about having to carry so many keys. People resented it. There is about nothing worse than a thief - they diminish all men. |
| #11 By 76704 (75.40.99.91) at 4/8/2007 9:30:41 AM |
| Well, thank God for the hackers - once the new standard is in place it will not be so long before it gets broken - one way or another. Let the big industry pigs rejoyce for a couple of months... |
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