{"id":1874,"date":"2010-02-20T23:06:42","date_gmt":"2010-02-21T04:06:42","guid":{"rendered":"http:\/\/rbachnet.wwwmi3-ss40.a2hosted.com\/?p=1874"},"modified":"2022-12-30T12:43:34","modified_gmt":"2022-12-30T17:43:34","slug":"displayport-v1-2-arrives","status":"publish","type":"post","link":"https:\/\/rbach.net\/index.php\/displayport-v1-2-arrives\/","title":{"rendered":"DisplayPort v1.2 Arrives"},"content":{"rendered":"

\"VESA\"<\/a>The Video Electronics Standards Association (VESA<\/a>) has approved DisplayPort version 1.2. DisplayPort (DP<\/a>) is a royalty-free<\/a> technology<\/a> which key IT players like Intel, Microsoft, HP, Nvidia, AMD, Dell<\/a>, Apple<\/a>, Lenovo<\/a>, and other key IT players. DisplayPort aims to replace the DVI and HDMI interfaces by offering interoperability over a DP connector. The new standard allows any digital display to be driven from a multi-mode DisplayPort source. The new standard adds a higher speed auxiliary channel which will enable bi-directional data transfer over a single cable. This will support USB data at up to 720 Mbps, enabling embedded webcams, speakers, and USB hubs over a single cable.<\/p>\n

DisplayPort v1.2 also supports Ethernet data. \"DisplayPort\"<\/a> DisplayPort v1.2 doubles the data rate of the existing v1.1a standard to 21.6 Gbps. To achieve the 21.6 Gbps rate, the data rate across the four lanes has doubled from 2.7Gbps to 5.4Gbps. With the increased data rate a single DP connector can support multiple monitors. The new standard will enable a resolution of up to 3840\u00d72400 at 60Hz on a single monitor, two WQXGA (2560 x 1600) monitors, or four WUXGA (1920 x 1200) monitors. The new spec will support 3D Full HD Stereo content at 120Hz and High Color Range Quad Full HD (3840 x 2160 p). DisplayPort v1.2 also adds new audio enhancements including multiple channels, video synchronization assistance, and support for high-definition audio formats including the DRA standard<\/a> from China.<\/p>\n

\"DisplayPort<\/a>The new version is also backward compatible with the older standard, so all the ports, cables, and devices will be interchangeable. However, they will revert to the lowest common denominator, \u201cIt is completely backward-compatible with DP v1.1a and requires no new cables or other equipment, making it the standard of choice across the industry,\u201d said Bill Lempesis, executive director of VESA. DP v1.2 provides copyright protection.<\/p>\n

DisplayPort v1.1 added support for High Bandwidth Digital Content Protection (HDCP<\/a>). Digital Content Protection, an Intel subsidiary developed and licenses HDCP. The technology encrypts the audio and video components of HD content to prevent unauthorized copying and viewing of the\u00a0 HD video content as it travels across DisplayPort, DVI, HDMI, GVIF, and UDI connections. In the past, adding HDCP has forced users to buy and\/or upgrade their equipment<\/a> with HDCP-compliant products.<\/p>\n

DisplayPort also includes an optional DPCP (DisplayPort Content Protection) copy-protection from Philips, which uses 128-bit AES encryption. It also features full authentication and session key establishment (each encryption session is independent). There is an independent revocation system, which is licensed separately. DPCP also verifies the proximity of the receiver and transmitter to make sure users are not bypassing content protection systems to send data out to distant, unauthorized users.<\/p>\n

DisplayPort\u2019s main competition is High-Definition Multimedia Interface (HDMI<\/a>) which recently updated its specifications. Ars Technica<\/a><\/em> points out<\/a> that the new HDMI standard is more confusing than ever, \u201d \u2026 the one cable to rule all AV equipment will now have 45 potential variations for customers to choose from\u2014let alone the numerous (and often dubious) \u201cquality\u201d levels offered at hard-to-swallow prices<\/a>.\u201d Ars Technica<\/em> concludes<\/a>\u00a0that the new HDMI standard seems, \u201d to add complexity to a system that was originally designed to greatly reduce the complexity of connecting AV equipment in the first place. The new micro-HDMI connector also seems redundant.\u201d<\/p>\n

Brian O\u2019Rourke, the principal analyst for In-Stat<\/a>, told<\/a> EDN<\/em> in 2008 that manufacturers’ shipments [of DisplayPort] will grow to more than 600 million units in 2012. Most of these shipments will be PCs and PC peripherals.<\/p>\n

\"DisplayPort<\/p>\n

\u201cI don\u2019t see DisplayPort really gaining significant market share in the consumer-electronics world in the next five years,<\/em>\u201d says O\u2019Rourke. \u201cDuring that time, it will dominate the PC and PC-peripheral world, and HDMI will dominate the consumer-electronics world \u2026 The key for DisplayPort in the PC segment is that you can get rid of both the DVI controller and the VGA silicon.<\/em>\u201d Randy Lawson, iSuppli<\/a>\u2019s senior analyst for display electronics told EDN that iSupply expects that by 2010 DP will dominate desktop and notebook PCs adoption rates.<\/p>\n

DisplayPort has several advantages for use on mobile equipment. DP is easier than HDMI to integrate and implement in silicon as chips get smaller. Alan Kobayashi, a director of R&D at\u00a0 STMicroelectronics<\/a> says<\/a> that as semiconductor processes shrink, DisplayPort is more efficient than current display technologies. DisplayPort has a lower power consumption than HDMI, according<\/a> to Pericom Semiconductor<\/a>\u2019s Abdullah Raouf. DisplayPort in on the newer north-bridge chip sets\u2019 integrated graphics on newer CPUs, as well as in discrete GPUs on graphics cards, according<\/a> to Bruce Montag, chairman of the DisplayPort Task Group and senior technical staff member at Dell. \u201cThe market is quickly moving toward the integration of\u00a0 DisplayPort IP into a north-bridge or a discrete-graphics solution,<\/em>\u201d says<\/a> In-Stat\u2019s O\u2019Rourke. Digital TVs will begin adopting DisplayPort as an external port by 2010.\u00a0 In-Stat expects<\/a> that, higher-end digital TVs and then to other digital-CE products, including Blu-ray players and recorders and set-top boxes. will then adopt DP in the consumer market.<\/p>\n

DisplayPort is an attractive option for those seeking to cut the cost and improve the bandwidth and scalability of A\/V interface connections. The computer electronics industry is increasingly adopting open industry standards. DisplayPort’s support of\u00a0 A\/V, USB, and Ethernet make it a more open standard. Open standards like DisplayPort v1.2 provide a more versatile system which should be a consideration in any purchasing decision. ISuppli, \u201cbelieves<\/a> that the DisplayPort interface standard will be the successor to the venerable VGA interface on PC monitors as well as desktop and notebook PCs<\/em>“. VESA\u2019s Lempesis points out that DisplayPort\u00a0 is \u201ca truly open, flexible, extensible multimedia interconnect standard\u201d and \u201cis rapidly gaining traction in consumer electronics applications.<\/em>\u201d<\/p>\n

 <\/p>\n

Ralph Bach<\/a>\u00a0has been in IT long enough to know better and has blogged from his\u00a0Bach Seat<\/a> about IT, careers, and anything else that catches his attention since 2005. You can follow him on LinkedIn<\/a>,\u00a0Facebook<\/a>,\u00a0and\u00a0Twitter<\/a>. Email the Bach Seat\u00a0here<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

DisplayPort v1.2 is here to replace DVI and HDMI and will support USB data at up to 720 Mbps for embedded webcams speakers & USB hubs over one cable.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[3240,148,1274,22,150,1271,149,1235],"class_list":["post-1874","post","type-post","status-publish","format-standard","hentry","category-hardware","tag-3240","tag-displayport","tag-dvi","tag-hardware","tag-hdcp","tag-hdmi","tag-vesa","tag-video"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/posts\/1874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/comments?post=1874"}],"version-history":[{"count":17,"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/posts\/1874\/revisions"}],"predecessor-version":[{"id":129018,"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/posts\/1874\/revisions\/129018"}],"wp:attachment":[{"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/media?parent=1874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/categories?post=1874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rbach.net\/index.php\/wp-json\/wp\/v2\/tags?post=1874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}