As of the HDMI 1.4 specification, the following cable types are defined for HDMI in general: [77] [78] Some of the transmitted bits are used for encoding purposes rather than representing data, so the rate at which video data can be transmitted across the HDMI interface is only a portion of the total bit rate. Well, the simplest method is to use an HDMI port for one monitor and any other port for the second screen. This way, you do not need to buy an external device for running dual monitors. However, this technique will only work if your second monitor and PC share the same port. Features specific to HDMI, such as remote-control and audio transport, are not available in devices that use legacy DVI-D signalling. However, many devices output HDMI over a DVI connector (e.g., ATI 3000-series and NVIDIA GTX 200-series video cards), [5] :appx. C [57] and some multimedia displays may accept HDMI (including audio) over a DVI input. Exact capabilities beyond basic compatibility vary. Adapters are generally bi-directional.

Several versions of HDMI have been developed and deployed since the initial release of the technology, occasionally introducing new connectors with smaller form factors, but all versions still use the same basic pinout and are compatible with all connector types and cables. Other than improved audio and video capacity, performance, resolution and color spaces, newer versions have optional advanced features such as 3D, Ethernet data connection, and CEC extensions. While certainly not sexy, a 48Gbps HDMI 2.1 cable is essential for getting the most out of a PS5, Xbox Series X or gaming PC (and, to a lesser extent, an Apple TV 4K). With a lesser cable, you likely won't get 4K/120Hz– and VRR might not work either. Or you might get a generally patchy performance. Of course, the PS5 and Xbox Series X each come with an HDMI 2.1 cable, but you might need a replacement or an extra one. HDMI 2.1 supports Dynamic HDR at 4K/120fps and 8K/60fps. This allows the television to adjust its picture based on frame-by-frame information in the manner of Dolby Vision and HDR10+. Since dark landscapes might have different contrast requirements to that of brighter scenes, the ability to make instant adjustments allows your movies and TV shows look their best. This section may require cleanup to meet Wikipedia's quality standards. The specific problem is: Lead is out-of-date, section reads likes a timeline. Please help improve this section if you can. ( June 2019) ( Learn how and when to remove this template message)a b c d e "HDMI 1.4 FAQ". HDMI.org. Archived from the original on May 23, 2010 . Retrieved November 20, 2009.

Customisable PCs – choose from a wide variety of pre-configured models that give you lots of options for processor, memory, storage drives, resolution, graphics cards, and more Previously the only way to overcome this constraint was to use active HDMI cables, which employ an amplifier to boost the signal allowingit to be maintained for longer distances without degradation, and are typically found in professional settings. Samsung (February 24, 2006). "Samsung Camera Releases New High-Performance Digimax L85 Featuring World's First High Definition Multimedia Interface". dpreview.com . Retrieved July 1, 2008.The features defined in the HDMI Specification that an HDMI device may implement are listed below. For historical interest, the version of the HDMI Specification in which the feature was first added is also listed. All features of the HDMI Specification are optional; HDMI devices may implement any combination of these features. a b c d "HDMI Founders announce initiative to broaden industry participation in HDMI specification development". HDMI.org. October 25, 2011. Archived from the original on April 13, 2016 . Retrieved October 29, 2011. A new certification program was introduced in October 2015 to certify that cables work at the 18Gbit/s maximum bandwidth of the HDMI 2.0 specification. [79] In addition to expanding the set of cable testing requirements, the certification program introduces an EMI test to ensure cables minimize interference with wireless signals. These cables are marked with an anti-counterfeiting authentication label and are defined as: [80]

It is a one-wire bidirectional serial bus that is based on the CENELEC standard AV.link protocol to perform remote control functions. [46] CEC wiring is mandatory, although implementation of CEC in a product is optional. [5] :§8.1 It was defined in HDMI Specification 1.0 and updated in HDMI 1.2, HDMI 1.2a and HDMI 1.3a (which added timer and audio commands to the bus). [5] :§§CEC-1.2,CEC-1.3,CEC-3.1,CEC-5 USB to CEC adapters exist that allow a computer to control CEC-enabled devices. [47] [48] [49] [50] HDMI Ethernet and Audio Return Channel [ edit ] With the new, higher bandwidth requirements of HDMI 2.1, new methods of compression are required. The most common method of compressing video streams is a technology called Display Stream Compression (DSC). Itwas initially developed with computers in mind and couldn't encode most TV signals efficiently. The VESA groupresponsible for maintaining DSC released an updated version of DSC, known as DSC 1.2, which increases the maximum color depth to 16-bit and enables native YCbCr 4:2:0 and YCbCr 4:2:2 encoding without the need to convert to RGB first. HDMI 1.2a was released on December14, 2005 and fully specifies Consumer Electronic Control (CEC) features, command sets and CEC compliance tests. [96] Version 1.3 [ edit ] HDMI ports offer high bandwidth, which is ideal for gaming. Thus, many consoles like Playstation and Xbox support HDMI cables. a b c d e "HDMI FAQ". HDMI.org. Archived from the original on February 22, 2018 . Retrieved July 9, 2007.

An HDMI extender is a single device (or pair of devices) powered with an external power source or with the 5V DC from the HDMI source. [83] [84] [85] Long cables can cause instability of HDCP and blinking on the screen, due to the weakened DDC signal that HDCP requires. HDCP DDC signals must be multiplexed with TMDS video signals to comply with HDCP requirements for HDMI extenders based on a single Category 5/ Category 6 cable. [86] [87] Several companies offer amplifiers, equalizers and repeaters that can string several standard HDMI cables together. Active HDMI cables use electronics within the cable to boost the signal and allow for HDMI cables of up to 30 meters (98 feet); [83] those based on HDBaseT can extend to 100 meters; HDMI extenders that are based on dual Category 5/ Category 6 cable can extend HDMI to 250 meters (820 feet); while HDMI extenders based on optical fiber can extend HDMI to 300 meters (980 feet). [84] [85] Licensing [ edit ] Connectors [ edit ] Connector types for HDMI HDMI connector plugs (male): Type D (Micro), Type C (Mini), and Type A HDMI type A receptacle HDR10 requires 10 bpc (30 bit/px) color depth, which uses 25% more bandwidth than standard 8 bpc video. Many mobile phones can produce an output of HDMI video via a micro-HDMI connector, SlimPort, MHL [188] [189] [190] or other adapter. [191] [192] [193] [194] Legacy compatibility [ edit ] Most of us use HDMI cables to run dual monitors as they transmit high-quality video and sound. But, what if our PC has got only a single port? Often, we scratch our heads to find a possible solution for this.

a b "HDMI Specification Marks 10-Year Milestone as De-Facto Standard for HD Connectivity". Business Wire. January 8, 2013 . Retrieved January 10, 2013. In September 2009, AMD announced the ATI Radeon HD 5000 series video cards, which have HDMI 1.3 output (deep color, xvYCC wide gamut capability and high bit rate audio), 8-channel LPCM over HDMI, and an integrated HD audio controller with a Protected Audio Path that allows bitstream output over HDMI for AAC, Dolby AC-3, Dolby TrueHD and DTS-HD Master Audio formats. [176] [177] [178] The ATI Radeon HD 5870 released in September 2009 is the first video card that allows bitstream output over HDMI for Dolby TrueHD and DTS-HD Master Audio. [178] The AMD Radeon HD 6000 Series implements HDMI 1.4a. The AMD Radeon HD 7000 Series implements HDMI 1.4b. [179] On September18, 2014, Nvidia launched GeForce GTX 980 and GTX 970 (with GM204 chip) with HDMI 2.0 support. On January22, 2015, GeForce GTX 960 (with GM206 chip) launched with HDMI 2.0 support. On March 17, 2015, GeForce GTX TITAN X (GM200) launched with HDMI 2.0 support. On June 1, 2015, GeForce GTX 980 Ti (with GM200 chip) launched with HDMI 2.0 support. On August 20, 2015, GeForce GTX 950 (with GM206 chip) launched with HDMI 2.0 support.a b "CEA Announces Publication of New DTV Interface Standard". Business Wire. July 15, 2013 . Retrieved July 17, 2013. Customisable laptops – choose from pre-configured models with a wide variety of options for processor, memory, storage drives, resolution, graphics cards, and more Terms Apply. Promotion ends 3 December 2023. Items are subject to availability. Max 5 units per customer.