* As an inherently digital device, the LCD can natively display digital data from a DVI or HDMI connection without requiring conversion to analog, like a CRT would need.

However, HDMI and DVI differ in several key ways.

An HDMI source differentiates between a legacy DVI display and an HDMI-capable display by reading the display's EDID block.

To promote interoperability between DVI and HDMI devices, HDMI source components and displays support DVI signalling.

In the reverse scenario, a DVI monitor that lacks optional support for HDCP might be unable to display protected content, even though it is otherwise compatible with the HDMI source.

Features specific to HDMI, such as remote-control, audio transport, xvYCC, and deep-color, are not usable in devices that only support DVI signalling.

However, many devices can output HDMI over a DVI output ( examples: ATI 3000-series and NVIDIA GTX 200-series video cards ), and some multimedia displays accept HDMI ( including audio ) over a DVI input.

* Unified Display Interface ( UDI ) was proposed by Intel to replace both DVI and HDMI, but was deprecated in favor of DisplayPort.

They also stated: " Legacy interfaces such as VGA, DVI and LVDS have not kept pace, and newer standards such as DisplayPort and HDMI clearly provide the best connectivity options moving forward.

While not all standards bodies provide specifications freely available for download, many do, including: ITU, JEDEC, DVI, and HDMI ( through HDMI 1. 3a ).

However, there can be picture quality degradation when compared to using a DVI or HDMI connection, especially on larger sized LCD / LED monitors or TVs.

As of 2007, analog inputs were more commonly used than digital, but this changed as flat panel displays with DVI and / or HDMI connections became more widespread.

* output a video signal, either an analog one ( in NTSC, PAL or SECAM format ) on the composite, S-Video, SCART, or component video connectors, or a digital one on the DVI or HDMI connectors.

HDMI is a new digital connection for carrying high-definition video, similar to DVI.

DDC2 is not exclusive to the VGA connector, as both DVI and HDMI connectors feature dedicated DDC2B wires.

In their place are onboard peripheral ports such as Ethernet, FireWire, eSATA, audio ports ( both analog and S / PDIF ), video ( analog D-sub, DVI, HDMI, or DisplayPort ), and extra USB ports.

Flagged content must be output only to " protected outputs " ( such as DVI and HDMI ports with HDCP encryption ), or in degraded form through analog outputs or digital outputs with visual resolution of 720x480 pixels ( EDTV ) or less.

Some new DVD players, TV sets ( including HDTV sets ) and video projectors have DVI / HDCP connectors ; these are physically the same as DVI connectors but transmit an encrypted signal using the HDCP protocol for copy protection.

The 30 " version requires a dual-link interface, because a single-link DVI connection ( the most common type ) doesn't have enough bandwidth to provide a picture to a display of this resolution.

All 15 and 17 inch PowerBook G4 models have a DVI port as well as an S-Video out port.

By using TeX commands, it is possible to directly insert " literal PostScript " into the DVI file and have such snippets of PostScript appear in the final file generated by < tt > dvips </ tt >.

While HDMI and DVI switches have been manufactured, VGA is still the most common video connector found with KVM switches, although many switches are now compatible with DVI connectors.

The 13W3 connector is no longer used with modern displays, which have generally moved on to VGA or DVI connectors.

Devices advertised as HD-compatible or HD ready could take HDTV-signal as an input ( via analog-YPbPr or digital DVI or HDMI ), but they did not have enough pixels for true representation of even the lower HD resolution ( 1280 × 720 ) ( CRT based sets only capable of SDTV-resolution or VGA-resolution, 640 × 480 pixels, or the plasma-based sets with 1024 × 768 resolution ), lest the higher HD resolution ( 1920 × 1080 ), and so were unable to display the HD picture without downscaling to a lower resolution.

DVI is the only widespread video standard that includes analog and digital transmission options in the same connector.

This means, for instance, that an EBCDIC-based system can process a DVI file that was generated by an ASCII-based system, so long as it has the same fonts installed.

The analog section of the DVI specification document is brief and points to other specifications like VESA VSIS for electrical characteristics and GTFS for timing information.

Some also include electrical adaptors to change from one pinout to another ( e. g., Micro-DVI to normal DVI connector.

However, dual-mode DisplayPorts ( marked with a ++ DP logo ) are designed to transmit a single-link DVI or HDMI protocol across the interface through the use of an external passive adapter that selects the desired signal and converts the electrical signalling from LVDS to TMDS.

DVI was developed to create an industry standard for the transfer of digital video content.

Featuring support for analog connections as well, the DVI specification provides optional compatibility with the VGA interface.

Like modern analog VGA connectors, the DVI connector includes pins for the display data channel ( DDC ).

Each TMDS link carries binary data at ten times the pixel clock reference frequency, for a maximum data rate of 1. 65 Gbit / s × 3 data pairs for single-link DVI.

The DVI specification ( see below for link ) does, however, include a paragraph on " Conversion to Selective Refresh " ( under 1. 2. 2 ), suggesting this feature for future devices.

To support display devices requiring higher video bandwidth, there is provision for a dual DVI link.

This allows a VGA monitor to be connected with a passive plug adapter and offers a universal solution for the DVI interface.

DVI links provides differential pairs for data and for the clock.

The DVI specification includes signaling for reducing power consumption.

Since DVI uses a certain bit code scheme for trying to transport an evenly balanced signal of 0 and 1 bits there may not be much difference between two pixel colours that differ very much in their colour or intensity.

For example, most TeX software packages include a program for previewing DVI files on a user's computer display ; this program is a driver.

Drivers are also used to convert from DVI to popular page description languages ( e. g. PostScript, PDF ) and for printing.

DVI files are often converted into PDF, PostScript, or PCL format for reading and printing.