Although the signal does undergo a digital-to-analog conversion, the result is of higher quality than when using a standard VGA cable. As mentioned earlier, this is one of the reasons people like DVI because it’s easy to convert to other connectors. The active region is encoded using transition-minimized differential signaling, where the control region is encoded with a fixed 8b/10b encoding. For example, an HDMI display can be driven by a DVI-D source because HDMI and DVI-D both define an overlapping minimum set of supported resolutions and frame buffer formats.

Check your owner's manual to verify what your monitor's native resolution is (always send the native res, when possible), and to make sure it's capable of accepting that resolution with the cable you want to use. To wrap it up, DVI is a useful and versatile connector, but I wouldn’t use it for your main display. The digital video signal received from the source is converted to analog to be transmitted via the cable. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. There are three types of DVI ports: DVI-I, DVI-D, and DVI-A, and it’s important not to confuse them because they’re not backward compatible.

To promote interoperability between DVI-D and HDMI devices, HDMI source components and displays support DVI-D signalling. However, you still need to change the display technologies, usually due to differing ports on a computer and display. As soon as you convert between them, the quality will reduce from whatever the source was to a maximum to 1024x768. If a depth greater than 24 bits per pixel is desired, the least significant bits are sent on the second link. It was developed with the intention of creating an industry standard for the transfer of uncompressed digital video content.

This conversion from digital to analog and back results in a degradation of video quality for VGA connectors. DVI does not use packetization, but rather transmits the pixel data as if it were a rasterized analog video signal. In December 2010, Intel, AMD, and several computer and display manufacturers announced they would stop supporting DVI-I, VGA and LVDS-technologies from 2013/2015, and instead speed up adoption of DisplayPort and HDMI. Dual link should not be confused with dual display (also known as dual head), which is a configuration consisting of a single computer connected to two monitors, sometimes using a DMS-59 connector for two single link DVI connections. Like other ways of transmitting video, there are two different regions: the active region, where pixel data is sent, and the control region, where synchronization signals are sent.

Today's video technology is moving away from analog ( VGA (video graphics array)) for digital connection formats ( HDMI, DVI (digital visual interface), DisplayPort). DVI-I (Digital Video Interface - Integrated): As the name suggests DVI-I supports both analog and digital signals but not both at the same time. In the reverse scenario, a DVI display that lacks optional support for HDCP might be unable to display protected content even though it is otherwise compatible with the HDMI source.

To make it easier to understand, most graphics cards have at least one dual-link DVI port, single-link DVI-I is kind of dated. If you have the option to use HDMI or another port liked Display Port, use those instead, DVI and VGA should only be used as a last resort because the quality isn’t the best. Choose the right adapter that will plug into the device that you want to have either the DVI or VGA connection that you need, and connect everything up, using the adapter to replace the usual port. The output resolution will be good enough for documents and watching movies but it won’t be true-HD and I definitely do not recommend it for games.Before we start, it's important to note that with the exception of VGA, all the other connections here are digital.