The Video Electronics Standards Association (VESA) has unveiled the latest edition of the DisplayPort standard, known as 2.1a, at the CES 2024 trade show. While AMD is currently the only company using the DP 2.1 standard in its Radeon graphics cards, the new specification aims to bring many benefits for users.
The main innovation introduced by the DP 2.1a standard is improved compatibility with USB 4 and USB-C interfaces. This new standard primarily applies to the UHBR 13.5 connectors, also known as the “big DisplayPort.” In the DP 2.1a standard, the specification for this type of connector has been increased from DP40 to DP54. As a result, transfers for four lanes increase from 40 Gb/s to 54 Gb/s. For users requiring even higher bandwidth than 40 Gb/s, DisplayPort 2.1 cables with USB-C connectors compatible with DP80 (80 Gb/s) were previously available. However, with the new 2.1a cables featuring DP54 specifications and UHBR 13.5 connectors, it will be possible to transmit images up to 2 meters, providing users with greater flexibility.
Another important aspect of the new DP 2.1a specification is the introduction of critical security protocols for automotive displays, known as Automotive Extension Services. These protocols utilize high-security Cyclical Radivalical Redundancy Check (CRC) mathematical signatures to ensure the integrity and reliability of video data. The implementation of these protocols aims to enhance security in critical moments by ensuring the registration of all video data frames and eliminating the possibility of skipping or repeating frames.
Additionally, it is worth mentioning the improved quality of the Multi-Stream Transport (MST) mode for multiple monitors using a single source cable. Thanks to the new DP 2.1a standard, any interference that may occur with this feature will be reduced.
Source: VESA
The source of the article is from the blog qhubo.com.ni