With DisplayPort 2.1, longer cables won’t reduce throughput

The Video Electronics Standards Association (VESA) today announced the release of DisplayPort 2.1. It brings several improvements over DisplayPort 2.0, such as tighter compliance with USB Type-C and USB4 PHY specifications, improved connectivity through DisplayPort tunneling over USB4, and longer cable lengths while maintaining high bandwidth.

Following DisplayPlay 2.0 released earlier this year, DisplayPort 2.1 enables a larger PHY according to the USB Type-C and USB4 PHY specifications. The new version also added a DisplayPort bandwidth management feature that allows DisplayPort tunneling to work together with other I/O traffic over USB4 with high efficiency.

Alan Kobayashi, VESA Board Chair and Chair of the VESA DisplayPort Working Group, says that “achieving greater alignment between DisplayPort and USB on a common PHY has been a particularly important effort within VESA given the significant overlap in models use cases between the DisplayPort and USB4 ecosystems. “

Speaking of DisplayPort 2.1 and its convergence with the USB4 PHY specifications, Kobayashi also states that “features such as controlling multiple displays over a single cable or enabling multiple functions on a single port such as video, power and data transmission no longer require any compromise in choice of video format.”

Another improvement that comes with the DisplayPort 2.1 specification is with full-size cable and Mini DisplayPort cable configurations. It is now claimed that ultra-high bit rate (UHBR) throughput over VESA-certified DP40 (maximum 40 Gbps four-lane) and DP80 (maximum 80 Gbps four-lane) cables does not degrade with longer cables (more than one meter for DP80 ). , and more than two meters for DP40).

For more information about DisplayPort 2.1, please visit the VESA site.

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Source: newstars.edu.vn

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