Slashdot: USB 4 Will Fully Support DisplayPort 2, Including 8K HDR Monitors

USB 4 Will Fully Support DisplayPort 2, Including 8K HDR Monitors
Published on May 01, 2020 at 06:30AM
VESA has announced that USB 4 will fully support the massive bandwidth available for the DisplayPort 2.0 standard, including support for 8K 60Hz HDR or even 16K 60Hz monitors. Engadget reports: Since USB 4 works at 40Gbps and DisplayPort 2.0 supports 80Gbps speeds, how will this work? USB 4 can actually send and receive at 40Gbps at the same time, so VESA took advantage of that with a new spec called DisplayPort Alt Mode 2.0. Since DisplayPort is primarily used for video, which only sends data one way from your PC to a monitor, the Alt Mode 2.0 standard remaps USB-C's data pins to work in one direction only -- giving you double the speeds. According to Anandtech, Alt Mode 2.0 will support regular USB 4 cables. At the same time, monitors won't need to have USB 4 controllers, which should simplify display designs. Since it also supports the Thunderbolt 3 standard, USB 4 will become a universal connection standard for both smartphones and PCs, supporting things like "docking, gaming, AR/VR HMDs, and professional HDR displays," VESA said.

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