Intel Posts Linux Patches Bringing Up DisplayPort 2.0 - DG2 Alchemist To Support DP 2.0
Written by Michael Larabel in Intel on 18 August 2021 at 02:30 PM EDT. Add A Comment
INTEL --
It looks like 2022 is when we will start seeing DisplayPort 2.0 hardware broadly available... It was just earlier this week I wrote about AMD working on DisplayPort 2.0 for their open-source Radeon Linux driver and now coincidentally today Intel has begun their open-source Linux graphics driver enablement for DP 2.0.

Intel just published an initial set of 17 patches working to prepare DisplayPort 2.0 functionality for their "i915" kernel graphics driver. This includes various low-level driver changes for being able to handle DisplayPort 2.0 but isn't yet a complete DP 2.0 implementation.

Worth noting with these initial Intel DisplayPort 2.0 patches though is are DG2-specific changes... Thereby confirming Intel's next-gen DG2 graphics cards will support DisplayPort 2.0. As announced earlier this week, "Alchemist" is the new codename for DG2 and Intel's first "Arc" graphics cards will be coming in Q1'2022. One of the patches does explicitly spell out as well, "DG2 supports DP 2.0 UHBR [Ultra High Bit Rate] and 128b/132b channel encoding."

DisplayPort 2.0 was announced back in June of 2019 and can offer a 3x increase in data bandwidth performance. It's taken a while for DP 2.0 graphics cards and monitors in part delayed by the pandemic, but it looks like over the next few months that will change.

This start of the DisplayPort 2.0 enabling for the Intel Linux kernel graphics driver can be found on the mailing list. With the timing of these initial patches, that support isn't expected to be mainlined until at least the Linux 5.16 kernel later this year.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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