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⇱ New Intel Linux Driver Patches Enable HDR Over DP MST Connections - Phoronix


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New Intel Linux Driver Patches Enable HDR Over DP MST Connections

Written by Michael Larabel in Intel on 26 June 2026 at 02:21 PM EDT. 2 Comments
One of the limitations of the Intel Linux driver's high dynamic range (HDR) display support is that it currently doesn't work for any DisplayPort Multi-Stream Transport "DP MST" connections, such as for daisy chaining monitors or multi-monitor docking stations. But the good news is patches are being worked on to address this Intel Linux kernel display driver shortcoming.

Gil Dekel of Google has been posting patches this week to get HDR over DP MST working for the Intel driver. Today is already a second revision of the work to fix some issues with the original patch posting.

👁 Linux HDR


With the patches adding just around 60 lines of new code, it's then possible to enable HDR over DP MST connections. It's too late for this work to come about for Linux v7.2 but hopefully it will be ready for the 7.3 cycle.

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, LinkedIn, or contacted via MichaelLarabel.com.