HDR Support Is Being Worked On For Linux's DRM Code
Written by Michael Larabel in Linux Kernel on 31 May 2017 at 06:14 AM EDT. 7 Comments
LINUX KERNEL --
With more HDR monitors hitting the market, Intel developers are working on plumbing support for High Dynamic Range displays into the Linux kernel's DRM layer.

HDR monitors allow better contrast, greater brightness, and a wider color palette compared to conventional displays. Most of you probably don't yet have HDR gaming monitors, but the number of displays continue rising this year and this week at Computex are yet more HDR monitor announcements.

Last year NVIDIA presented on their work for HDR display support on Linux -- as well as mentioning the current limitations -- while the work being done now by Intel is about prepping the DRM layer code for these next-gen displays.

A set of nine patches published today by Intel's Uma Shankar allows for HDR support in DRM with handling of HDR meta-data structures and being able to pass content from the user-space compositors to graphics drivers.

The patches are available for review but will not be merged until there is user-space support in place. Hopefully user-space will be quick in getting around HDR so that the Linux display support won't lag too long behind Windows.

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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 10,000 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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