Intel DisplayPort Gets High Bit Rate 2 In Linux 3.14
Written by Michael Larabel in Intel on 22 January 2014 at 10:46 AM EST. 6 Comments
An Intel DRM driver change that's been queued up for the Linux 3.14 kernel provides High Bit Rate 2 (HBR2) support for DisplayPort 1.2 devices for Haswell and future generations of Intel hardware.

The High Bit Rate 2 (HBR2) mode of DisplayPort 1.2 provides bandwidth of 17.28 Gbit/s and allows for greater resolutions, refresh rates, and great color depth. Intel supports Displayport 1.2 with HBR2 on Haswell and Broadwell graphics processors while now with the next Linux kernel release it will be supported on the software side.

The change allowing Intel's open-source Linxu graphics driver to support DisplayPort High Bit Rate 2 (HBR2) can be found with this Git commit. Intel's Linux graphics team settling their DisplayPort 1.2 support comes just ahead of DisplayPort 1.3 that's expected in the months ahead with even higher bit rates.

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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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