DragonFlyBSD Rebases Its Intel Kernel Graphics Driver Against Linux 4.0
Written by Michael Larabel in BSD on 28 December 2015 at 04:33 PM EST. 3 Comments
BSD --
DragonFlyBSD's Francois Tigeot has done some more great work in allowing their open-source Intel graphics driver to be more featureful and comparable to the Linux i915 kernel DRM driver for which it is based.

While DragonFly's i915 DRM driver started out as woefully outdated compared to the upstream Linux kernel code, the work done by Tigeot and others is quite close to re-basing against the latest mainline code. With patches published recently, the DragonFlyBSD driver would now be comparable to what's in the Linux 4.0 kernel.

With the latest i915 DRM code for DragonFlyBSD, there is now basic Skylake support, PSR support for Valley View and Cherry View, performance improvements for many recent GPU series, re-clocking changes, improved reset support for older Intel IGPs, better sound/graphics synchronization for HDMI audio, and various bug and stability improvements.

There's a ton of changes for Intel DragonFlyBSD users with this update and the DRM driver increases in size by about 15k lines of code. More details via this mailing list post.

Hopefully in 2016 we'll see DragonFlyBSD catch up to mainline or just being a release or so behind stable, which would be quite an accomplishment. Ideally we'll see this same catch-up with the Radeon DRM driver too.
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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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