Keith Packard Comments On Valve Work
Written by Michael Larabel in Linux Gaming on 14 March 2017 at 04:26 PM EDT. 31 Comments
LINUX GAMING --
As reported earlier, Keith Packard is Valve's latest driver developer hire for bettering the Linux display stack for gaming, and in particular, VR. Keith has now shared a few comments on his new endeavor.

First, it sounds like he'll still be working for HP Enterprise as his "day job" while working for Valve. Then in terms of his technical focus at Valve, he wrote on his blog:
First thing on my plate is helping support head-mounted displays better by getting the window system out of the way. I spent some time talking with Dave Airlie and Eric Anholt about how this might work and have started on the kernel side of that. A brief synopsis is that we'll split off some of the output resources from the window system and hand them to the HMD compositor to perform mode setting and page flips.

After that, I'll be working out how to improve frame timing reporting back to games from a composited desktop under X. Right now, a game running on X with a compositing manager can't tell when each frame was shown, nor accurately predict when a new frame will be shown. This makes smooth animation rather difficult.

Brief and to the point.
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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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