DisplayLink USB 3.0 Support Sounds Like A Mess
Written by Michael Larabel in Hardware on 31 October 2014 at 09:00 AM EDT. 1 Comment
HARDWARE --
While DisplayLink's USB2-based graphics adapters tend to be well supported under Linux even with a DRM/KMS driver, there's been no support for the newer DisplayLink USB 3.0 devices.

David Airlie at Red Hat spent today looking at DisplayLink USB 3.0 support and froum the sounds of it, it's going to be a mess to support without some official documentation or development support.

The DisplayLink USB 3.0 protocol is based on the notorious HDCP protocol (High-bandwidth Digital Content Protection). David started looking at how the initial packet handshake goes and while he's written some initial code, so far nothing is really working.

Airlie wrote about his day-long adventure with DisplayLink USB 3.0 and HDCP on Linux in his Live Journal blog.
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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 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 or contacted via MichaelLarabel.com.

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