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DisplayPort Multi-Stream Transport Starts Working On Linux

Hardware

Published on 03 May 2014 02:23 AM EDT
Written by Michael Larabel in Hardware
8 Comments

The work by David Airlie of Red Hat's DisplayPort Multi-Stream Transport is beginning to show success.

David Airlie has been working on Multi-Stream Transport support for effectively daisy-chaining multiple DisplayPort connections, as needed by some 4K displays and other setups. There's also a need for DisplayPort MST with some ThinkPad dock setups.

David has now posted working patches for his DP MST code on the DRI-devel mailing list. Right now his code has just been tested on a Lenovo Ultrabook boasting Intel "Haswell" graphics and it's working when connected to external hubs. There's still code that's a work in progress but overall it seems to be working fine. Right now this initial "preview code" works for Intel Haswell hardware with certain DP MST hubs.

The earliest we'll see this code is now for the Linux 3.16 kernel. Stay tuned to Phoronix for updates.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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