SteamOS 2.115 Switches From AMDGPU-PRO To AMDGPU+RadeonSI
Written by Michael Larabel in Valve on 22 May 2017 at 06:30 PM EDT. 43 Comments
VALVE --
Valve has pushed out a long-awaited update to SteamOS Brewmaster and in this latest beta update have switched away from the AMDGPU-PRO hybrid driver in favor of Mesa.

AMDGPU-PRO is no longer used on SteamOS 2.115 Brewmaster now instead favoring the completely open Radeon Mesa stack. The RadeonSI Gallium3D driver has been maturing a lot in recent months where its performance is now on par or superior to AMDGPU-PRO in most games, the game compatibility is getting good, and meanwhile there hasn't been too much noteworthy changes to AMDGPU-PRO. The RADV Vulkan driver also continues getting better although its Vulkan performance comes up short of AMDGPU-PRO.

With moving away from AMDGPU-PRO, they are now able to also upgrade their kernel and with this release are using Linux 4.11 stable. This Brewmaster update also pulls in the stable package updates of Debian 8.8.

The complete list of changes with this SteamOS update can be found via this Steam Community thread.
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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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