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PowerXpress Runtime Power Management Added

AMD

Published on 20 September 2013 08:00 PM EDT
Written by Michael Larabel in AMD
11 Comments

Open-source developers are adding run-time power management support to the open-source Radeon DRM graphics driver for supporting ATI/AMD PowerXpress laptops.

There's been Radeon DPM power management since the Linux 3.11 kernel for improving the thermal performance and power consumption of AMD Radeon graphics processors. The results have been great and the Radeon DPM support was extended in the Linux 3.12 kernel.

The latest work on the Radeon power management front has been for adding run-time power management to support Radeon PowerXpress laptops -- mobile systems bearing a combination of Intel and Radeon GPUs. Landed in the Linux 3.12 kernel was GPU run-time power management support but the initial implementation for Optimus laptops.

David Airlie started working on this PowerXpress power management support while it's now been extended by Alex Deucher with this patch series. Alex is reporting the PowerXpress power management support is now working well on the hardware he's had access to testing.

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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