1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Radeon DPM Power Management Gets Fixed Up Again

AMD

Published on 08 August 2013 12:08 AM EDT
Written by Michael Larabel in AMD
40 Comments

Another round of bug-fixes for the Radeon Dynamic Power Management code has been submitted for the Linux 3.11 kernel.

While the pull request more than a week ago with the latest Radeon DPM changes believed this important dynamic power management code was in good shape, some more fixes were turned out to be needed. Alex Deucher sent in another round of Radeon DRM fixes for Linux 3.11 on Wednesday evening. This latest round takes care of hangs with DPM on some RV6xx series (Radeon HD 3000) graphics processors and separately fixes suspend-and-resume when using UVD video decoding.

Some of the individual changes this round include properly handling power management on GPU resets, adjusting thermal protection requirements for DPM, fixing spread spectrum setup, adjusting the power state properly for unified video decoding on Radeon HD 7000 (Souther Islands GPUs), and other UVD/DPM-related changes.

As Phoronix tests have shown, Radeon DPM is fantastic for lower temperatures and better power consumption while delivering better performance for some graphics cards with this open-source driver. Radeon DPM isn't enabled by default on Linux 3.11 but there's an easy how-to for following to enable dynamic power management / re-clocking.

More details on the latest batch of changes can be found via the mailing list pull request.

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 .
Latest Linux Hardware Reviews
  1. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. Btrfs RAID HDD Testing On Ubuntu Linux 14.10
  2. Ubuntu 14.10 Linux 32-bit vs. 64-bit Performance
  3. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  4. MSI: Update Your BIOS From The Linux Desktop
Latest Linux News
  1. SteamOS Update 145 Brings Compositor, Update Fixes
  2. GStreamer 2014 Conference Videos Posted: Wayland, HTML5, 3D
  3. Nouveau Now Supports DRI3 Without GLAMOR
  4. Features Of The Linux 3.18 Kernel
  5. Debian Now Defaults To Xfce On Non-x86 Desktops
  6. Phoenix Is Trying To Be An Open Version Of Apple's Swift
  7. Linux 3.19 To Have Skylake Graphics, PPGTT Enablement
  8. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  9. Imagination Releases Full ISA Documentation For PowerVR Rogue GPUs
  10. Features GNOME Developers Want In The Linux Kernel
Latest Forum Discussions
  1. Users/Developers Threatening Fork Of Debian GNU/Linux
  2. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  3. AMD Releases UVD Video Decode Support For R600 GPUs
  4. HOPE: The Ease Of Python With The Speed Of C++
  5. Proof that strlcpy is un-needed
  6. xbox one tv tuner
  7. Bye bye BSD, Hello Linux: A Sys Admin's Story
  8. Updated and Optimized Ubuntu Free Graphics Drivers