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

Nouveau Publishes New Power Management, Re-Clocking Code

Nouveau

Published on 08 November 2013 09:34 AM EST
Written by Michael Larabel in Nouveau
12 Comments

Ben Skeggs of Red Hat published his set of kernel DRM driver changes for Nouveau to enter in the Linux 3.13 kernel... The changes are super exciting as they work on new power management and re-clocking support! From my point of view and that of many Linux enthusiasts, the lack of proper re-clocking support has been the number one limitation of this open-source NVIDIA GPU driver.

Published over the night and already landing into drm-next for Linux 3.13 were the Nouveau DRM changes. While I have yet to come across any official announcement or email pull request, these changes do have re-worked power management and re-clocking support for the driver.

This is huge news since lack of adequate re-clocking has severely limited the driver's performance. See Nouveau vs. NVIDIA Linux vs. NVIDIA Windows 8.1 and Open-Source Nouveau Driver Remains Slow For NVIDIA's Fermi, Kepler.

Among the Nouveau DRM changes include user control of the GPU power state, sysfs interfaces for controlling the new power management code, automatic fan power management by default, many driver fixes throughout, and a lot of underlying work. When it comes to implementing GPU memory re-clocking one of the commits reads, "not even remotely ready for the vast majority of the world."

This new power management / re-clocking code does appear to cover GeForce 400/500/600/700 Fermi and Kepler GPUs, but none of the new code is enabled by default for this release aside from automatic fan power management. Will update when more information is available and will test as soon as the code lands in Linux 3.13 mainline Git, but for now you can browse through the code yourself from the Nouveau DRM Git repository.

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 980: The Best GPU For Linux Gamers
  2. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  3. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
  4. Scythe Mugen MAX
Latest Linux Articles
  1. Preview: Radeon Gallium3D Performance For CS:GO On Linux
  2. XWayland Linux Gaming Performance With GNOME Wayland On Fedora 21
  3. EXT4/Btrfs/XFS/F2FS Benchmarks On Linux 3.17
  4. Fedora 21 Alpha First Impressions: It's Great
Latest Linux News
  1. CS:GO For Linux Gains Better Stability, Community Server Support
  2. NVIDIA Issues Updated 340.46 Long-Lived Driver Release
  3. KDE Plasma 5.1 Now In Beta
  4. Systemd & Debian Were Most Popular In September
  5. Microsoft Announces... Windows 10 With A Start Menu
  6. Borderlands 2 Launches On Steam For Linux
  7. Debian Jessie Might Get Rid Of The kFreeBSD Port
  8. Fedora Might Try A New Scheduling Strategy For Its Releases
  9. AMD's Catalyst Working On A GLSL Shader Cache
  10. OpenMP 4.0 Offloading Is Closer For GCC 5
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Nero CD/DVD Burning Software On Linux Is Dead
  3. New Group Calls For Boycotting Systemd
  4. FSF Issues Statement On Shellshock Bash Vulnerability
  5. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  6. X.Org Is Looking For Some Female Help
  7. Advertisements On Phoronix
  8. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images