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

Power Management Patches For Nouveau, Finally

Nouveau

Published on 15 September 2010 08:52 AM EDT
Written by Michael Larabel in Nouveau
13 Comments

While the Nouveau kernel mode-setting / DRM driver has been living in the mainline Linux kernel for nearly one year and the open-source developers working on this reverse-engineered NVIDIA driver have a working Gallium3D driver (we have updated Nouveau Gallium3D benchmarks coming out during Oktoberfest), their support for NVIDIA power management has always been a struggle. The Nouveau power management situation though just received a big boost, that will hopefully lead to finally allowing your NVIDIA GPU with this open-source driver to run cooler and pull less power.

Martin Peres is a French developer now working on the Nouveau driver and in particular has been focusing on developing the power management architecture based upon the reverse-engineering work of other Nouveau developers. This morning before leaving for XDS in Toulouse he announced his Nouveau power management work that includes support for parsing the NVIDIA BIOS for the necessary power management bits (with the NV40 to NV96 ASICs) and then voltage and clock settings for the NVIDIA graphics cards.

While this is a great milestone, this Nouveau power management support isn't yet endorsed for end-users and is not yet ready to be merged. Besides the clock and voltage adjustments needing to be tested on more GeForce/Quadro graphics cards, support for adjusting the memory timings still needs to be done but is currently being reverse-engineered from NVIDIA's binary driver by another developer, and then support for implementing fan control support.

Details on this Nouveau power management patch and how to test it out can be found on the Nouveau mailing list. This code can also be pulled via Git from PathScale's power management Nouveau tree. PathScale previously offered up free NVIDIA Fermi graphics cards to those open-source developers looking forward to working on supporting the new GeForce 400 series graphics cards.

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 Articles & Reviews
  1. Intel Broadwell: GCC 4.9 vs. LLVM Clang 3.5 Compiler Benchmarks
  2. Ubuntu vs. Fedora Linux On Lenovo's X1 Carbon With Core i7 Broadwell
  3. Ubuntu 15.04 Is The Easy Path To Better Performance On Intel Broadwell
  4. NVIDIA's Latest Maxwell Line-Up Against AMD With Catalyst On Linux
  5. Preliminary Tests Of Intel Sandy Bridge & Ivy Bridge vs. Broadwell
  6. AMD FX-8320E Performance On Linux
Latest Linux News
  1. Perl 6.0 Might Finally Be Released This Year
  2. Freedreno's MSM Driver Has New Features For Linux 3.20
  3. I Switched (Back) Over To Fedora As My Main OS & It's Going Great!
  4. Windows 10, PS4, C4 & Systemd News Kicked Off 2015
  5. Calamares 1.0 Distribution-Independent Installer Framework Released
  6. Librem 15 Linux Laptop Set To Close At Around $400k USD
  7. Virtual GEM To Increase Mesa's Software Rasterizer Performance
  8. Open Lunchbox: Yet Another Open-Source Laptop Attempt
  9. Wayland/Weston 1.7 Release Candidate
  10. Bugzilla 5.0 Is Coming Soon With New Features
Most Viewed News This Week
  1. PlayStation 4 System Compiler Support Landing In LLVM
  2. Does VirtualBox VM Have Much A Future Left?
  3. Linux "GHOST" Vulnerability Hits Glibc Systems
  4. LibreOffice 4.4 Is Coming Soon With New Features
  5. LLVM Adds Options To Do Fuzz Testing
  6. LibreOffice 4.4 Released With Better OOXML Support, UI Improvements
  7. Inkscape 0.91 Goes Through C++ Code Conversion, New Cairo Rendering, OpenMP Filters
  8. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell