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

Some Small Progress On Linux GPU Laptop Switching

X.Org

Published on 09 November 2010 01:56 AM EST
Written by Michael Larabel in X.Org
6 Comments

A few weeks ago we reported that notebook hybrid graphics switching on Linux still sucks. For these newer laptops that boast dual GPUs -- an integrated low-power IGP and a more performance-oriented discrete GPU for demanding environments with switching between the two being done "seamlessly" in real-time based upon usage or via a hot-key -- the support under Linux is still virtually nonexistent. There is a crude form of Linux GPU switching, but for the most part it's not nearly up to par for what's available in Microsoft Windows 7 or Apple Mac OS X. The situation remains that way, but some small progress has been made.

Red Hat's David Airlie is reporting on some work done by Matthew Garrett and himself on exploring the situation for those notebooks with combined Intel and NVIDIA graphics. They discovered a WMI driver would need to be written for Linux for passing the ACPI output IDs to the WMI MXDS method for switching the MUX. This at least would support some Intel-NVIDIA notebooks, but evidently Apple notebooks are handled differently without WMI/ACPI, but some Nouveau developers are reverse-engineering that side.

There is yet no working support, but at least some progress is being made in learning how these switch-able notebook graphics processors actually work. Read the blog post here.

Latest Linux Hardware Reviews
  1. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
  2. Mini-Box M350: A Simple, Affordable Mini-ITX Case
  3. Overclocking The AMD AM1 Athlon & Sempron APUs
  4. AMD Athlon 5350 / 5150 & Sempron 3850 / 2650
Latest Linux Articles
  1. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  2. AMD OpenCL Performance With AM1 Kabini APUs
  3. A Quick Look At GCC 4.9 vs. LLVM Clang 3.5
  4. Are AMD Athlon/Sempron APUs Fast Enough For Steam On Linux?
Latest Linux News
  1. Debian To Maintain 6.0 Squeeze As An LTS Release
  2. Wasteland 2 Is Finally Released For Linux Gamers
  3. FreeBSD Advances For ARM, Bhyve, Clang
  4. Ubuntu 14.04 LTS "Trusty Tahr" Officially Released
  5. Ubuntu 12.04 LTS vs. 14.04 LTS Server Benchmarks
  6. QEMU 2.0 Released With ARM, x86 Enhancements
  7. Running The Unity 8 Preview Session On Ubuntu 14.04 LTS
  8. R600 Gallium3D Disables LLVM Back-End By Default
  9. Fedora 21 Gets GNOME 3.12, PHP 5.6, Mono 3.4
  10. Fedora Workstation Is Making Me Quite Excited
  11. Maynard: A Lightweight Wayland Desktop
  12. Chromium Browser Going Through Growing Pains In Ubuntu 14.04
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Radeon 8000M problematic on Linux?
  4. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  5. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  6. Suspected PHP Proxy Issue
  7. Change installation destination from home directory
  8. Bye bye BSD, Hello Linux: A Sys Admin's Story