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

Missing Functionality From The Linux Graphics Drivers

NVIDIA

Published on 16 July 2011 11:41 AM EDT
Written by Michael Larabel in NVIDIA
56 Comments

While NVIDIA yesterday released a new Linux driver, it was quick to be pointed out in our forums that NVIDIA Optimus Technology still is not officially supported under Linux. But that's not all that's missing from their proprietary driver.

Also still missing is support for Fermi overclocking (overclocking the GeForce 400/500 series). Last August is when I mentioned that it was missing and NVIDIA confirmed they had it disabled in their Linux driver (but not under Windows) for all Fermi hardware. When testing out the NVIDIA GeForce GT 520 last week, I noticed the support was still missing when trying to enable CoolBits. I asked NVIDIA's Andy Ritger for a status update concerning Fermi overclocking on Linux, but he hasn't yet responded to that message from five days ago.

Disabling Fermi overclocking support under Linux doesn't make too much sense from the surface. Unlike Optimus, which requires some operating system-specific work and being able to interact with the xorg-server in the right way, the overclocking support should be relatively straight-forward. The GPU overclocking code should be mostly (or entirely) shared across OS platforms and it's working fine under Windows. NVIDIA still supports overclocking pre-Fermi hardware via their proprietary driver too. There's also the open-source reverse-engineered NVClock utility, but that's largely defunct and obviously doesn't have any Fermi support.

Beyond Fermi lacking overclocking support, multi-GPU SLI support was also initially disabled for the GeForce 400/500 hardware. I haven't heard whether or not this support has been enabled yet and I don't have the available hardware to test, but SLI is also supported on pre-Fermi GPUs.

What else is missing from the NVIDIA Linux driver? What about the other open and closed-source Linux graphics drivers? Share in the forums your experiences.

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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  2. Civilization: Beyond Earth Linux GPU/Driver Benchmarks
  3. X.Org Server 1.16.3 Released To Fix Security Issues
  4. Linux 3.19 Merge Window Closes Ahead Of Schedule
  5. MIPS R6 Architecture Now Supported By GCC
  6. LowRISC To Feature Tagged Memory & Minion Cores
  7. Intel Skylake Audio Support For Linux 3.19
  8. After 10+ Years, NetworkManager Reaches v1.0
  9. VDPAU Updated To v0.9
  10. An Open Hardware Random Number Generator Proposed
Latest Forum Discussions
  1. FPS capped on Linux (AMD fglrx drivers)
  2. Need some hand holding with upgrading xserver
  3. Are there an app using HSA ?
  4. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  5. XLennart: A Game For Systemd Haters With Nothing Better To Do
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Debian init discussion in Phoenix Wright format
  8. Bench specific mount point