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 Benchmarking Platform
Phoromatic Test Orchestration

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 Articles & Reviews
  1. Ubuntu 15.04 Offers Faster OpenGL For AMD Radeon GPUs On Open-Source
  2. Ubuntu 15.04 Brings Some Graphics Performance Improvements For Intel Haswell
  3. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
  4. The Lenovo T450s Is Working Beautifully With Linux
  5. Linux 4.0 SSD EXT4 / Btrfs / XFS / F2FS Benchmarks
  6. Linux 4.0 Hard Drive Comparison With Six File-Systems
Latest Linux News
  1. Intel Haswell/Broadwell Power Use On Linux Still Moving Lower
  2. QEMU 2.3 Officially Released
  3. It's Been Three Years Since The Big Steam Linux Reveal
  4. Debian-Based Distribution Updated With KDE 3.5 Forked Desktop
  5. Intel Is Making Some Progress With Compute Shaders
  6. Linux 4.1-rc1 Kernel Released, Packs In Several New Features
  7. It Doesn't Look Like KDBUS Will Make It For Linux 4.1
  8. Debian 9.0 Is Codenamed Stretch
  9. AMD Radeon GPUs With Linux 4.0 + Mesa 10.6-devel
  10. The Many Features Of The Linux 4.1 Kernel
Most Viewed News This Week
  1. AMD Releases New "AMDGPU" Linux Kernel Driver & Mesa Support
  2. Ubuntu's Desktop-Next Switching From .DEBs To Snappy
  3. Systemd Kills Off Shutdownd
  4. My Favorite Computer Desk Of The Past Decade For Less Than $100
  5. KDBUS Still Hasn't Been Pulled, Might Not Land For Linux 4.1
  6. AMD Open-Sources "Addrlib" From Catalyst
  7. Debian 8.0 Jessie Is Ready For Release This Weekend
  8. Qt Creator 3.4 Brings C++ Programming Improvements & More