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

The Last ATI/AMD Radeon UMS Driver Release

AMD

Published on 29 June 2012 11:21 AM EDT
Written by Michael Larabel in AMD
Comment On This Article

David Airlie announced the xf86-video-ati 6.14.6 DDX driver release today, which will be the final open-source ATI driver release that supports user-space mode-setting (UMS). Going forward, only Radeon kernel mode-setting (KMS) will be supported.

Today's news shouldn't come as a surprise since I mentioned earlier this month that Radeon user-space mode-setting would be dropped. Radeon KMS has been stable for years now on Linux, new ATI/AMD hardware is only being enabled along the KMS code-paths, the UMS paths are rarely being tested these days, and it's just a lot of old code that can be stripped away.

For the limited open-source Radeon driver development team, this is a big win. The only ones losing out in this situation are those users of Solaris and BSD where there is incomplete kernel mode-setting ports to their kernels. These users will need to stick to the 6.14.x driver series or get onto providing proper Linux-compatible KMS implementations.

The current user-space mode-setting code will be branched in Git should anyone care to take over maintenance on the 6.xx.x series. Meanwhile the KMS-only code will be found in Git master and the open-source Radeon developers will be developing this new code towards an xf86-video-ati 7.0.0 release.

With this xf86-video-ati 6.14.6 release is just two small fixes (including a small UMS fix for fixing CRTC DPMS state checking) and bumping the libdrm requirement to 2.4.36 for KMS support.

The release announcement for this last UMS release can be found on the mailing list. Radeon is the last of the three main open-source drivers (with Intel and Nouveau being the other two) to still support user-space mode-setting.

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 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. Debian Now Defaults To Xfce On Non-x86 Desktops
  2. Phoenix Is Trying To Be An Open Version Of Apple's Swift
  3. Linux 3.19 To Have Skylake Graphics, PPGTT Enablement
  4. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  5. Imagination Releases Full ISA Documentation For PowerVR Rogue GPUs
  6. Features GNOME Developers Want In The Linux Kernel
  7. GTK+ Gains Experimental Overlay Scrollbars
  8. Phoronix Test Suite 5.4 M3 Is Another Hearty Update
  9. GParted 0.20 Improves Btrfs Support
  10. EXT4 In Linux 3.18 Has Clean-ups, Bug Fixes
Latest Forum Discussions
  1. Users/Developers Threatening Fork Of Debian GNU/Linux
  2. Proof that strlcpy is un-needed
  3. xbox one tv tuner
  4. HOPE: The Ease Of Python With The Speed Of C++
  5. Bye bye BSD, Hello Linux: A Sys Admin's Story
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  8. AMD Is Restructuring Again, Losing 7% Of Employees