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

AMD Will Properly Support KWin With Catalyst

AMD

Published on 25 February 2012 03:51 PM EST
Written by Michael Larabel in AMD
43 Comments

For those AMD Catalyst users that were concerned by the recent statements of Martin Gräßlin that KWin will likely end up dropping their GL1 renderer, which would eliminate vintage GPU hardware support as well as Catalyst driver support, fear not.

While the latest AMD Catalyst driver fully supports up to OpenGL 4, within the KWin compositing window manager for the KDE desktop it defaults to using the OpenGL 1.x renderer. The GL1 renderer is used with the AMD binary blob since using the newer OpenGL 2.x renderer is troublesome for Catalyst. Meanwhile for the NVIDIA binary driver and even the open-source Mesa/Gallium3D drivers, the GL2 renderer works without fault.

Martin's looking at dropping the GL1 renderer since it's just used by Catalyst and old graphics processors (those that are nearly a decade old) so it's not worth the maintenance costs. Dropping the GL1 renderer right now would mean those Catalyst driver users with even the latest Radeon HD 6000/7000 series hardware would be faced by a challenging experience on the KDE desktop.

Fortunately, Martin's unlikely to drop this old renderer for a few months and AMD will be providing proper KWin support at some point going forward (i.e. the proper GL/GLES renderer with direct rendering should be bug-free or at least with minimal issues).

In this ATI bug entry, an AMD engineer mentions, "We are working on the issue and will support direct render for kwin." But when AMD will end up releasing a driver that properly supports KWin is another question... Hopefully it will be by later this calendar year so there will be no fallout for KDE users.

Thanks to "markg85" for mentioning this BugZilla entry.

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. Preview: AMD's FX-9590 Eight-Core At Up To 5.0GHz On Linux
  2. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  3. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  4. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
Latest Linux Articles
  1. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  2. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  3. Testing For The Latest Linux Kernel Power Regression
  4. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
Latest Linux News
  1. Nouveau X.Org Driver Released With DRI3+Present, Maxwell, GLAMOR
  2. Microsoft & AMD Release C++ AMP Compiler With Linux Support
  3. AMD, Wine & Valve Dominated August For Linux Users
  4. Linux 3.17-rc3 Kernel Released Back On Schedule
  5. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  6. Mesa 10.3 RC2 Arrives Via Its New Release Manager
  7. Ubuntu 14.10's Lack Of X.Org Server 1.16 Gets Blamed On AMD
  8. MSI Motherboard BIOS Updating Remains A Pain For Linux Users
  9. See How Your Linux System Performs Against The Latest Intel/AMD CPUs
  10. AMD Steppe Eagle Flys To Coreboot
Latest Forum Discussions
  1. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  2. The dangers of Linux kernel development
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. AMD Releases UVD Video Decode Support For R600 GPUs
  5. SSD seems slow
  6. Is laptop with Intel CPU and AMD dGPU worth buying considering especially AMD Enduro?
  7. Radeon HD5670 and Ubuntu 14.04
  8. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs