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

Newer AMD Radeon GPUs Have Had A Tough Time With Linux 3.15

AMD

Published on 13 May 2014 12:00 PM EDT
Written by Michael Larabel in AMD
17 Comments

Besides AMD's R9 290 "Hawaii" open-source support being broken and still not working right even after the hardware has been available to consumers for a half-year, with the Linux 3.15 kernel there's also problems right now for those with newer AMD Radeon GPUs.

In particular, AMD Radeon GPU hangs have been quite common on the release candidates thus far of Linux 3.15. For the past few weeks I have been running into hangs when running demanding OpenGL processes on a system with various Radeon HD 7000 / Rx 200 series graphics cards. Fortunately, a few days ago there's been some upstream notice and work around the issue.

Marek Olšák on Friday reported CIK hangs with kernel 3.15. The AMD open-source developer bisected it and found an issue going back to 3.15-rc1. There were also reports of other users experiencing similar Radeon hardware problems on Linux 3.15. Christian König, the AMD developer responsible for the faulty commit, posted a patch to attempt to fix the issue on Monday. [PATCH] drm/radeon: fix page directory update size estimation. While this patch hasn't yet been mainlined within the Linux 3.15 kernel, it appears to take care of the fallout for those that have tried the small patch, but there's still apparently a performance regression at hand.

Newer AMD Radeon GPUs Have Had A Tough Time With Linux 3.15


Over the past few days I've been working on a big Intel vs. Nouveau vs. Radeon open-source graphics card comparison, albeit that article coming out in the next day or two is limited on the AMD side due to fallout from these issues. Xonotic is one of the games to easily reproduce the 3.15 problems, which of course, is a very common test to the Phoronix Test Suite. When the Radeon issues are settled in upstream Linux 3.15, I'll run some other sort of driver benchmarks. It's also overdue for some new Windows vs. Linux driver benchmarks and open-source vs. closed-source GPU driver tests.

Fortunately, for those that recall, the new PTS / OpenBenchmarking.org test farm is still coming. It was delayed most recently by limited electrical capacity and leaky ceilings/walls, but at the end of June will be moving to a new home/office to allow for plenty more space and electrical capacity. With the daily and per-commit testing of important components like Mesa and the Linux kernel, these issues will be caught on our side much more quickly and with our automated testing software be more helpful in reporting the information to the appropriate sources.

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. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  2. Intel Pentium G3258 On Linux
  3. SilverStone Precision PS10
  4. ASRock Z97 Extreme6
Latest Linux Articles
  1. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  2. KVM Benchmarks On Ubuntu 14.10
  3. X.Org Server 1.16 Officially Released With Terrific Features
  4. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
Latest Linux News
  1. FreeBSD Developing A New Automounter, Other Features
  2. Guix 0.7 Can Now Install The GNU Operating System
  3. X.Org Foundation Still Works Towards Becoming An SPI Project
  4. Open-Source AMD Hawaii Support Should Now Be Working!
  5. KDE Developers Continue Working Toward Wayland Support
  6. Ubuntu 14.04.1 LTS Released
  7. Linux Developers Jump Quickly On ACPI 5.1, Helps Out ARM
  8. Pkg 1.3.0 Released To Improve Package Management On FreeBSD
  9. GOG.com Officially Starts Rolling Out Linux Games
  10. Fedora 21 Has Been Delayed By Three Weeks
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  3. Radeon related kernel bug??
  4. how the US intellegentia operates:
  5. AMD Publishes Open-Source Linux HSA Kernel Driver
  6. Next-Gen OpenGL To Be Announced Next Month
  7. Open-Source Radeon Performance Boosted By Linux 3.16
  8. Remote gui not accessible in Phoronix Test Suite 5.2