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

Well, There Is No i8xx Fix For Ubuntu 10.10

Ubuntu

Published on 07 September 2010 09:50 AM EDT
Written by Michael Larabel in Ubuntu
22 Comments

Back in July we reported on a GEM-free UMS Intel driver coming about that was targeted for owners of vintage Intel 8xx series hardware to circumvent the stability issues and other problems they commonly have encountered since switching to Intel's newer driver stack with kernel mode-setting and the Graphics Execution Manager. Canonical hoped to ship this UMS code-path in Ubuntu 10.10 that would then be enabled for those with these older Intel integrated graphics processors.

This GEM-free UMS code-path was never merged though into the xf86-video-intel DDX, as it would add about 50,000 lines of code into this open-source X.Org driver and would likely receive little in the way of work and testing. Adding back this UMS code-path also didn't solve all of the problems nor does it address the fundamental issue of KMS/GEM not working well for the old Intel chipsets.

Last month there was a new proposal by Intel's Chris Wilson adds ShadowFB to Intel kernel mode-setting so that you can benefit from KMS with clean mode-setting, a nice display experience, etc. But with using a shadow frame-buffer you will lose any form of 2D/3D/video acceleration. Adding ShadowFB support to the Intel DDX driver though is much less invasive than adding back an entire UMS code-path to the driver so the support burden is much less and it is another bypass to the i8xx cache coherency issues.

While Canonical has been interested in these measures to better the i8xx IGP support in Ubuntu, none of these new changes will work their way into Ubuntu 10.10. There's just a month left to the release of Ubuntu 10.10 "Maverick Meerkat" and we're already into a feature freeze, which is leaving developers scurrying to decide what to do about the Intel hardware support.

Christopher James Halse Rogers is now proposing that Ubuntu either blacklists KMS on the problematic IGPs and thus let the VESA driver handle those i8xx users, drop the i8xx hardware from the X auto-load list to let fbdev take over, or do nothing and let the Intel driver continue functioning with KMS along its normal code-paths. The discussion surrounding this for Ubuntu is on their X mailing list.

The option being most considered at this point is kicking Ubuntu users with Intel i8xx hardware back to using the VESA driver. Of course, this means no form of GPU acceleration for anything, poor user-space mode-setting, and no real display features at all.

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. Ondemand vs. Performance CPU Governing For AMD FX CPUs On Linux 3.17
  2. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  3. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  4. Testing For The Latest Linux Kernel Power Regression
Latest Linux News
  1. Marek Lands Radeon Gallium3D HyperZ Improvements
  2. Mozilla Firefox 32 Surfaces With HTML5, Developer Changes
  3. Nouveau X.Org Driver Released With DRI3+Present, Maxwell, GLAMOR
  4. Microsoft & AMD Release C++ AMP Compiler With Linux Support
  5. AMD, Wine & Valve Dominated August For Linux Users
  6. Linux 3.17-rc3 Kernel Released Back On Schedule
  7. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  8. Mesa 10.3 RC2 Arrives Via Its New Release Manager
  9. Ubuntu 14.10's Lack Of X.Org Server 1.16 Gets Blamed On AMD
  10. MSI Motherboard BIOS Updating Remains A Pain For Linux Users
Latest Forum Discussions
  1. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  2. Best Radeon for a Power Mac G5?
  3. The dangers of Linux kernel development
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. AMD Releases UVD Video Decode Support For R600 GPUs
  6. SSD seems slow
  7. Is laptop with Intel CPU and AMD dGPU worth buying considering especially AMD Enduro?
  8. Radeon HD5670 and Ubuntu 14.04