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. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  2. Intel 120GB 530 Series SSD Linux Performance
  3. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
  4. AMD's Windows Catalyst Driver Remains Largely Faster Than Linux Drivers
Latest Linux Articles
  1. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
  2. Is The Open-Source NVIDIA Driver Fast Enough For Steam On Linux Gaming?
  3. Linux 3.18 File-System Performance Minimally Changed But Possible Regressions
  4. AMD Radeon Gallium3D Is Catching Up & Sometimes Beating Catalyst On Linux
Latest Linux News
  1. Linux 3.18-rc6 Released, A Worrisome Regression Remains
  2. HandBrake 0.10 Brings H.265 & VP8 Encoders
  3. Gngr: A New Web Browser Focused On Privacy
  4. Linux 3.18 Kernel: Not Much Change With Intel Haswell Performance
  5. More File-System Tests Of The Linux 3.18 Kernel
  6. Using NVIDIA's NVENC On Linux With FFmpeg
  7. There's Talk Again About An "Open To The Core" Ubuntu Laptop
  8. PowerVR SGX Driver Code Gets Leaked
  9. V2 Of KDBUS Published For Linux Kernel Review
  10. VirtualBox 4.3.20 Arrives, Still No Sign Of VirtualBox 4.4
Latest Forum Discussions
  1. PulseAudio 6.0 Is Coming & Other Linux Audio Plans For The Future
  2. Debian Developer Resigns From The Systemd Maintainership Team
  3. Roadmap to Catalyst 14.10 ?
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Cant get working Kaveri APU - A10-7850k
  6. Script for Fan Speed Control
  7. Debian Init System Coupling Vote Results
  8. The Slides Announcing The New "AMDGPU" Kernel Driver