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 Benchmarking Platform
Phoromatic Test Orchestration

Intel On Haswell Under Linux: "We've Screwed Up"

Intel

Published on 18 October 2012 04:48 PM EDT
Written by Michael Larabel in Intel
12 Comments

After the change yesterday to now hide early Intel hardware support by default to fend off early driver issues for new graphics hardware -- such as mode-setting just outright failing to work -- Intel has commented a bit more on the driver support for the forthcoming "Haswell" hardware.

Daniel Vetter of Intel's Open-Source Technology Center sent in a drm-intel-fixes pull request that provides bug-fixes for the Intel DRM kernel driver. The main change as part of this pull, which is also for current Linux kernel stable series, is the disabling of Haswell (and Valley View) support by default and hiding it behind the previously talked about kernel module parameter.

Vetter's interesting statement though was: "We've aimed for basic hsw support in 3.6, but due to a few bad happenstances we've screwed up and only 3.8 will have better modeset support than vesa. To avoid yet another round of fallout from such a gaffle on for the next platform we've added a module option to disable early hw support by default. That should also give us more flexibility in bring-up."

Intel admits that it botched the early Haswell Linux support, which has been worked on publicly since March although the actual Haswell hardware won't begin shipping until H1'2013. Intel has had the support now within their DDX driver, Mesa, and Intel DRM driver, but the DRM driver is still being problematic.

The big issue it seems for Haswell with the Linux Direct Rendering Manager driver comes down to shoddy mode-setting right now and there isn't working Embedded DisplayPort (eDP) support in the current kernels. So basically your display might not even light-up if you happen to be toying with some Haswell engineering samples or for some reason are using old kernels when Haswell is introduced next year.

With the Linux 3.8 kernel is where everything will hopefully be ironed out. For Ubuntu users, this means there won't be good "out of the box" support until Ubuntu 13.04, which might be a problem depending upon whether Haswell processors surface before or after next April. For the Valley View Atom SoCs this will likely be a similar story with needing Linux 3.8+ for good support.

Let's hope the timing of the Ivy Bridge successor for once isn't too soon or many Linux desktop users may face a poor out-of-the-box Haswell experience. Let's also hope all of the Haswell bits are in fact worked out for Linux 3.8 and there aren't anymore last minute changes required.

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 Articles & Reviews
  1. GeForce GTX 750 Series: Nouveau vs. NVIDIA Linux Driver Performance
  2. GLAMOR + RadeonSI 2D Acceleration Is Quite Good For Open-Source AMD 2D Performance
  3. AMD Radeon R9 290 OpenGL On Ubuntu 15.04: Catalyst vs. RadeonSI Gallium3D
  4. Ubuntu 15.04 Offers Faster OpenGL For AMD Radeon GPUs On Open-Source
  5. Ubuntu 15.04 Brings Some Graphics Performance Improvements For Intel Haswell
  6. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
Latest Linux News
  1. Steam Linux Usage Drops Below 1%
  2. Many OpenGL ES 3.1 Commits Land In Mesa
  3. HHVM 3.7 Brings More Performance Improvements
  4. Experimental DragonFlyBSD Code Adds Broadwell Graphics
  5. Virt-Manager 1.2.0 Brings OVMF/AAVMF Support For UEFI In VMs
  6. Interesting GSoC 2015 Projects: Wine D3DRM, GameStream, NaCL Fun
  7. An Ubuntu Phone Will Ship This Year With The Converged Unity Experience
  8. Ubuntu 15.10 Is Codenamed The Wily Werewolf
  9. Mono 4 Is Planned For Fedora 23
  10. The Six X.Org Summer GSoC Projects For 2015
Most Viewed News This Week
  1. Trying Out Microsoft Visual Studio Code On Linux
  2. Microsoft Releases New Code IDE For Linux!
  3. Improvements On The Way For GNOME's Nautilus File Manager
  4. A Lot Of Improvements Are Coming For Mir 0.13, Including Work Towards Libinput
  5. Kodi 15.0 Beta 1 Released
  6. Mono 4.0 Makes Use Of Microsoft's Open-Source Code, C# 6.0
  7. Wayland 1.8 Alpha Release Delayed
  8. Lucid Sleep Support Is Being Worked On For The Upstream Linux Kernel