Improving Hardware Support in Ubuntu

Anthony Wong, Project Technical Lead at Canonical, presented our process for improving hardware support in Ubuntu at our 2011 Hardware Summit.  He did such a good job that I asked him to distill the essence of his presentation into a blog post. This is what he had to say:

Ubuntu has always been dedicated to providing a great user experience to support a wide variety of hardware on the desktop, by installing the necessary drivers seamlessly during the system installation. Having said that, there are lots of things happening behind the scene to deliver this level of hardware support that is among the best in Linux distributions.

Canonical has been working closely with many Original Equipment Manufacturers (OEMs) for several years in shipping Ubuntu on laptops, desktops and servers. Lots of hardware issues have been found and fixed so that all the major hardware in the machines can be operated correctly.

One of the missions of the Canonical Hardware Enablement (HWE) Team is to track and drive code changes from OEM enablement projects into future Ubuntu releases and upstream. We have a concept of n+1 fixes which we do our best to make sure that those bugs are corrected in our next (that is, n+1) release.

The following two diagrams illustrate how HWE collaborate with upstream maintainers and our kernel team in order to have code fixes flow from OEM projects to Ubuntu distribution and upstream (click on the images to enlarge).

The first scenario depicts the case that a hardware bug is found in an OEM enablement project and no known fix has yet existed.There are generally two ways we can proceed from here, one is to have our engineers develop a fix and submit to upstream, the other one is to report the issue to upstream and work with them until a fix is done, which can then be merged into our kernel. In the former case, once our fix is acknowledged by the upstream maintainers and committed to their git tree, we can then merge it into our n+1 kernel and update the current release via the Stable Release Update (SRU) process.

It’s not unusual to find that issues found in OEM projects have already been resolved in the latest code branches. We will usually verify if they have already been fixed in mainline or the n+1 kernel, and if they have, we will identify the related patches and provide them to the OEM team, and also backport them as SRU’s to the current release. The diagram below shows two cases of such scenario.

We aim to certify any OEM project (e.g. based on 11.10) with the next release of standard Ubuntu (e.g 12.04). 

For more information on how we engage with OEM/ODMs please visit odm.ubuntu.com

 

2 comments

  1. Reza Abdollahi

    There’s a bug in all previous UBUNTU releases with Toshiba U-500 CPU FAN which at start-up the fan wont start automatically.

    there are some retarded ways to fix the bug like putting the laptop to sleep mode so when u wake your laptop up the fan will work as well.

    or you can add a line in …..

    or some other ways but none of the above seems to solve the problem forever and believe me it’s a big risk to the CPU when the fan is not working because it gets hot ( over 110 C ) .

    please fix the bug in the new release .

    thanks.

  2. Don

    Very glad to see Canonical support in this area. I have low cost x86 devices with nVidia ION GFX hardware and ATI Radeon. Ubuntu’s ability to exploit the capabilities of these components (well, Linux in general), if improved, would help wider adoption.

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