kernel-packages team mailing list archive

[Per Olav Kroka <per.olav.kroka@xxxxxxxxx>]

I disagree on the status given.  It is not an invalid issue for Ubuntu 
14.04 which uses a kernel of version 3.16.0-x.
The kernel delivered is erroneous and that is what is in the report.

There is also information that fix is available in newer kernels. Thus, 
there can be a backport.

The reason for using the 14.04 is the letters: LTS which implies that 
"this is/are the most stabile version(s)".  I amongst others (I suspect) 
would expect that backports amongst other fixes would be done.

If you do not want to do this fix (by policy or whatever), it is rather 
a "Wont fix".


Den 16. mars 2016 14:20, Christopher M. Penalver skreiv:
> Per Olav Kroka, this bug report is being closed due to your last comment
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507689/comments/8
> regarding this being fixed with an update. For future reference you can
> manage the status of your own bugs by clicking on the current status in
> the yellow line and then choosing a new status in the revealed drop down
> box. You can learn more about bug statuses at
> https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time
> to report this bug and helping to make Ubuntu better. Please submit any
> future bugs you may find.
>
> ** Changed in: linux (Ubuntu)
>         Status: Expired => Invalid
>

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1507689

Title:
  Shaky screen on Lenovo Y70 Touch

Status in linux package in Ubuntu:
  Invalid

Bug description:
  I have a relatively new Lenovo Y70 Touch (came preinstalled with
  Win8).  I installed Ubuntu 14.04 on it.

  By "Shaky" (in the headline) I mean that the image shakes from side to
  side (it seems) about 3 points. Some points end up at the end of the
  previous line.  Very annoying to look at.  Before changing anything,
  the screen driver seems to be an intel driver.  (There is a combined
  NVidia and Intel screen card.)  It is also possible to change the
  screen backlight by using the buttons.

  Searching on the web I found that I could add "nomodeset" to the
  kernel command line.  Doing this stabilizes the screen, but the
  control of the screen backlight disappears.

  If I in addition add "acpi_osi=Linux" and "acpi_backlight=vendor", the
  backlight-control app seems to be back, but there is no reaction to
  any changes. "ls  /sys/class/backlight" now shows the name ideapad.

  Along the way to the current workaround, I have had bumblebee and some
  other software installed and automatically removed as it was not
  needed.

  I believe this applies to other distributions as well.

  Numbered questions and answers (found under "We also need:" in th
  1) Output from "lsb_release -rd":
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04

  2) Outut from "apt-cache policy linux*":
  see attached file "policy"

  3) What I expect to happen:
    a. That the screen would be stabile from the start of the installation
    b. That the backlight control would be available from the start of the installation and not disappear.

  4) What happened instead:
    a. The screen was "shaking" from the start.  (Not a stabile image at all.)
    b. After adding a fix (see above) the screen became stabile but the screen backlight control disappeared.  No remedy has been found for this.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-50-generic 3.16.0-50.67~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-50.67~14.04.1-generic 3.16.7-ckt16
  Uname: Linux 3.16.0-50-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Oct 19 16:34:08 2015
  InstallationDate: Installed on 2015-06-11 (130 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507689/+subscriptions