I do not have the machine with me.  It will have to wait until newyear.
Do I have to make it be shaky when the command is executed?
22. des. 2015 14:11 skrev "Christopher M. Penalver" <
<email address hidden>>:

> Per Olav Kroka, thank you for taking the time to report this bug and
> helping to make Ubuntu better. Please execute the following command only
> once, as it will automatically gather debugging information, in a terminal:
> apport-collect 1507689
>
> ** Package changed: linux-lts-utopic (Ubuntu) => linux (Ubuntu)
>
> ** Changed in: linux (Ubuntu)
>    Importance: Undecided => Low
>
> ** Changed in: linux (Ubuntu)
>        Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1507689
>
> Title:
>   Shaky screen on Lenovo Y70 Touch
>
> Status in linux package in Ubuntu:
>   Incomplete
>
> 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)
>
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>