Re: [Kernel-packages] [Bug 1507689] Re: Shaky screen on Lenovo Y70 Touch
You have it your way. Den 16. mars 2016 15:08, Christopher M. Penalver skreiv: > Per Olav Kroka, Status is defined in https://wiki.ubuntu.com/Bugs/Status > . As you already advised you are using 3.19, unless you personally need > a backport (not if this is theoretically backportable), then it's not a > Won't Fix. > -- 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
Re: [Kernel-packages] [Bug 1507689] Re: Shaky screen on Lenovo Y70 Touch
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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1507689] Re: Shaky screen on Lenovo Y70 Touch
Seems that changing kernel worked. Now running with kernel version 3.19.0-031900. uname -a gives Linux pok-Lenovo-Y70-70-Touch 3.19.0-031900-generic #201504091832 SMP Thu Apr 9 17:35:46 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux -- 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: Expired 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1507689] Re: Shaky screen on Lenovo Y70 Touch
A link to a comment (by "egan") with an image that describes the problem. https://bbs.archlinux.org/viewtopic.php?pid=767666#p767666 Direct link to the image: http://www.pasteall.org/pic/show.php?id=3718 Imagine smaller font, more colors etc, with the same displacement of the pixels... -- 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: Expired 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1507689] Re: Shaky screen on Lenovo Y70 Touch
And a few more linkes http://ubuntuforums.org/showthread.php?t=2265203 https://communities.intel.com/thread/75209?start=0=0 All indicate that an upgrade of the kernel is what I need. -- 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: Expired 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1507689] Re: Shaky screen on Lenovo Y70 Touch
Found some references to what seem to be the same problem on askubuntu http://askubuntu.com/questions/531897/ubuntu-14-04-laptop-screen- shaking-no-problem-on-external-monitor-hdmi-len http://askubuntu.com/questions/562760/ubuntu-shaky-display-problem Seems like I have to update the kernel. (IE. some updates are missing in the 3.16.0-xx kernel) -- 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: Expired 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
Re: [Kernel-packages] [Bug 1507689] Re: Shaky screen on Lenovo Y70 Touch
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" < christopher.m.penal...@gmail.com>: > 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) > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507689/+subscriptions > -- 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: 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
[Kernel-packages] [Bug 1507689] [NEW] Shaky screen on Lenovo Y70 Touch
Public bug reported: 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) ** Affects: linux-lts-utopic (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty ** Attachment added: "apt-cache policy linux*" https://bugs.launchpad.net/bugs/1507689/+attachment/4500474/+files/policy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-utopic in Ubuntu. https://bugs.launchpad.net/bugs/1507689 Title: Shaky screen on Lenovo Y70 Touch Status in linux-lts-utopic package in Ubuntu: New 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:
