[Kernel-packages] [Bug 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Expired Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Mark, the next step is to fully reverse commit bisect from kernel 4.2 to 4.4-rc4 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ? Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags removed: kernel-bug-fixed-upstream kernel-bug-fixed-upstream-4.4-rc4 ** Tags added: kernel-fixed-upstream kernel-fixed-upstream-4.4-rc4 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Also, I downgraded to 4.2.0-19-generic and the bug shows again. -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
(I just reinstalled from scratch to version 15.10 today and the kernel version was the one I noted above) -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
I've tested it with v4.4-rc4-wily, and the bug does not exist, leaving only intel_backlight with the default GRUB configuration (no extra options except "quiet splash"). While installing the upstream kernel, though, there was a warning: W: Possible missing firmware /lib/firmware/i915/skl_guc_ver4.bin for module i915 ** Tags removed: kernel-bug-exists-upstream ** Tags added: kernel-bug-fixed-upstream kernel-bug-fixed-upstream-4.4-rc4 ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Tags added: wily -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Packages that I installed: linux-image-4.4.0-040400rc4-generic_4.4.0-040400rc4.201512061930_amd64.deb linux-headers-4.4.0-040400rc4_4.4.0-040400rc4.201512061930_all.deb linux-headers-4.4.0-040400rc4-generic_4.4.0-040400rc4.201512061930_amd64.deb -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Mark, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com /~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Mark, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com /~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results. Thank you for your understanding. -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. Issue: the intel_backlight device should be used, the workaround above disables the other devices, leaving only one, thus no conflicts occur. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
I just upgraded the kernel on 15.04 to the latest available in the repository. Though when I reverted the settings to the default, the bug is still reproducible. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Description changed: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. - Workaround: If no changes are made to boot options, and + Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness - is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. + is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. + + Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 + acpi_backlight=vendor" fully fix the bug behavior and retain the + brightness control. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO ** Description changed: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. - Workaround: If no changes are made to boot options, and + Old workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness - is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. + is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Workaround 2: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" fully fix the bug behavior and retain the brightness control. + + Issue: the intel_backlight device should be used, the workaround above + disables the other devices, leaving only one, thus no conflicts occur. + Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions:
[Kernel-packages] [Bug 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
@penalvch, Sorry, I have updated my bios since then, and yes, it still repeated. -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
dmidecode: H3ET75WW (1.12) 03/03/2015 (But the official utuility says that it is already the latest version) ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Mark, as per http://support.lenovo.com/us/en/products/laptops-and- netbooks/thinkpad-edge-laptops/thinkpad-edge-e330 an update to your computer's buggy and outdated BIOS is available (1.12). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible, and the information above is provided, then please mark this report Status Confirmed. Otherwise, please mark this as Invalid. Thank you for your understanding. -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
I have found a normal fix/workaround for the bug, which removes the flicker and still keeps the controls working: Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" ** Tags removed: bios-outdated-1.12 ** Tags added: bios-out2 ** Tags removed: bios-out2 ** Tags added: kernel-bug kernel-bug-exists-upstream -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
This bug was repeatable on other Linux distros: Fedora, etc. -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Tags added: bios-outdated-1.12 -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Mark is this reproducible on the latest mainline kernel (4.3-rc3)? ** Tags removed: bios-outdated-1.12 ** Tags added: latest-bios-1.12 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Tags added: bios-outdated-1.12 -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 > /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 > /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: fwts https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449316/+files/fwts -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: ssdt6.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449308/+files/ssdt6.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: ssdt1.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449313/+files/ssdt1.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: acpi https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449322/+files/acpi -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: version.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449294/+files/version.log -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: ssdt3.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449311/+files/ssdt3.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: dsdt.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449318/+files/dsdt.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: vendorbacklight https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449306/+files/vendorbacklight -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: results.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449314/+files/results.log -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: backlight https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449320/+files/backlight -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: dmidecode.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449319/+files/dmidecode.log -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: ssdt5.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449309/+files/ssdt5.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: ssdt2.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449312/+files/ssdt2.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: acpidump.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449321/+files/acpidump.txt -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: dsdt.dsl https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449317/+files/dsdt.dsl -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: ssdt7.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449307/+files/ssdt7.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: fwts_method https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449315/+files/fwts_method -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment added: ssdt4.dat https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449310/+files/ssdt4.dat -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: New Bug description: Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Description changed: + Behavior is the same on Ubuntu 14.04 -- 15.04. + Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. - However, - echo 8 /sys/class/backlight/intel_backlight/brightness + However, + echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. But if no changes are made, and - echo 4437 /sys/class/backlight/intel_backlight/brightness + echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC0: mark 1391 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.19.0-26-generic N/A - linux-backports-modules-3.19.0-26-generic N/A - linux-firmware 1.143.3 + linux-restricted-modules-3.19.0-26-generic N/A + linux-backports-modules-3.19.0-26-generic N/A + linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO ** Description changed: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. - But if no changes are made, and + Workaround: If no changes are made to boot options, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works. + Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias:
[Kernel-packages] [Bug 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Description changed: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 /sys/class/backlight/intel_backlight/brightness - is done, the flicker stops and the GUI control / acpi_video0 works. + is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias:
[Kernel-packages] [Bug 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
** Attachment removed: acpidump.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449321/+files/acpidump.txt ** Attachment removed: acpi https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+attachment/4449322/+files/acpi -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Confirmed Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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 1486896] Re: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly.
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.2 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as Confirmed. Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc7-unstable/ ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete -- 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/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. Status in linux package in Ubuntu: Incomplete Bug description: Behavior is the same on Ubuntu 14.04 -- 15.04. Steps were taken according to this: https://wiki.ubuntu.com/Kernel/Debugging/Backlight With acpi_backlight=vendor, the flicker stops, and the brightness control doesn't work. However, echo 8 /sys/class/backlight/intel_backlight/brightness dims the screen. thinkpad-acpi.brightness_enable = 1 does nothing. Workaround: If no changes are made to boot options, and echo 4437 /sys/class/backlight/intel_backlight/brightness is done, the flicker stops and the GUI control / acpi_video0 works, but causes flicker again. Attaching the necessary files. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-26-generic 3.19.0-26.28 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: mark 1391 F pulseaudio CurrentDesktop: Unity Date: Thu Aug 20 11:21:39 2015 HibernationDevice: RESUME=UUID=7a9e1f17-c57b-4e6f-bb0c-0b090b5d1405 InstallationDate: Installed on 2014-08-22 (363 days ago) InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64 (20140722.2) MachineType: LENOVO 3354DGG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=b566feb2-5a5c-4573-8782-b78d130dbc45 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-generic N/A linux-backports-modules-3.19.0-26-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-08-20 (0 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: LENOVO dmi.bios.version: H3ET72WW(1.09) dmi.board.asset.tag: Not Available dmi.board.name: 3354DGG dmi.board.vendor: LENOVO dmi.board.version: 0B98409 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH3ET72WW(1.09):bd02/25/2013:svnLENOVO:pn3354DGG:pvrThinkPadEdgeE330:rvnLENOVO:rn3354DGG:rvr0B98409Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3354DGG dmi.product.version: ThinkPad Edge E330 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+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
