Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.11 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/v4.11-rc3 ** 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/1674041 Title: Keyboard backlight Status in linux package in Ubuntu: Incomplete Bug description: Key board backlight ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-66-generic 4.4.0-66.87 ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 Uname: Linux 4.4.0-66-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ganesh 2631 F.... pulseaudio /dev/snd/controlC0: ganesh 2631 F.... pulseaudio CurrentDesktop: Unity Date: Sun Mar 19 07:59:13 2017 HibernationDevice: RESUME=UUID=eaee8605-adf5-4562-9b5a-c277f2681e6b InstallationDate: Installed on 2016-11-17 (121 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. Inspiron 5437 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-66-generic root=UUID=3e120dcd-025c-491f-a62c-c4fbc272f381 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-66-generic N/A linux-backports-modules-4.4.0-66-generic N/A linux-firmware 1.157.8 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: A10 dmi.board.name: 0DD2R1 dmi.board.vendor: Dell Inc. dmi.board.version: A10 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA10:bd06/07/2016:svnDellInc.:pnInspiron5437:pvrNotSpecified:rvnDellInc.:rn0DD2R1:rvrA10:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Inspiron 5437 dmi.product.version: Not Specified dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674041/+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
