It now works on Ubuntu Vivid only if «acpi_osi=» is added to GRUB. ** Tags added: apport-collected vivid
** Description changed: Backlight keys are not working when logged in the desktop, using /sys/class/backlight/intel_backlight/brightness can adjust the brightness. Usual workarounds listed in https://wiki.ubuntu.com/Kernel/Debugging/Backlight are not working. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.16.0-30-generic 3.16.0-30.40~14.04.1 ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3 Uname: Linux 3.16.0-30-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: Unity Date: Fri Feb 13 15:46:37 2015 SourcePackage: linux-lts-utopic UpgradeStatus: Upgraded to trusty on 2014-03-25 (325 days ago) + --- + ApportVersion: 2.17.2-0ubuntu1.1 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: jerome.poulin 3195 F.... pulseaudio + /dev/snd/controlC1: jerome.poulin 3195 F.... pulseaudio + CurrentDesktop: Unity + DistroRelease: Ubuntu 15.04 + MachineType: ASUSTeK COMPUTER INC. N550JK + Package: linux (not installed) + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: root=/dev/vgUbuntu/root initrd=EFI/ubuntuefi/initrd splash quiet resume=/dev/mapper/vgUbuntu-swap acpi_osi= + ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1 + RelatedPackageVersions: + linux-restricted-modules-3.19.0-22-generic N/A + linux-backports-modules-3.19.0-22-generic N/A + linux-firmware 1.143.2 + Tags: vivid + Uname: Linux 3.19.0-22-generic x86_64 + UpgradeStatus: Upgraded to vivid on 2015-06-12 (44 days ago) + UserGroups: adm dialout docker fuse kismet libvirtd lp messagebus mlocate plugdev pulse-access src sudo users vboxusers video wireshark + _MarkForUpload: True + dmi.bios.date: 09/26/2014 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: N550JK.208 + dmi.board.asset.tag: ATN12345678901234567 + dmi.board.name: N550JK + dmi.board.vendor: ASUSTeK COMPUTER INC. + dmi.board.version: 1.0 + dmi.chassis.asset.tag: No Asset Tag + dmi.chassis.type: 10 + dmi.chassis.vendor: ASUSTeK COMPUTER INC. + dmi.chassis.version: 1.0 + dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN550JK.208:bd09/26/2014:svnASUSTeKCOMPUTERINC.:pnN550JK:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN550JK:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: + dmi.product.name: N550JK + dmi.product.version: 1.0 + dmi.sys.vendor: ASUSTeK COMPUTER INC. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1421834 Title: Backlight keys not working on ASUS N550JK To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1421834/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs