Are you still experiencing this bug in newer Ubuntu releases? ** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1735945 Title: Brightness control not working Status in linux package in Ubuntu: Incomplete Bug description: Brightness control not working ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.10.0-40.44~16.04.1-generic 4.10.17 Uname: Linux 4.10.0-40-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.13 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sat Dec 2 17:53:21 2017 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:3904] InstallationDate: Installed on 2017-11-30 (1 days ago) InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) MachineType: LENOVO 20211 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-40-generic.efi.signed root=UUID=101a39ce-07bc-4b02-87e9-77428c23bae1 ro quiet splash acpi_backlight=vendor vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/10/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 71CN45WW(V1.18) dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900003WIN8 STD MLT dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo IdeaPad P400 Touch dmi.modalias: dmi:bvnLENOVO:bvr71CN45WW(V1.18):bd05/10/2013:svnLENOVO:pn20211:pvrLenovoIdeaPadP400Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadP400Touch: dmi.product.name: 20211 dmi.product.version: Lenovo IdeaPad P400 Touch dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.76-1~ubuntu16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.16.04.2 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Sat Dec 2 16:42:49 2017 xserver.configfile: default xserver.errors: intel(0): Unrecognised backlight control interface 'ideapad' xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 8254 vendor AUO xserver.version: 2:1.19.3-1ubuntu1~16.04.4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1735945/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp