*** This bug is a duplicate of bug 1098216 *** https://bugs.launchpad.net/bugs/1098216
** This bug has been marked a duplicate of bug 1098216 Regression in brightness control on Lenovo Thinkpad X230 (+tablet) and X1 Carbon -- 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/1207487 Title: Brightness Controls work but brightness doesnt change Status in “linux” package in Ubuntu: Expired Bug description: I am unable to change the brigthness of the screen, the controls work properly but changing the brightness level has no impact on the screen brightness. It feels like the old intel brightness regression bug. The brightness is always at the full level. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xorg 1:7.7+1ubuntu5 ProcVersionSignature: Ubuntu 3.10.0-5.15-generic 3.10.2 Uname: Linux 3.10.0-5-generic x86_64 ApportVersion: 2.11-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Fri Aug 2 00:35:28 2013 DistUpgraded: Fresh install DistroCodename: saucy DistroVariant: ubuntu DkmsStatus: bbswitch, 0.7, 3.10.0-3-generic, x86_64: installed bbswitch, 0.7, 3.10.0-4-generic, x86_64: installed bbswitch, 0.7, 3.10.0-5-generic, x86_64: installed nvidia-304, 304.88, 3.10.0-4-generic, x86_64: installed nvidia-304, 304.88, 3.10.0-5-generic, x86_64: installed DpkgLog: ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:397d] NVIDIA Corporation GF108M [GeForce GT 520M] [10de:0df7] (rev ff) (prog-if ff) InstallationDate: Installed on 2013-06-02 (60 days ago) InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Alpha amd64 (20130601) MachineType: LENOVO HuronRiver Platform MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.10.0-5-generic root=UUID=f80879ea-b397-4778-bb59-f9fb5c8fa4ce ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/21/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 45CN38WW dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Emerald Lake dmi.board.vendor: LENOVO dmi.board.version: FAB1 dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnLENOVO:bvr45CN38WW:bd10/21/2011:svnLENOVO:pnHuronRiverPlatform:pvrIdeapadZ570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1: dmi.product.name: HuronRiver Platform dmi.product.version: Ideapad Z570 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.45-2ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.14.2-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2.1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.9-0ubuntu3 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.8-0ubuntu1.1 xserver.bootTime: Thu Aug 1 22:15:43 2013 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.14.2-0ubuntu1 xserver.video_driver: intel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1207487/+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