I've just realized that using kernel 3.14.0 always make brightness reset to 100% after startup, even with hard reboot. That's not happen with kernel 3.2.0.
I don't know if related with Bug #870805 ? -- 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/1155169 Title: [HP Pavilion dm3-1109tu Entertainment Notebook PC] Brightness Keys not working after restarting system from Windows 7 Status in “linux” package in Ubuntu: Triaged Bug description: In Windows 7 when I restart my laptop and boot into Ubuntu, brightness keys don't work. WORKAROUND: I shutdown my laptop then power on again to Ubuntu. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-38.61-generic-pae 3.2.37 Uname: Linux 3.2.0-38-generic-pae i686 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu17.1 Architecture: i386 CheckboxSubmission: 7191766c97add1468cdb96d5e05a7079 CheckboxSystem: b845c366ea09c60efa3a45c1b5b21525 CompizPlugins: [core,composite,opengl,imgjpeg,decor,imgpng,snap,obs,gnomecompat,vpswitch,compiztoolbox,resize,regex,dbus,mousepoll,grid,place,animation,move,session,workarounds,switcher,expo,wall,fade,scale] CompositorRunning: compiz Date: Thu Mar 14 21:44:57 2013 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, GraphicsCard: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:3649] Subsystem: Hewlett-Packard Company Device [103c:3649] InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3) MachineType: Hewlett-Packard HP Pavilion dm3 Notebook PC MarkForUpload: True ProcEnviron: PATH=(custom, no user) LANG=en_US.utf8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-38-generic-pae root=UUID=2E2462FD2462C783 loop=/hostname/disks/root.disk ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2010 dmi.bios.vendor: Insyde Corp. dmi.bios.version: F.19 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 3649 dmi.board.vendor: Hewlett-Packard dmi.board.version: 41.3D dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnInsydeCorp.:bvrF.19:bd11/16/2010:svnHewlett-Packard:pnHPPaviliondm3NotebookPC:pvr0487110000241F10110120000:rvnHewlett-Packard:rn3649:rvr41.3D:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.name: HP Pavilion dm3 Notebook PC dmi.product.version: 0487110000241F10110120000 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.7.12-0ubuntu1 version.libdrm2: libdrm2 2.4.39-0ubuntu0.1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-0ubuntu0.4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-0ubuntu0.4 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.12 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.3 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build3 --- ApportVersion: 2.13.2-0ubuntu2 Architecture: i386 CasperVersion: 1.337 CurrentDesktop: Unity DistUpgraded: Fresh install DistroCodename: trusty DistroRelease: Ubuntu 14.04 DistroVariant: ubuntu LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140208) MachineType: Hewlett-Packard HP Pavilion dm3 Notebook PC Package: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 PackageArchitecture: i386 ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity ProcVersionSignature: Ubuntu 3.13.0-8.27-generic 3.13.2 Tags: trusty ubuntu single-occurrence reproducible Uname: Linux 3.13.0-8-generic i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/16/2010 dmi.bios.vendor: Insyde Corp. dmi.bios.version: F.19 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 3649 dmi.board.vendor: Hewlett-Packard dmi.board.version: 41.3D dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnInsydeCorp.:bvrF.19:bd11/16/2010:svnHewlett-Packard:pnHPPaviliondm3NotebookPC:pvr0487110000241F10110120000:rvnHewlett-Packard:rn3649:rvr41.3D:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.name: HP Pavilion dm3 Notebook PC dmi.product.version: 0487110000241F10110120000 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu4 version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.909-0ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Sun Feb 9 13:33:23 2014 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 8236 vendor AUO xserver.version: 2:1.15.0-1ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1155169/+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