Using /sys/class/backlight/intel_backlight did the trick. Thanks a lot! Can I offer you any help with e.g. documenting the bug in return?
On Mon, Mar 25, 2013 at 4:46 PM, Chris Wilson <ch...@chris-wilson.co.uk>wrote: > ls /sys/class/backlight > > You can override which backlight is used with a snippet: > > Section "Device" > Identifier "Device0" > Option "Backlight" "name_of_backlight" > EndSection > > in /etc/X11/xorg.conf.d/backlight.conf > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1158934 > > Title: > Backlight can't be controlled > > Status in “xserver-xorg-video-intel” package in Ubuntu: > New > > Bug description: > When pressing the keys to increase or decrease backlight, or even > using the Display dialog's slider, backlight doesn't change. However, > the backlight level indicated by the prompt does change. The hardware > in question is an HP ProBook 6570b laptop. > > ProblemType: Bug > DistroRelease: Ubuntu 13.04 > Package: xorg 1:7.7+1ubuntu4 > ProcVersionSignature: Ubuntu 3.8.0-13.23-generic 3.8.3 > Uname: Linux 3.8.0-13-generic x86_64 > NonfreeKernelModules: wl > .tmp.unity.support.test.0: > > ApportVersion: 2.9.2-0ubuntu2 > 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 > Date: Fri Mar 22 19:31:40 2013 > DistUpgraded: 2013-01-27 21:36:15,133 DEBUG enabling apt cron job > DistroCodename: raring > DistroVariant: ubuntu > DkmsStatus: > bcmwl, 6.20.155.1+bdcom, 3.8.0-12-generic, x86_64: installed > bcmwl, 6.20.155.1+bdcom, 3.8.0-13-generic, x86_64: installed > virtualbox, 4.2.8, 3.8.0-12-generic, x86_64: installed > virtualbox, 4.2.8, 3.8.0-13-generic, x86_64: installed > ExtraDebuggingInterest: Yes, including running git bisection searches > GraphicsCard: > Intel Corporation 3rd Gen Core processor Graphics Controller > [8086:0166] (rev 09) (prog-if 00 [VGA controller]) > Subsystem: Hewlett-Packard Company Device [103c:17ab] > InstallationDate: Installed on 2012-11-13 (129 days ago) > InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 > (20121017.5) > MachineType: Hewlett-Packard HP ProBook 6570b > MarkForUpload: True > ProcEnviron: > TERM=xterm > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=en_US.UTF-8 > SHELL=/bin/bash > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-13-generic > root=UUID=1a9c19c9-524c-47a2-89da-6dd88cb8f2ee ro quiet splash vt.handoff=7 > SourcePackage: xorg > Symptom: display > UpgradeStatus: Upgraded to raring on 2013-01-27 (53 days ago) > dmi.bios.date: 09/24/2012 > dmi.bios.vendor: Hewlett-Packard > dmi.bios.version: 68ICE Ver. F.31 > dmi.board.name: 17AB > dmi.board.vendor: Hewlett-Packard > dmi.board.version: KBC Version 42.32 > dmi.chassis.type: 10 > dmi.chassis.vendor: Hewlett-Packard > dmi.modalias: > dmi:bvnHewlett-Packard:bvr68ICEVer.F.31:bd09/24/2012:svnHewlett-Packard:pnHPProBook6570b:pvrA1029D1102:rvnHewlett-Packard:rn17AB:rvrKBCVersion42.32:cvnHewlett-Packard:ct10:cvr: > dmi.product.name: HP ProBook 6570b > dmi.product.version: A1029D1102 > dmi.sys.vendor: Hewlett-Packard > version.compiz: compiz 1:0.9.9~daily13.03.20-0ubuntu1 > version.ia32-libs: ia32-libs 20090808ubuntu36 > version.libdrm2: libdrm2 2.4.42-0ubuntu2 > version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.3-0ubuntu1 > version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A > version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.3-0ubuntu1 > version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu3 > version.xserver-xorg-input-evdev: xserver-xorg-input-evdev > 1:2.7.3-0ubuntu2b2 > version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 > version.xserver-xorg-video-intel: xserver-xorg-video-intel > 2:2.21.5-0ubuntu1 > version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau > 1:1.0.6-0ubuntu3b1 > xserver.bootTime: Fri Mar 22 19:28:05 2013 > xserver.configfile: default > xserver.errors: > > xserver.logfile: /var/log/Xorg.0.log > xserver.version: 2:1.13.3-0ubuntu3 > xserver.video_driver: intel > > To manage notifications about this bug go to: > > https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1158934/+subscriptions > -- Best regards Gard Gard Vaaler - Dataloy Systems P: +47 55 36 03 00 twitter.com/dataloy www.dataloy-systems.com -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1158934 Title: Backlight can't be controlled Status in “xserver-xorg-video-intel” package in Ubuntu: New Bug description: When pressing the keys to increase or decrease backlight, or even using the Display dialog's slider, backlight doesn't change. However, the backlight level indicated by the prompt does change. The hardware in question is an HP ProBook 6570b laptop. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-13.23-generic 3.8.3 Uname: Linux 3.8.0-13-generic x86_64 NonfreeKernelModules: wl .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu2 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 Date: Fri Mar 22 19:31:40 2013 DistUpgraded: 2013-01-27 21:36:15,133 DEBUG enabling apt cron job DistroCodename: raring DistroVariant: ubuntu DkmsStatus: bcmwl, 6.20.155.1+bdcom, 3.8.0-12-generic, x86_64: installed bcmwl, 6.20.155.1+bdcom, 3.8.0-13-generic, x86_64: installed virtualbox, 4.2.8, 3.8.0-12-generic, x86_64: installed virtualbox, 4.2.8, 3.8.0-13-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:17ab] InstallationDate: Installed on 2012-11-13 (129 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: Hewlett-Packard HP ProBook 6570b MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-13-generic root=UUID=1a9c19c9-524c-47a2-89da-6dd88cb8f2ee ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to raring on 2013-01-27 (53 days ago) dmi.bios.date: 09/24/2012 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68ICE Ver. F.31 dmi.board.name: 17AB dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 42.32 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68ICEVer.F.31:bd09/24/2012:svnHewlett-Packard:pnHPProBook6570b:pvrA1029D1102:rvnHewlett-Packard:rn17AB:rvrKBCVersion42.32:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 6570b dmi.product.version: A1029D1102 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.9~daily13.03.20-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.42-0ubuntu2 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.3-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.3-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.5-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu3b1 xserver.bootTime: Fri Mar 22 19:28:05 2013 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.13.3-0ubuntu3 xserver.video_driver: intel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1158934/+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