Public bug reported: I have no screen brightness control on my Asus G75VW laptop with Nvidia GeForce 660m GTX. I've observed this on 12.04 and 12.10 alpha through beta1.
This is what I've tried: -- Pressing Fn+F5/F6 doesn't do anything; it should increase/decrease screen brightness. -- Looking at the System Settings > Brightness and Lock option, I can move the brightness slider, however, it doesn't do anything either. -- Added 'Option "RegistryDwords" "EnableBrightnessControl=1"' to xorg.conf, and get nothing. -- installed "nvidiabl" from https://github.com/guillaumezin/nvidiabl/downloads, and get nothing. This is very frustrating and I would like to be able to have brightness control as I have under Win7. FYI - I've had a Dell XPS, which did work just fine, and a MacBook Pro, which also had functioning screen brightness. Help. :) ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: nvidia-current-updates 304.43-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-14.16-generic 3.5.3 Uname: Linux 3.5.0-14-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 304.43 Sun Aug 19 20:14:03 PDT 2012 GCC version: gcc version 4.7.1 20120908 (prerelease) (Ubuntu/Linaro 4.7.1-8ubuntu1) .proc.driver.nvidia.warnings.fbdev: Your system is not currently configured to drive a VGA console on the primary VGA device. The NVIDIA Linux graphics driver requires the use of a text-mode VGA console. Use of other console drivers including, but not limited to, vesafb, may result in corruption and stability problems, and is not supported. ApportVersion: 2.5.1-0ubuntu7 Architecture: amd64 Date: Tue Sep 11 15:32:09 2012 DistUpgraded: Fresh install DistroCodename: quantal DistroVariant: ubuntu DkmsStatus: nvidiabl, 0.79, 3.5.0-14-generic, x86_64: installed nvidia-current-updates, 304.43, 3.5.0-14-generic, x86_64: installed virtualbox, 4.1.18, 3.5.0-14-generic, x86_64: installed GraphicsCard: NVIDIA Corporation Device [10de:0fd4] (rev a1) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:2115] MachineType: ASUSTeK COMPUTER INC. G75VW ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-14-generic root=UUID=de84658b-c26c-4549-b14b-e5ce05119c6c ro elevator=noop quiet splash vt.handoff=7 SourcePackage: nvidia-graphics-drivers-updates UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/15/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: G75VW.210 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: G75VW 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.:bvrG75VW.210:bd06/15/2012:svnASUSTeKCOMPUTERINC.:pnG75VW:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG75VW:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: G75VW dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz 1:0.9.8.0-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.39-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0~git20120903.e1673d20.is.git20120821.c1114c61-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0~git20120903.e1673d20.is.git20120821.c1114c61-0ubuntu1 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.6-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A ** Affects: nvidia-graphics-drivers-updates (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug quantal ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-updates in Ubuntu. https://bugs.launchpad.net/bugs/1049359 Title: No Brightness Control To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-updates/+bug/1049359/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
