** Attachment added: "lspci-vnvn.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1297095/+attachment/4042053/+files/lspci-vnvn.log
-- 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/1297095 Title: Backlight control not working in Lenovo Y500 Status in “linux” package in Ubuntu: Confirmed Bug description: I have done : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash thinkpad-acpi.brightness_enable=1 acpi_backlight=vendor" in /etc/defaults/grub.cfg and update-grub still i'm am unable to control the the screen brightness ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-18-generic 3.11.0-18.32 ProcVersionSignature: Ubuntu 3.11.0-18.32-generic 3.11.10.4 Uname: Linux 3.11.0-18-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: sandeshc 1905 F.... pulseaudio /dev/snd/controlC0: sandeshc 1905 F.... pulseaudio /dev/snd/pcmC0D0p: sandeshc 1905 F...m pulseaudio Date: Tue Mar 25 11:12:58 2014 HibernationDevice: RESUME=UUID=fc659f72-e4d7-4434-bed8-f0f2ee54da04 InstallationDate: Installed on 2014-02-25 (27 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: LENOVO 20193 MarkForUpload: True ProcEnviron: LANGUAGE=en_IN:en TERM=xterm PATH=(custom, no user) LANG=en_IN SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-18-generic.efi.signed root=UUID=f357b7eb-d6f6-44ea-82d9-9cb2d64b8825 ro quiet splash thinkpad-acpi.brightness_enable=1 acpi_backlight=vendor vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.11.0-18-generic N/A linux-backports-modules-3.11.0-18-generic N/A linux-firmware 1.116.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/21/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 6BCN44WW(V2.04) dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900004WIN8 STD SGL dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo IdeaPad Y500 dmi.modalias: dmi:bvnLENOVO:bvr6BCN44WW(V2.04):bd05/21/2013:svnLENOVO:pn20193:pvrLenovoIdeaPadY500:rvnLENOVO:rnINVALID:rvr31900004WIN8STDSGL:cvnLENOVO:ct10:cvrLenovoIdeaPadY500: dmi.product.name: 20193 dmi.product.version: Lenovo IdeaPad Y500 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1297095/+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