Thomas Christensen, as per http://us.acer.com/ac/en/US/content/drivers an update is available for your BIOS (1.22). If you update to this, does it change anything?
If not, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. Thank you for your understanding. ** Tags added: saucy -- 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/1181927 Title: [Aspire V5-431]13.04: Brightness control visible but does nothing Status in “linux” package in Ubuntu: Incomplete Bug description: Brightness control visible but does nothing on 13.04... The brightness up down buttons shows the overlay brightness icon going up and down but it does not change the brightness (backlight). I have tried adjusting the kernel options acpi_osi=<x> and acpi_backlight=<y> (that did work with 12.10) to make it work but to no avail. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-generic 3.8.0.21.37 ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8 Uname: Linux 3.8.0-21-generic x86_64 ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: thomasc 2007 F.... pulseaudio Date: Mon May 20 12:45:35 2013 HibernationDevice: RESUME=UUID=2acc4a8c-a645-4f3c-bc8e-5c7a9d9df417 InstallationDate: Installed on 2013-04-11 (38 days ago) InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Alpha amd64 (20130410) MachineType: Acer Aspire V5-431 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-21-generic root=UUID=4cfdb2ed-677a-4fd0-aa7d-5b118700bd35 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-21-generic N/A linux-backports-modules-3.8.0-21-generic N/A linux-firmware 1.106 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/12/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V1.20 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-431 dmi.board.vendor: Acer dmi.board.version: V1.20 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V1.20 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV1.20:bd12/12/2012:svnAcer:pnAspireV5-431:pvrV1.20:rvnAcer:rnAspireV5-431:rvrV1.20:cvnAcer:ct9:cvrV1.20: dmi.product.name: Aspire V5-431 dmi.product.version: V1.20 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+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
