Theo band, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com /daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux <replace-with-bug-number> Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.11-rc5 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Tags added: latest-bios-v.135 needs-upstream-testing ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/706303 Title: LCD screen brightness is not adapted on AC/Battery state change Status in “linux” package in Ubuntu: Incomplete Bug description: Fn-left and Fn-right control the brightness correctly (with a nice indicator popup) The brightness slider in gnome-power-manager has no effect (It does seem to change the value in /proc/acpi/video/OVGA/DD02/brightness) xbacklight -set 50 does not work. setpci -s 00:02.0 F4.B=FF to setpci -s 00:02.0 F4.B=00 controls the brightness over the entire range. I tried acpi_backlight=vendor as boot option but that does not make any difference (this used to be a workaround for 10.04) ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: xorg 1:7.5+6ubuntu3 ProcVersionSignature: Ubuntu 2.6.35-24.42-generic-pae 2.6.35.8 Uname: Linux 2.6.35-24-generic-pae i686 Architecture: i386 DRM.card0.DisplayPort.1: status: disconnected enabled: disabled dpms: On modes: edid-base64: DRM.card0.DisplayPort.2: status: disconnected enabled: disabled dpms: On modes: edid-base64: DRM.card0.HDMI_Type_A.1: status: disconnected enabled: disabled dpms: On modes: edid-base64: DRM.card0.LVDS.1: status: connected enabled: enabled dpms: On modes: 1366x768 edid-base64: AP///////wAGrzwhAAAAAAESAQOAHxF4Cgnll1dUkyciUFQAAAABAQEBAQEBAQEBAQEBAQEBIBxWgFAAIzAwIDYANa4QAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTQwWFcwMiBWMSAKALI= DRM.card0.VGA.1: status: disconnected enabled: disabled dpms: On modes: edid-base64: Date: Sat Jan 22 15:36:02 2011 InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5) MachineType: Acer Aspire 4810T ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-24-generic-pae root=/dev/mapper/vg-root_10.10 ro i8042.nomux quiet splash vga=792 ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: xorg Symptom: display dmi.bios.date: 04/13/2010 dmi.bios.vendor: INSYDE dmi.bios.version: V1.35 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Aspire 4810T dmi.board.vendor: Acer dmi.board.version: Base Board Version dmi.chassis.type: 1 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnINSYDE:bvrV1.35:bd04/13/2010:svnAcer:pnAspire4810T:pvrV1.35:rvnAcer:rnAspire4810T:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion: dmi.product.name: Aspire 4810T dmi.product.version: V1.35 dmi.sys.vendor: Acer glxinfo: Error: [Errno 2] No such file or directory system: distro: Ubuntu codename: maverick architecture: i686 kernel: 2.6.35-24-generic-pae --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: thba 20308 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd4400000 irq 45' Mixer name : 'Intel Cantiga HDMI' Components : 'HDA:10ec0269,1025022a,00100004 HDA:80862802,80860101,00100000' Controls : 21 Simple ctrls : 10 DistroRelease: Ubuntu 11.04 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) MachineType: Acer Aspire 4810T Package: linux (not installed) ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic-pae root=/dev/mapper/vg-root_11.04 ro resume=/dev/vg/swap1104 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2 RelatedPackageVersions: linux-restricted-modules-2.6.38-8-generic-pae N/A linux-backports-modules-2.6.38-8-generic-pae N/A linux-firmware 1.52 Tags: natty Uname: Linux 2.6.38-8-generic-pae i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin audio cdrom dialout fuse lpadmin plugdev sambashare sudo video dmi.bios.date: 04/13/2010 dmi.bios.vendor: INSYDE dmi.bios.version: V1.35 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Aspire 4810T dmi.board.vendor: Acer dmi.board.version: Base Board Version dmi.chassis.type: 1 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnINSYDE:bvrV1.35:bd04/13/2010:svnAcer:pnAspire4810T:pvrV1.35:rvnAcer:rnAspire4810T:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion: dmi.product.name: Aspire 4810T dmi.product.version: V1.35 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/706303/+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
