** Tags added: apport-collected ** Description changed:
I could not adjust the backlite of my HP 655 laptop. Original vendor website: http://h10010.www1.hp.com/wwpc/us/en/sm/WF05a/321957-321957-64295-3740644-3955548-5225017.html?dnr=1 The gnome-brightness applet is startable and the keys for brightness adjustment (F2 for less and F3 for more) are recognized by the system and can set the Software values, but also there is no real effect. A check of /sys/class/backlight shows a redirect to acpi_video0 which contains different entries like files for brightness. So it is a bug of the type: "Backlight control does not work, but there are entries in /sys/class/backlight" The laptop was originally delivered with a SUSE Linux Enterprise desktop 11 on Service Pack 2, which has contained kernel 3.0.x. On this kernel version the Backlight was working. Unfortunally the SLED 11 SP2 was a obvious adapted one by HP with poperitary Software components. Following this the vanilla 3.0.x kernel may also not be able to handle the backlight with success. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-15-generic 3.5.0-15.22 ProcVersionSignature: Ubuntu 3.5.0-15.22-generic 3.5.4 Uname: Linux 3.5.0-15-generic x86_64 ApportVersion: 2.5.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: user 2468 F.... pulseaudio /dev/snd/controlC0: user 2468 F.... pulseaudio Date: Sat Sep 22 18:01:28 2012 HibernationDevice: RESUME=UUID=8bceb372-d432-423b-8584-7c87de9a2038 InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120722) Lsusb: Bus 001 Device 002: ID 04f2:b2f4 Chicony Electronics Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Hewlett-Packard HP 655 Notebook PC ProcEnviron: PATH=(custom, no username) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-15-generic root=UUID=90fd01e1-3896-4a96-babc-048fb146d8e0 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.5.0-15-generic N/A linux-backports-modules-3.5.0-15-generic N/A linux-firmware 1.93 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/27/2012 dmi.bios.vendor: Insyde dmi.bios.version: F.02 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 1885 dmi.board.vendor: Hewlett-Packard dmi.board.version: 66.11 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.02:bd04/27/2012:svnHewlett-Packard:pnHP655NotebookPC:pvr0798100000005210002600000:rvnHewlett-Packard:rn1885:rvr66.11:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP 655 Notebook PC dmi.product.version: 0798100000005210002600000 dmi.sys.vendor: Hewlett-Packard + --- + ApportVersion: 2.5.3-0ubuntu1 + Architecture: amd64 + DistroRelease: Ubuntu 12.10 + InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120722) + Package: linux (not installed) + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + LANG=de_DE.UTF-8 + SHELL=/bin/bash + Tags: quantal running-unity + Uname: Linux 3.6.0-030600rc7-generic x86_64 + UnreportableReason: The running kernel is not an Ubuntu kernel + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1054647 Title: Backlight is not adjustable on HP 655 laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1054647/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
