Confirmed on Precise with kernel 3.2-31-generic. Brightness keys don't change screen brightness, even after adding the 'acpi_backlight' option. I can still manage by writing 1-7 to /sys/class/backlight/acpi_video0/brightness.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/503577 Title: g-p-m brightness not applied anymore after rebooting Status in “gnome-power-manager” package in Ubuntu: Incomplete Bug description: Binary package hint: gnome-power-manager Release: Karmic i686 Package version: gnome-power-manager 2.28.1-0ubuntu1 I am on a Dell mini 10, running a clean install of Karmic i686, fully updated. After startup, the screen brightness is at 100%, no matter what it is set to under Gnome-power-manager. The brightness buttons didn't work at all after the installation, so that there was no way to change the screen brightness. Adding 'apci_brightness=vendor' to boot options made the brightness buttons work, but the settings are still ignored. In other words, the screen is always at 100% brightness after startup, although it's set to be at 60% ProblemType: Bug Architecture: i386 Date: Tue Jan 5 23:43:15 2010 DistroRelease: Ubuntu 9.10 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5) NonfreeKernelModules: wl Package: gnome-power-manager 2.28.1-0ubuntu1 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-16.53-generic SourcePackage: gnome-power-manager Uname: Linux 2.6.31-16-generic i686 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/503577/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
