Can confirm this, on 12.04 this bug is still present, add: acpi_osi=Linux pcie_aspm=off
to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub, do sudo update-grub to work with ubuntu on Dell Vostro3700. -- 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/880096 Title: cant change laptop brightness Status in “gnome-power-manager” package in Ubuntu: Confirmed Bug description: can`t change laptop brightness, software controls in settings center doesnt have any effect. while typeing on keyboard the status of the screen brightness changes [top right] but aktual brightness does not change. laptop dell vostro 3700. (yes, the one on the ubuntu homepage) using ubuntu 11.10 fresh install. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/880096/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
