FWIW, I see the same behaviour on a fresh Oneiric install (on an Asus 1015PEM). Let me know if I can provide any further details (here or on bugzilla).
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/837743 Title: battery idle brightness may be brighter than user selected brightness Status in Gnome Settings Daemon: New Status in “gnome-settings-daemon” package in Ubuntu: Triaged Bug description: When running on battery the brightness is reduced when the machine is idle a few 10s of seconds. However the brightness to which we switch seems to be fixed such that if the brightness selected by the user is very low the idle brightness may actually be brighter. Bad. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: gnome-settings-daemon 3.1.5-0ubuntu6 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic i686 NonfreeKernelModules: wl Architecture: i386 Date: Tue Aug 30 23:28:02 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429) ProcEnviron: PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: gnome-settings-daemon UpgradeStatus: Upgraded to oneiric on 2011-08-05 (25 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-settings-daemon/+bug/837743/+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

