I can confirm that this is happening (it occurs here on my MacBook Core Duo). It seems like the issue is likely that gnome-power-manager is activating the brightness control automatically after idle, even if it doesn't actually dim the screen.
** Changed in: gnome-power-manager (Ubuntu) Sourcepackagename: None => gnome-power-manager Status: New => Confirmed -- Brightness Head-Up dialogue always appears after Idle https://bugs.launchpad.net/bugs/122682 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs