I can confirm that this behaviour is also present on my Acer Aspire 5633 WLMi Laptop. I can also confirm that unchecking "Reduce backlight brightness" and "Dim display when idle" under the battery tab in the Power Management Preferences causes the power system to behave normally.
-- gnome-power-manager needs several minutes to load at startup https://bugs.launchpad.net/bugs/296451 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs