A solution for the power management problem in Ubuntu 12.04.
Problem: Brightness value is not getting saved and screen brightness will be back to 100% after reboot.
Solution:
Step1: Install xbacklight via terminal
sudo apt-get install xbacklight
Step2: Open startup applications
search startup applications
Step3: Add a startup program
In command box use
xbacklight -set `num`
where the
num
is percentage of your screen brightness.Step4: Save and enjoy :)