I have been through this problem once but this not a bug with Asus laptop or linux. you can fix it with few workaround. I managed to solve the issue , and the solution for that is the gnome-power-manager. I just reinstalled and the problem gone. i saw the article on the web that has mention this solution , so I tried it and now all my problem was gone . here what you need to do for uninstalling the gnome power manager. Type this in the terminal.
Originally Posted by Fadheela
Now restart the computer, once it is booted reinstall the gnome power manager by Typing this in the terminal.
sudo apt-get remove gnome-power-manager
hope this will help for you as well , works form me.
sudo apt-get install gnome-power-manager