Ubuntu server 14.04 with just xorg and firefox installed.
The server boots up and immediatly starts firefox with the disired webpage in fullscreen mode.
After 10 minutes my monitor ...
I just installed Linux on a laptop of mine (it's Lubuntu 15.04 on a Lenovo X201, Core i5 M540, 2GB mem). I'm currently seeing 21580 mW power draw with a couple of apps open (Firefox with a few tabs ...
I have two commands:
one I'd like to execute when computer enters "Screen Energy Saving" mode,
another when it exists this state.
How to trigger those commands depending on "Screen Energy Saving" ?