Is your screen saver switching off your monitor every 10 min?
Follow the next steps:

1) Install xScreenSaver.

use the following command  in a terminal:


     sudo apt-get install xscreensaver

The link for more options

2) Disable the standard power management .

The following image is from LUBUNTU:

click on the menu Preference \ Default applications for LXSession

menu_defaultapps

In Running applications at Power Manager select «no» and click Apply. Without Apply is not saving the changes

defaultapp_removepwrmng

3) Add the screensaver daemon in the autorun.

The link for more details

At the Autostart tab paste the following command and click Add.


     xscreensaver -no-splash

defaultapp_autorun

 4) Disable xScreenSaver.

click on the menu Preference \ Screensaver

menu_scrnsaver

Change the Mode to «Disable Screen Saver»

scrsaver_disable