How to disable screensaver in Yosemite I'm running Yosemite on a Mac mini (Mid 2011) and I use Synergy in client mode on this machine.  The screensaver setting is disabled ("Start after" is set to "Never") and display is set to sleep after 1 hour.  However, after 10-15 minutes of inactivity, the screensaver comes on.  Is there some other way of disabling it?
From Synergy Configuration File Format

screenSaverSync = {true|false}


If set to false then synergy won't synchronize screen savers. 

Client screen savers will start according to their individual configurations.

The server screen saver won't start if there is input, even if that input is directed toward a client screen.