I've been on the Yosemite and noticed only as of just this morning that my screen was on with a screen saver running.
I have screen savers set to never start, and I have Display sleep set to 10 minutes under Energy Saver. I went away from my computer again today and came back to find the display on again with the screen saver on again. I realize I could have processes disrupting display sleep, but why would the screen saver come on if it's been told not to?
Is this some new Yosemite issue? How might I fix it?