I have thee screens and am finding it very annoying and distracting to find (1) my X settings have changed to make the leftmost Primary and not aligned right, and (2) all the windows moved onto the left screen with their sizes shrunk down too. This causes a similar effect in my full-screes virtual machines.
This is a desktop workstation, not a laptop subject to docking and presentation projectors. Turning off a display does not mean it is removed. Blanking a screen after inactivity having that effect is just wrong.
Can I be heavy-handed somehow and just disable the dynamics? Don't Change, period.
Linux Mint 17.1 Rebecca x64, Cinnamon, Nvidia graphics. 2 monitors on displayport, leftmost on DVI.