I'm using Linux Mint 18 on a dell laptop, with screen saver as in
Since some of themes are very pretty and geometrical, I'd like to keep them running on my laptop on an exposition room, that is, while people walk around and have some coffee break, they could enjoy the beauty of screen saver.
But, in this case, I'd like to lock it on the screen, that is, even pressing any key or moving the cursor, it should keep running. Is it possible?
I know how to lock it, but when press any key the password field appears and stay there for some seconds. I don't want this.
Since it is necessary some way to disable it, I suspect to run it on some tty?