Comment 4 for bug 1004371

the smart window placement fails on the second output. if the smart window placement plugin is set to use all output devices, it refuses to do so and only uses the first. changing the output into a single large one (under compiz general settings > display settings) solves this problem but introduces a new one. it will allow smart window placement to spawn on both monitors, but (of course) the border between the two monitors will be gone. this makes maximizing a window spawn both screens, and the smart window placement will split some of the new windows between both screens.