there are some clients with large minimum size (eg gnome programs: gedit, evince (with side plane),..) which might cause problems: * tiling algorithm does not handle the case when the clients on the stack are larger than configured (it handles the case when they are smaller though, like xterm) * large clients on the stack might span across another monitor covering it partly (and mod+left click makes the client jump to the other monitor if its center is on the other monitor)
i'm not sure if/how these cases should be handled gracefully just saying