I currently use a Lenovo W541 mobile workstation which has a native 2880x1620 resolution on a 15.4" screen. I also have a 21" LED monitor which only supports 1902x1080. The dashboard does not work one both monitors, as the shift from the primary (laptop) screen to the secondary monitor causes the mouse clicks for the dashboard to execute in the main window some 1/6th of the screen shifted over.
This issue was diagnosed by the very responsive Fusion support team, but it is nonetheless something which should be fixed. The investment in high resolution monitors is not necessary for most CAD work, but many mobile workstations have a higher native resolution and look better when using it.
Please properly support extended desktops with different native resolutions! This is especially critical for presentations on projectors!