Comment 9 for bug 1574617

Same problem here. ThinkPad Edge 15 with 2 external monitors. One is connected via old school vga connector, other is HDMI. Since upgrade to 16.04, the HDMI monitor intermittently blanks out when moving the mouse between the two monitors. In addition, there is a quick flash on the monitor which the mouse is "leaving". So if monitor A is on the left and B is on the right, and I am moving the mouse from B to A, B flashes right as the mouse passes to A.