I am running my work laptop (Dell Latitude 5590) with 2 additional monitors (3 screens total). The two monitors are connected docking station (1 with HDMI, 1 with DP) that the laptop is also connected to. Occasionally, and more frequently than ever before lately, the monitor that is connected via DP will freeze. All processes remain running, and I can use keyboard shortcuts to move windows that were on the DP monitor over to the laptop or HDMI monitor. A restart always fixes the problem, but it can be quite annoying depending on what I am working on during the day. Any ideas what could be causing this? There doesn't seam to be a single trigger that causes it to happen, though it does appear to happen more frequently when the laptop is under more load.