Many Windows users experience a frustrating problem when using DisplayLink-based docks, such as the Dell D6000, where one or more monitors become locked at 640×480 resolution and the display settings are unavailable. The issue arises when Windows cannot correctly read the monitor’s EDID data after a firmware, driver, or power event. This article explains what EDID is, why communication failures between the dock and the operating system cause these symptoms, and how to resolve them. A simple power-cycle process forces the dock and DisplayLink driver to rebuild the display configuration, restoring full resolution. The guide also includes practical advice for preventing future EDID issues and maintaining stable multi-monitor performance.