Latitude E5250/E5450/E5550/E7250/E7450 with Blanking, Flickering or Blinking Video on External Monitors when Connected to Docking Stations
This article provides information on issues regarding flickering video along with troubleshooting steps and driver links to resolve the issue.
Flickering/Blinking video on external monitors
Dell Latitude E5250 / E5450 / E5550 / E7250 / E7450 may encouter video flickering / blinking when connecting to a docking station attached to dual external monitors. The video will blink intermittently for about 2-3 seconds at a time throughout the day when connected to the DisplayPort (DP), Digital Video Interface (DVI), or Video Graphics Array (VGA) cable connections.
Docking station part numbers reported with the issue.