Lenovo P51 is docked to a ThinkPad Workstation Dock, a line of dots appear at the top of the screen and the unit will not boot

Solution Verified - Updated -

Issue

Lenovo P50 & P51 laptops do not boot when docked if an external display is connected to the dock

Environment

  • Red Hat Enterprise Linux 7.5
  • Lenovo P50 Laptop
  • Lenovo P51 Laptop
  • Lenovo Workstation Dock
  • Kernel 3.10.0-862

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