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prl_client_app crashes on start if DisplayLinkDriver is loaded on Host

APPLIES TO:
  • Parallels Desktop 9 for Mac Standard Edition
  • Parallels Desktop 8 for Mac Standard Edition

Symptoms

Parallels Desktop (prl_client_app) crashes on every attempt to launch it.

The error message suggests to send crash report to Apple

  • External display is connected to the Mac
  • DisplayLink software and drivers are installed on the Mac.

Cause

Software conflict between Parallels Desktop and DisplayLink drivers for the external monitor.

Resolution

In order to resolve the issue please do the following:

  • disconnected external display

  • in Terminal (Applications/Utilities/Terminal) type in:

    kextunload -b com.displaylink.driver.DisplayLinkDriver
    

    and hit Return/Enter

  • restart your Mac

  • start Parallels Desktop




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