Flickering on Displays, Lighting, or TrueGlass with SLI Enabled


The displays, cockpit lights, or TrueGlass surfaces flicker when using SLI.


Disable SLI for Prepar3D via the NVIDIA Control Panel. The following steps explain this process. 

  • Open the NVIDIA Control Panel
  • Click "Manage 3D settings"
  • Click "Program Settings"
  • Select Prepar3D from the list
  • Find "SLI rendering mode" in the settings list
  • Select "Single-GPU"


We are in the process of researching and implementing proper support for SLI in our technology. Until then, disabling SLI will allow the software to work correctly.

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