Corrupt redistributables can also interfere with the initialization process.
Open Device Manager , expand Display adapters , right-click your dedicated GPU (NVIDIA or AMD), and select Update driver . lumion failed to create dummy d3d9
A third-party service or startup program could be interfering. in Safe Mode to completely wipe old drivers
in Safe Mode to completely wipe old drivers before a clean reinstall. Lumion Community forum for the DDU clean install or adjusting virtual memory Error starting Lum2024 - "failed to create dummy d3d9" 4 Apr 2024 — He downloaded the latest "Game Ready" drivers, praying
He navigated to his device manager, his fingers flying across the keys. He uninstalled the display drivers, watching the screen flicker into a low-resolution ghost of its former self. He downloaded the latest "Game Ready" drivers, praying the updated code would bridge the gap. ⚡ The Turning Point
Caution: Backup your registry first (File → Export).