Serious Sam 3 Cannot Set Display Mode

Serious Sam 3: BFE — How to Fix the "Cannot Set Display Mode" Error

If the game can't "handshake" with your monitor on the first launch, you may need to force a compatible resolution or windowed mode via the .ini file. serious sam 3 cannot set display mode

  • Click Change high DPI settings → Check Override high DPI scaling behavior → Set to Application.

    • If still unresolved