Serious Sam 3 Cannot Set Display Mode

Make sure the game isn't trying to use your motherboard's integrated graphics.

  • Or edit SeriousSam3.ini (user or install folder) and set graphics mode values to a lower windowed resolution:

    • Windows may mishandle the game’s fullscreen calls. serious sam 3 cannot set display mode

    This document walks through systematic steps to fix the error “Cannot set display mode” (or similar display-related errors) when launching Serious Sam 3 (BFE). Follow steps in order. Try launching the game after each step to check whether the issue is resolved. Make sure the game isn't trying to use

    The settings file might have corrupt or incompatible video parameters. Or edit SeriousSam3

    Ensure your system has the latest versions of DirectX and Visual C++ Redistributable.

    Sometimes the error only occurs in fullscreen. Force windowed mode, then switch back in-game.