When attempting to change the display mode to "Top" in Serious Sam 3, some players are finding that the option is either greyed out or not saving their changes. This means that the game is not rendering in the desired display mode, which can be particularly problematic for players using multiple monitors or with specific display setups.

Download the latest DXVK release from GitHub . Copy the d3d9.dll from the x32 folder into your game's Bin directory.

When you launch Serious Sam 3 , the game tries to initialize your graphics card and set a specific screen resolution, like 1920x1080. The "cannot set display mode" error appears when something in this communication chain goes wrong. The core issue almost always relates to the game's inability to communicate with your graphics hardware, often because of missing or misconfigured software components. The error can be triggered in several ways, including:

Because the error has several potential sources, it's usually best to work through the solutions from the most likely to the more advanced. Here are the most reliable fixes.