the box next to "Run this program in compatibility mode for" .
Paste the following path and press Enter: C:\Program Files (x86)\Steam\userdata\
Navigate to your local user data directory. Steam stores game-specific configuration profiles under your account ID folder: C:\Program Files (x86)\Steam\userdata\[YourSteamID]\41070\local\
If your drivers are already up to date, download Display Driver Uninstaller (DDU) to completely wipe your old display drivers in Windows Safe Mode. Afterward, install the latest driver package from your GPU manufacturer's official website. Share public link serious sam 3 cannot set display mode
How to Fix the "Serious Sam 3 Cannot Set Display Mode" Error
While frustrating, this error is almost always fixable. It typically stems from compatibility issues with modern hardware and software—specifically how the game's aging renderer tries to interact with your graphics driver, resolution, or DirectX setup.
If you use apps like Citrix, LogMeIn, Duet Display, or OBS Virtual Camera, they install virtual display adapters. Disable these adapters in your Windows Device Manager under "Display adapters" or "Monitors" before starting the game. the box next to "Run this program in compatibility mode for"
Even if your modern gaming rig runs DirectX 11, 12, or Vulkan, Serious Sam 3: BFE relies on specific Direct3D 9 runtime files ( D3D9.dll , D3DX9_43.dll ) to initialize its graphic environment. Missing files cause the Direct3D error: Cannot obtain display adapter info! log failure.
Use the AMD Cleanup Utility or DDU (Display Driver Uninstaller) to wipe old drivers before installing the newest Adrenalin software. 🛡️ Fix 5: Run as Administrator and Compatibility Mode
: Sometimes, the game attempts to boot into a resolution or refresh rate that the monitor does not support, leading to a fatal crash before the main menu loads. Proven Solutions Afterward, install the latest driver package from your
If launch options fail, you can hardcode a safe, standard resolution directly into the game's configuration files. Press Windows Key + R to open the Run dialog box.
: Forcing the game to switch between DirectX 9, DirectX 11, or Vulkan without the right software runtimes installed causes an instant crash. Core Solutions to Fix the Crash
If Serious Sam 3 (BFE) fails to start with a log that repeats “Trying to set display mode …” and ends with “Cannot set requested display mode” or “Cannot obtain display adapter info”, the game is unable to initialize Direct3D at the requested resolution. Below are practical, ordered fixes that solve this for most Windows setups.
Find and change these lines to match your monitor's native resolution: gfx_pixResWidth = 1920; gfx_pixResHeight = 1080;
The Serious Engine 3.5 has a known feud with Windows 10/11’s DPI virtualization and full-screen optimizations.