Serious Sam 3 Cannot Set Display Mode =link= -
Locate the following lines and update them to match your monitor's native resolution: gfx_pixResWidth = 1920; gfx_pixResHeight = 1080;
On laptops with both integrated Intel graphics and a dedicated NVIDIA/AMD GPU, Serious Sam 3 may default to the weaker Intel GPU, causing mode-setting failures. serious sam 3 cannot set display mode
Open the file with Notepad. Look for these lines under the [Display] section: Locate the following lines and update them to
RefreshRate = 60
Serious Sam 3 hates mismatched refresh rates. If your monitor runs at 144Hz, 165Hz, or 240Hz, the game might panic. gfx_pixResHeight = 1080
gfx_bFullScreen = 0; (Try setting this to 0 for windowed mode first to see if it launches). Save the file and try launching the game. 3. Reinstall DirectX and GPU Drivers