Restart Steam and run the Sonic Generations configuration tool again to generate a clean file matching your current hardware. Method 4: Match Refresh Rates
How to Fix the "Detected Configuration Does Not Match Your Current Hardware" Error in Sonic Generations
The Sonic Generations "detected configuration does not match your current hardware" error is a classic case of modern software outgrowing legacy code. By following the steps above—specifically deleting the .cfg files—you can force the game to adapt to your new hardware.
Once the Configuration Tool opens, . Simply click Save and Quit . Try launching the game again. 2. Delete the Existing Configuration Files
| Scenario | Triggers error? | Notes | |----------|----------------|-------| | Same GPU, no driver update | No | Works as expected | | Same GPU, driver update (e.g., 531→545) | | Most common complaint | | Different GPU (e.g., GTX 1060 → RTX 3060) | Yes | Expected, but persists even after reconfig | | Disabling iGPU, using dGPU only | Sometimes | If primary adapter order changed | | Virtual machine / GPU passthrough | Almost always | Driver signature differs from bare metal | Restart Steam and run the Sonic Generations configuration
: Ensure the resolution you select in the Configuration Tool matches your monitor's native resolution (e.g., 1920x1080). Steam Deck Users : You must perform these steps in Desktop Mode , delete the files, then return to Gaming Mode to run the configuration. Disable Anti-Aliasing
Ensure both the game and the tool are running with Admin rights.
In the game’s installation folder, right-click SonicGenerations.exe . Select > Compatibility . Check Run this program as an administrator .
If you are using a 1440p ultrawide (2560x1080 or 3440x1440) or a 120Hz+ monitor, the error is almost guaranteed. Sonic Generations natively caps at 60 FPS and expects 16:9 resolutions. Attempting to force 144Hz via GPU control panels often changes the reported EDID just enough to trigger the mismatch. Once the Configuration Tool opens,
The game frequently confuses laptops that switch between integrated graphics and a dedicated GPU (e.g., Nvidia Optimus).
If you're playing on a Steam Deck, the principles are the same, but the environment is slightly different.
The most definitive fix reported across the Steam Community and Reddit is purging the broken configuration caches so the game generates clean ones.
Click and navigate to your Sonic Generations installation folder. the principles are the same
Launch the game. The error should now allow a proper reset.
Many users report that setting the resolution or refresh rate too high triggers the error. Open the .
Don’t let a decade-old configuration handshake ruin one of the best Sonic games ever made. Apply the fix, hit boost, and let the error message fade into history where it belongs.