This fix is known to work on GeForce GT 555M, GeForce GT 540M, and GeForce GT 525M chipsets. Some people have said that the now-force-activated Nvidia card took control anyway at this point, solving the problem.

If not, try running the Sonic Config again and this time deliberately select the non-Nvidia card.

Now start Sonic, and it will probably work.

Open the Sonic Config tool and see if your Nvidia card is present (it really should be), and of course, choose it.

This will force-activate your discrete GPU.

Choose extended desktop and apply again.

Choose your Nvidia card and select 'Attempt to connect anyway on '.Press Detect in this new Window (if you can see two displays that are grayed out and named after your video cards, you're probably good to go). Right click on it, and select 'Screen Resolution'. Select the option to force it to use Nvidia Graphics Card.Click on 'Manage 3D Settings' in the left side of the panel, and click 'add'.See Essential Improvements and Modifications sections for more information. These mods include HQ pre-rendered cutscenes, increased shadow resolution, and HUD upscales. Various mods that enhance the vanilla game are highly recommended, even for a first playthrough. One such notable mod is the Unleashed Project, which ports the 9 'daytime' stages from Sonic Unleashed into the game (replacing the vanilla stages). Sonic Generations features an active modding community players have produced a variety of mods for the game’s stages, models, visual effects, audio, and animations. this DLC was initially an exclusive GameStop pre-order bonus for the console versions that was later made available for purchase on Steam. On September 29, 2016, all Steam users received the Casino Night DLC (an in-game pinball mini-game) for free. Unlike the console versions, the PC version removes the unlockable (emulated) copy of the original Sonic the Hedgehog (1991). The PC version of the game was released on Novemon Steam, with Europe and Australia exclusively receiving a physical release. The game was intended as a celebration of the 20th anniversary of the Sonic the Hedgehog franchise, with it featuring the play-styles and character designs of two different eras of Sonic ('Classic' and 'Modern') and levels spanning the franchise from 1991 to 2010. Sonic Generations is a single-player 3D platformer developed by Sonic Team and published by Sega. 10.2.2 Missing Cutscene for Casino Night DLC.8.7 Modern Sonic's Quickstep sound is missing.8.6 Crash when trying to play online ranking mode.8.3 Configuration Tool does not open/crashes.

Sonic generations ps3