How to Fix Diablo 2 Resurrected Failed to Initialize Graphics Device

The first step is to ensure that the game is running on a dedicated GPU. This can be done by accessing the GPU specific settings on either your Nvidia or AMD GPU. For Nvidia GPU users, you need to open up Nvidia Control Panel >> Manage 3D Settings >> Program Settings >> then select the game and under preferred graphics option, select ‘High-performance Nvidia processor’. For AMD GPU users, you need to open up Radeon Settings >> Preferences >> Additional Settings >> Power >> Switchable Graphics Application Settings. Once opened, select the game and then under Graphics Settings, select the ‘High-Performance profile’ and then click on ‘Apply’.