On Linux, Windows DirectX 12 games run via VKD3D-Proton, which translates DX12 calls to Vulkan. Some mods inject a native Vulkan FSR2 DLL. The conflict arises when the game expects DX12 FSR2, but the mod forces vk_x64 .
// Opaque context pointer typedef struct FfxFSR2Context FfxFSR2Context; ffx fsr2 api vk x64dll work
: For mods, the DLL must be placed in the same folder as the game's main .exe file. On Linux, Windows DirectX 12 games run via
In a standard game installation, this DLL is typically found in the main executable directory. GitHub - GPUOpen-Effects/FidelityFX-FSR2 For FSR2 specifically: After weeks of intense development,
AMD provides the FidelityFX SDK as a set of headers and precompiled libraries. For FSR2 specifically:
After weeks of intense development, the Square Enix team finally succeeded in integrating FSR2, VK, and the x64 DLL into FFX. The results were nothing short of breathtaking: the game now boasted stunning, high-resolution graphics, with crisp textures and detailed environments.
| Symptom | Likely Cause | |---------|---------------| | DLL not found | Missing ffx_fsr2_vk_x64.dll in PATH or alongside executable. | | vkCreateComputePipelines fails | Shader SPIR-V not compiled for Vulkan 1.2+ or missing VK_KHR_16bit_storage . | | FSR2 outputs black screen | Depth and motion vectors not in normalized device coordinate space (NDC [-1..1] for Vulkan). | | Performance regression | Missing VK_KHR_push_descriptor or using too many barriers; FSR2 expects explicit layout transitions. | | Linker errors (static linking) | Using wrong import lib – must match VK and x64. |