lmstudio-ai/README · eGPU Detection - GPU survey unsuccessful

The problem: Runtime CUDA llama.cpp (Windows) Compatibility returns GPU survey unsuccessful despite eGPU being connected, powered, and the active graphics accelerator (as in, I can even so much as play games my AMD GPU is unable).

Context: first time install, wanting to try out some DeepSeek models with LM Studio

Hardware configuration:

Product: Intel NUC8i7HVK
CPU: Intel i7-8809G
GPU: AMD Radeon RX Vega M GH graphics
eGPU: NVIDIA GeForce RTX 4070 Founders Edition via Sonnet eGPU Breakaway Box 750ex
RAM: (64GB) 2x32GB Crucial DDR4-3200
Storage: 2x2TB NVMe Samsung 970 EVO+

LM Studio - System Resources:

[
  {
    "modelCompatibilityType": "gguf",
    "runtime": {
      "hardwareSurveyResult": {
        "compatibility": {
          "status": "Compatible"
        },
        "cpuSurveyResult": {
          "result": {
            "code": "Success",
            "message": ""
          },
          "cpuInfo": {
            "architecture": "x86_64",
            "supportedInstructionSetExtensions": [
              "AVX",
              "AVX2"
            ]
          }
        },
        "memoryInfo": {
          "ramCapacity": 68671246336,
          "vramCapacity": 4294967296,
          "totalMemory": 72966213632
        },
        "gpuSurveyResult": {
          "result": {
            "code": "Success",
            "message": ""
          },
          "gpuInfo": [
            {
              "name": "Radeon RX Vega M GH Graphics",
              "deviceId": 0,
              "totalMemoryCapacityBytes": 38362152960,
              "dedicatedMemoryCapacityBytes": 4294967296,
              "integrationType": "Discrete",
              "detectionPlatform": "Vulkan",
              "detectionPlatformVersion": "1.3.283",
              "otherInfo": {
                "deviceLUIDValid": "true",
                "deviceLUID": "c708010000000000",
                "deviceUUID": "00000000010000000000000000000000",
                "driverID": "1",
                "driverName": "AMD proprietary driver"
              }
            }
          ]
        }
      }
    }
  }
]

LM Studio appears to detect the AMD GPU, just not the NVIDIA GPU.