Can't choose GPU when multiple GPUs exist

[CodenameCookie]

Seems this method to choose AMD or Nvidia does nothing anymore. By changing gpu-preferences.json in this directory: C:\Users\Username.cache\lm-studio\gpu-preferences.json
It didn't exist and creating it with "amd" did nothing. So either that seems to have changed or it never worked.

{ "gpuType": "amd", "modelFileFormat": "gguf" }

Why are you making it so hard to use your software? Surely this is basic functionality?
I know it's free but you're not making using it very attractive.

[Gierry]

same problem
but I solve it use bat script like this：

@echo off

set CUDA_VISIBLE_DEVICES=0


lms load IAILabs/Qwen2.5-VL-7b-Instruct-GGUF/Qwen2.5-VL-7B-Instruct-Q4_K_M.gguf

start "" "C:\Program Files\LM Studio\LM Studio.exe"

run this bat file in win11

I wish has a switch in app