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Comment on: Running on WSL2 Ubuntu 22.04 fails

Repo: fikrikarim/parlor by yhdanid
Posted: Apr 14, 2026
I have looked around briefly concerning this, and it seems the matter is not only related to litert (which seems to rely on Vulkan for GPU hardware acceleration), but I've also found out that even llama.cpp's Vulkan implementation won't use the dedicated NVIDIA GPU in WSL. Even when I specify --device MY_VULKAN_DEVICE (for NVIDIA) in the command. It still falls back to CPU acceleration. So this is not a litert issue, or llama.cpp issue, or a Parlor issue, but rather a Vulkan issue when running in WSL. So I suggest closing this as there is nothing that can be done until a solution upstream is found for Vulkan running in WSL in GPU acceleration mode.
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State: Open • Comments: 5