Cannot find my GPU on WSL 2

[ficeloo]

Hello !

I'm super new to Rust and Bevy and I wanted to try out some features Bevy has to offer.
I followed a quick tutorial to launch my very first window, and, while it could indeed create one, I realize with from the output that it wasn't my GPU that handled this.

It said :

2026-02-07T11:05:37.133648Z  INFO bevy_render::renderer: AdapterInfo { name: "llvmpipe (LLVM 20.1.2, 256 bits)", vendor: 65541, device: 0, device_type: Cpu, driver: "llvmpipe", driver_info: "Mesa 25.2.8-0ubuntu0.24.04.1 (LLVM 20.1.2)", backend: Vulkan }
2026-02-07T11:05:37.133672Z  WARN bevy_render::renderer: The selected adapter is using a driver that only supports software rendering. This is likely to be very slow. See https://bevy.org/learn/errors/b0006/
ALSA lib confmisc.c:855:(parse_card) cannot find card '0'

So I looked to the "B0006 Error" but I tried every possible solutions and nothing worked out.

For information, i have a RTX 5070 Ti and the lastest nvidia driver.
I also use wsl 2 with ubuntu installed.

Thank you so much (English isn't my first language, sorry for my potential mystakes)

I can show you the complete output if needed.

[LarryDCJ]

I've also experienced this same issue.

Mon Feb  9 20:43:08 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.126.09             Driver Version: 591.59         CUDA Version: 13.1     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 3090        On  |   00000000:01:00.0  On |                  N/A |
|  0%   57C    P5             46W /  420W |    4389MiB /  24576MiB |     26%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A              34      G   /Xwayland                             N/A      |
+-----------------------------------------------------------------------------------------+

[rzhb]

I finally got WSL GPU rendering basically working, except bevy_pbr.

Tested on:

• Windows 11
• WSL2 + Ubuntu 26.04
• Bevy 0.19

1. Make Ubuntu detect the GPU

By default, Mesa falls back to llvmpipe for OpenGL. The following workaround enables GPU acceleration through D3D12:

# Fix OpenGL (otherwise Mesa falls back to llvmpipe)
echo 'export GALLIUM_DRIVER=d3d12' >> ~/.bashrc

# Optional: select a specific GPU when multiple adapters exist
# echo 'export MESA_D3D12_DEFAULT_ADAPTER_NAME=NVIDIA' >> ~/.bashrc

source ~/.bashrc

# Install Mesa Dozen/dzn Vulkan ICD
sudo add-apt-repository -y ppa:kisak/kisak-mesa
sudo apt update
sudo apt install -y mesa-vulkan-drivers

Reference:
microsoft/wslg#1312 (comment)

2. Bevy / wgpu adapter selection issue

Mesa Dozen (dzn) is not a conformant Vulkan implementation.

Without allowing non-conformant adapters, wgpu ignores the NVIDIA adapter and selects llvmpipe instead.

The workaround is to enable:

WGPU_ALLOW_UNDERLYING_NONCOMPLIANT_ADAPTER=1 cargo run

or configure it in Bevy:

fn main() {
    App::new()
        .add_plugins(
            DefaultPlugins.set(RenderPlugin {
                render_creation: RenderCreation::Automatic(Box::new(
                    WgpuSettings {
                        instance_flags: InstanceFlags::ALLOW_UNDERLYING_NONCOMPLIANT_ADAPTER,
                        ..default()
                    },
                )),
                ..default()
            }),
        )
        // Without this, resizing/maximizing the window crashes.
        // Spawning Camera2d fixes it; this may be related to another issue.
        .add_systems(Startup, |mut commands: Commands| {
            commands.spawn(Camera2d);
        })
        .run();
}

Reference:
#18246 (comment)
ALLOW_UNDERLYING_NONCOMPLIANT_ADAPTER

3. Current Bevy feature testing

I tested Bevy 0.19 with all default features enabled except bevy_pbr:

bevy = { version = "0.19" ,default-features=false, features =["dynamic_linking","dev",
"2d","ui","audio","3d_api","bevy_render","bevy_core_pipeline",
"bevy_gizmos_render","bevy_anti_alias","bevy_gltf","bevy_post_process","gltf_animation"]}

This seems to work correctly with GPU rendering in WSL.

However, enabling bevy_pbr will cause a segmentation fault.