# MiniPC-8845 Arch WSL GPU Runner

Configuration recorded on 2026-10-05.

## Host

| Component | Configuration |
| --- | --- |
| Hostname | `MiniPC-8845` |
| Windows build | `10.0.26200.9445` |
| GPU | AMD Radeon 780M Graphics |
| Windows GPU driver | `32.0.12033.1030` |
| WSL version | `2.7.3.0` |
| Distribution | `archlinux`, Arch Linux on WSL 2 |
| Linux kernel | `6.6.114.1-microsoft-standard-WSL2` |
| Init system | systemd |
| WSL networking | Mirrored |
| GPU access | `/dev/dxg` and `/usr/lib/wsl/lib` |

## GitHub Actions Runner

| Setting | Value |
| --- | --- |
| Repository | `MobileGL-Dev/MobileGL` |
| Runner name | `minipc-8845-arch-wsl-gpu` |
| Runner version | `2.337.0`, automatic updates enabled |
| Labels | `self-hosted`, `Linux`, `X64`, `arch`, `wsl`, `gpu`, `gles`, `vulkan`, `d3d12` |
| Concurrent jobs | 1 |
| Linux account | `github-runner`, UID 1001, no sudo configuration |
| Installation directory | `/opt/actions-runner/mobilegl` |
| Work directory | `/opt/actions-runner/mobilegl/_work` |
| Environment file | `/etc/mobilegl-runner/gpu.env` |

Workflow runner selector:

```yaml
runs-on: [self-hosted, Linux, X64, arch, wsl, gpu, gles, vulkan]
```

## Graphics

| Component | Configuration |
| --- | --- |
| Mesa | `26.2.1-arch1.1` |
| OpenGL / GLES driver | Mesa D3D12 |
| Renderer | `D3D12 (AMD Radeon 780M Graphics)` |
| EGL | 1.5 |
| OpenGL | 4.6 |
| OpenGL ES | 3.1 |
| Vulkan driver | Mesa Dozen, translating Vulkan to D3D12 |
| Vulkan device API | 1.2.354 |
| Vulkan ICD | `/usr/share/vulkan/icd.d/dzn_icd.json` |
| Default EGL platform | Surfaceless |

Dozen reports a non-conformant Vulkan implementation. The exposed capabilities
are GLES 3.1 and Vulkan 1.2; GLES 3.2 and full Vulkan conformance are not available.

The runner service selects the Radeon GPU with these environment variables:

```sh
DISPLAY=:0
WAYLAND_DISPLAY=wayland-0
XDG_RUNTIME_DIR=/mnt/wslg/runtime-dir
LD_LIBRARY_PATH=/usr/lib/wsl/lib
MESA_LOADER_DRIVER_OVERRIDE=d3d12
GALLIUM_DRIVER=d3d12
MESA_D3D12_DEFAULT_ADAPTER_NAME="AMD Radeon 780M Graphics"
VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/dzn_icd.json
EGL_PLATFORM=surfaceless
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
```

The installed GPU probe is `/usr/local/libexec/mobilegl-runner/gpu-smoke`.
Its GLES source is `/usr/local/libexec/mobilegl-runner/gles-smoke.c`, and the
recorded verification log is `/var/log/mobilegl-runner/gpu-smoke.log`.

## Build Tools

Installed tools include GCC, Clang 22, CMake, Ninja, ccache, LLD, libc++, Git LFS,
GitHub CLI, and EGL/GLES/Vulkan development headers.

## Service and Startup

| Setting | Value |
| --- | --- |
| systemd unit | `actions.runner.MobileGL-Dev-MobileGL.minipc-8845-arch-wsl-gpu.service` |
| Service drop-in | `/etc/systemd/system/actions.runner.MobileGL-Dev-MobileGL.minipc-8845-arch-wsl-gpu.service.d/gpu.conf` |
| Service startup | Enabled at WSL systemd boot |
| Restart policy | `Restart=always`, `RestartSec=15` |
| Startup checks | GPU device access and WSLg X11/Wayland sockets |
| Windows scheduled task | `MobileGL Arch WSL Runner` |
| Task trigger | Windows login by `Swung0x48` |
| Task behavior | Starts WSL in a hidden window and keeps it running |
| Task execution limit | Unlimited |
| Task retry policy | Every minute, up to 999 retries |

Automatic startup requires the Windows user to log in. The runner cannot execute
jobs while the host is asleep.

## Network

The runner uses the Windows Clash proxy through WSL mirrored networking:

```sh
http_proxy=http://127.0.0.1:7897
https_proxy=http://127.0.0.1:7897
no_proxy=localhost,127.0.0.1,::1
```

Clash must be running for the runner's configured GitHub connection to work.