5.4 KiB
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:
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:
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:
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.
Main Test workflow
test.yml uses a small GitHub-hosted select-runner job to query this repository's
runner inventory. Every subsequent job uses its single decision, so artifacts built
against Arch's compiler/libc/Mesa cannot accidentally be consumed by Ubuntu jobs.
An online runner is preferred even when busy. Offline, unregistered, or mismatched
labels select ubuntu-latest for the whole run. Test failures do not cause fallback.
Configure repository Actions secret RUNNER_STATUS_TOKEN with a fine-grained PAT
restricted to this repository and Administration: Read-only. The ordinary
GITHUB_TOKEN cannot generally list repository runners. A missing/expired token or
API failure stops selection with an error: unknown availability is not treated as
an offline machine. The token is passed only to the GitHub-hosted selector.
Availability is sampled at workflow start. If the machine disconnects after selection, GitHub queues its remaining jobs; rerunning the workflow while it is offline chooses Ubuntu. GitHub Actions does not migrate already scheduled jobs between runner types. Keeping one platform per run avoids incompatible artifacts.
The local composite setup action uses Arch's installed Clang/CMake and Dozen ICD.
Ubuntu package installation, swap provisioning, SDK download, and privileged core
pattern changes are skipped on this no-sudo host. Compiler caches are separated by
runner pool. Trace tests disable forced software-rendering environment overrides
on this machine; the Ubuntu fallback retains its existing Mesa software settings.
Hardware capability differences remain visible as test results, not fallback triggers.
The dedicated wsl-gpu-smoke.yml workflow has been removed; the host's installed
probe remains available to its operator.