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ryan4yin | 二花 502d0c85c7 fix(preservation): keep vinput config and models across reboots (#381 )

Vinput stores its core config in ~/.config/vinput/config.json and its
downloaded sherpa-onnx models in ~/.local/share/vinput/models/. Neither
was bind-mounted from /persistent on the tmpfs-root hosts, so a reboot
wiped both and vinput-daemon started with "Local ASR provider model is
not configured". Persist both directories and document the one-shot CLI
model setup in the vinput README.

2026-10-05 00:18:01 +08:00

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Fcitx5 Vinput

On ai and shoukei, install a Sherpa-ONNX model, then hold and release right Alt to dictate. Right Shift toggles Chinese/English; left Shift remains a normal modifier. Open Vinput from the application launcher for settings.

One-time setup (CLI)

The GUI path is Resources → Models (download and activate), then Control → ASR Providers. The equivalent non-interactive commands are:

vinput model add onnx-xasr-zh-en-960ms-punct-stream   # download (~130 MB, sha256-verified)
vinput model use onnx-xasr-zh-en-960ms-punct-stream   # set as active model
systemctl --user restart vinput-daemon

vinput model list -a lists the available registry models.

Backends

shoukei uses CPU. Leave the model's provider at its default.

ai uses OpenVINO when the model's vinput-model.json sets "provider": "openvino"; restart vinput-daemon after changing it. One-shot enable:

f=~/.local/share/vinput/models/sherpa-onnx/x-asr-960ms-streaming-zipformer-transducer-zh-en-punct-int8/vinput-model.json
jq '.model.provider = "openvino"' "$f" | tee "$f.tmp" && mv "$f.tmp" "$f"
systemctl --user restart vinput-daemon

The user needs the render group and a new login after deployment.

Persistence

Models are stored in ~/.local/share/vinput/models/sherpa-onnx/ and the core config lives in ~/.config/vinput/config.json. Both directories are bind-mounted from /persistent on the tmpfs-root hosts (see hosts/idols-ai/preservation.nix); without that they are wiped on every reboot and the daemon logs Local ASR provider model is not configured. Review model source and license before installing.

NPU execution status: unverified. On ai, the OpenVINO runtime and NPU plugin load, the daemon opens /dev/accel/accel0, and the bundled WAV sample transcribes. However, the NPU busy-time counter did not increase, and no NPU profiling data has been collected. These observations do not confirm that model computation ran on the NPU; CPU fallback or partial fallback remains possible.

Diagnostics

journalctl --user -b -u vinput-daemon

Check the Sherpa/OpenVINO logs for the selected device. A definitive check needs NPU profiling enabled for inference and non-zero per-layer NPU timings; a loaded plugin or device busy-time counter alone is not conclusive.

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