Root cause of silent HDMI on kiosk TVs (framework-pt, LG TV):
1) fresh ISOs installed NO audio stack even though the kiosk launcher
expects PipeWire-Pulse — add pipewire/pipewire-pulse/pipewire-alsa/
wireplumber/alsa-utils to the rootfs and put the archipelago user in
'audio' (linger user manager gets no logind seat ACLs on /dev/snd);
2) the kiosk's boot-time Xorg modeset races the i915→HDA audio-component
bind, the ELD notify is lost, and every HDMI profile stays
'available: no' forever. Verified live: one off/on modeset re-delivers
the ELD and WirePlumber immediately switches to HDMI.
New archipelago-audio-router daemon (same splice-from-configs pattern as
the kiosk, ISO + include_str! self-heal): routes the card to the best
available HDMI profile, keeps the default sink on it, migrates live
streams on hot-plug, unmutes (HDMI forced 100% — the TV owns volume), and
re-modesets a connected external output once when no ELD reports a
monitor. bootstrap::ensure_audio_stack() installs packages + router on
already-deployed kiosk nodes via OTA (apt through systemd-run — the
service sandbox keeps /usr and dpkg read-only). main.rs also spawns the
pine satellite keeper.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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