Bernardo Magri
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Four failures from Bernardo's round-4 dock pass on the AMD dev box, plus a headphone regression, tracked to three causes. The display watcher ran socat with `-T 1`, which closes Hyprland's IPC socket after one second of *inactivity*. A dock is normally plugged into an idle desktop, so the socket was almost always mid-reconnect at that moment and `monitoradded` was lost outright — and the wallpaper repaint, the docking profile, and the dock-audio reprobe all hung off that single event. The reconnect path recovered only the lid inhibitor, so the dock stayed half-configured until something else poked the watcher. Make the connection long-lived and take the periodic tick from a 1s `read` timeout instead, then let the *output set* — not the event — decide: a new `reconcile` diffs it and is called on both ticks and monitor events, so an event now only makes the reaction instant rather than necessary. A newly present external output is as unambiguous a physical plug as the event was, so it may still override a manual sink choice. Wallpaper paints are retried over the first few seconds because awww registers an output on its own schedule, not the compositor's. Hyprland calls every key-capable evdev node a "keyboard": the lid and power buttons, a monitor's control channel, and each extra HID collection of a real keyboard. One dock with one keyboard asked for a layout four times. udev already draws the distinction properly, so take ID_INPUT_KEYBOARD from it, map the names into Hyprland's spelling, and ask once per physical keyboard — applying the answer to every node it brought with it. Finally, a sink WirePlumber has been told to prefer is stored as the configured default and outranks every priority rule. On UCM cards the headphones are a sink of their own rather than a route, so once anything pinned a sink (this feature on a dock plug, or the user in the Audio menu), plugging headphones in could no longer take the audio back. The `watch` loop already subscribed to exactly the right events with an empty handler; finish it. Unplug needs no undo — the pin goes stale and WirePlumber falls back by priority on its own, to the dock when docked and the speakers otherwise. Verified V2: checks.docking-ux and checks.dock-audio pass with new guards against each regression; the keyboard filter and both sink selectors run against the dev box's real devices and sink names. The hotplug paths need hardware — queued as docking round 5. Also queues #107, renaming theme.json now that it holds the system state. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>