Helldivers 2 tanked on an IDLE host: the pad DualSense speaker stayed visible and the recording default was parked forever #217

Merged

enricobuehler merged 4 commits from worktree-hd2-idle-recording-default into main 2026-08-14 08:41:14 +00:00

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4 Commits

Author	SHA1	Message	Date
enricobuehler	652de8b5e0	docs(changelog): the pad-audio DualSense speaker hides while no client pad is attached	2026-08-14 10:26:16 +02:00
enricobuehler	ec36597058	fix(audio/windows): the pad-audio DualSense speaker hides while no client pad is attached — idle libScePad titles stalled on it ... The per-pad endpoint is stamped to be indistinguishable from a real DualSense speaker — that is the feature during a pad session (libScePad titles route haptics audio at it) and a trap the rest of the time: the endpoint is pre-provisioned at EVERY host start and stayed visible forever, so an idle Helldivers 2 found it by identity, engaged its DualSense-haptics path against a device nothing services, and dropped to 2–5 FPS 1% lows — host idle, no controller plugged in, no session ever run (field-confirmed 2026-08-14: the reporter isolated the 'DualSense speaker' and disabling it in mmsys.cpl restored full performance). That manual remedy is now automatic: the endpoint parks HIDDEN (DEVICE_STATE_DISABLED, IPolicyConfig::SetEndpointVisibility — the call behind mmsys.cpl's own Disable, vtable slot pinned next to the SetDefaultEndpoint we already bind) whenever no client pad is attached. Provisioning hides it at startup, a PUNKTFUNK_PAD_AUDIO=0 host hides leftovers from earlier runs, and the per-pad streamer shows it for exactly the pad's lifetime — to a game, a DualSense arriving and leaving. The devnode, driver binding and stamps stay put (registry-based resolution finds a disabled endpoint at the next boot), so the flips raise no PnP traffic and the expensive provisioning still happens once at boot — the #185 lesson holds. Devtest: pad-endpoint grew show/hide verbs; tone/capture need a show first on a parked box.	2026-08-14 10:26:13 +02:00
enricobuehler	e5c0d6b4eb	docs(changelog): an idle Windows host no longer owns the box's default microphone	2026-08-14 10:12:00 +02:00
enricobuehler	0bba8d7f8c	fix(audio/windows): the default recording device is session-scoped now — an idle host parked every game's voice input on a dead virtual mic ... The wiring pass asserted 'default recording = virtual mic capture' on EVERY pass — including the mic pump's eager boot pass — so an idle box permanently held the Windows default recording device (and, since SetDefaultEndpoint covers eCommunications, every game's voice input) on a virtual microphone whose render feeder is idle-stopped, with no restore path at all: not at session end, not at service stop. Field-measured 2026-08-14: Helldivers 2 (Wwise + always-on voice) played LOCALLY on an idle host tanks to 2–5 FPS 1% lows, and mmsys.cpl's own Recording tab goes unresponsive polling the same endpoint; the reporter's Sound settings showed 'Punktfunk Microphone — Dispositivo predefinito' with the host idle. The recording default now follows the exact discipline the playback default has always had — parked only while a desktop-audio capture is open, with the operator's device remembered (in memory + an on-disk crash marker, audio-default-rec.prev), restored on capture close, recovered after a crash on the next boot's first wiring pass, and unparked by the uninstaller. A game launched during a stream still binds the client's mic (the park runs before the session's game does); one launched before the stream keeps the operator's own microphone — the honest answer. Because earlier builds recorded nothing to restore, an upgraded box would have stayed wedged on the virtual mic forever: an idle-pass hygiene now moves a default found sitting on the plan's mic capture back to the first REAL microphone (pure picker wiring_plan::real_capture, unit-tested against the field box's exact recording-tab inventory). Session passes are exempt, and a box with no real microphone is left alone. Also folded in: the mid-idle drift re-assert is gone with the gating, so a mic-pump reopen no longer stomps a recording device the operator chose themselves.	2026-08-14 10:11:58 +02:00