yaris-obd/BUGS.md

yaris-obd Bug Tracker

Standalone bug/issue tracker. One ## BUG-XX per issue. Numbering sequential. Status: OPEN → IN PROGRESS → CLOSED (with commit ref + verification). When CLOSED, move the entire entry to Resolved — don't duplicate.

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Open bugs

BUG-19 — Dashboard OBD values slow to appear while the car is running

• Status: OPEN 2026-08-13
• Phase: 29
• Symptom: on the Pi dashboard, the speed/RPM/coolant/fuel/throttle cards stay on "—" for a long time after the page loads (or after ignition) before populating, even though the car is running and OBD is connected.
• Cause: the value cards were populated only by socket.io push events from the OBD polling threads — the dashboard never pulled a current snapshot on load, so a freshly loaded page had to wait for the next poll tick (plus any reconnect/probe latency). /api/obd/status only returned the connection state, not the actual values, so there was no REST fallback either.
• Fix: emit a full current-value snapshot on socket connect, and extend /api/obd/status to return live speed/RPM/coolant/fuel/throttle/MIL so the dashboard fills the cards immediately on load (and every 15 s) via REST. Needs in-car verification.

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Resolved

BUG-18 — Pi needs offline timekeeping (no RTC)

• Status: CLOSED 2026-08-14
• Commit: PENDING
• Fix: DS3231 RTC module installed on the free I²C bus (SDA pin 3, SCL pin 5, 3.3V pin 1, GND pin 6) with a CR2032 (charge diode removed). Pi config: dtparam=i2c_arm=on + dtoverlay=i2c-rtc,ds3231 in /boot/firmware/config.txt, i2c-tools installed, fake-hwclock disabled, i2c-dev persisted via modules-load.d. CR1220 also installed in the SIM868 HAT holder (secondary RTC backup).
• Verification: DS3231 probes at 0x68 (UU), its 24C32 EEPROM at 0x57, /dev/rtc0 registered. Power-cycle test passed — after a full unplug/replug the boot log reads setting system clock to 2026-08-14… from the RTC (was 2000-01-01 before), and hwclock -r matches system time. (Debugging note: the first scans were an empty bus due to a data-line wiring issue, resolved during re-soldering.)

BUG-17 — Server trip timestamps wrong after an offline period

• Status: CLOSED 2026-08-14
• Commit: PENDING
• Fix: root cause was BUG-18 — no RTC, so offline the Pi ran on a stale fake-hwclock time and NTP snapped the clock forward mid-trip. Fixed by installing the DS3231 (BUG-18).
• Verification: RTC power-cycle test passed (BUG-18). Historical trips 25136/25137 keep their bad timestamps (raw tracking rows were recorded with a wrong clock and can't be retroactively corrected) — future trips will be correct.

BUG-15 — Phone can't host the hotspot and connect to the Pi's AP at once

• Status: CLOSED 2026-08-13
• Commit: ab79820
• Resolution: Confirmed a phone-OS limitation, not a Pi bug. A single phone can't cleanly be both the Pi's internet uplink (hotspot/AP host) and its WiFi client (on the Pi's AP) at the same time — doing so routes the hotspot's traffic back through the no-internet AP, creating a routing loop (NameResolutionError on uploads).
• Workaround (documented): the phone must be LTE-only (WiFi off) to serve as the Pi's uplink. Reach the Pi UI from that phone over the hotspot at http://<pi-hotspot-ip> (Settings → "In-car hotspot"), or from a second device on the AP.
• Pi-side hardening shipped: phone-hotspot profile forces public DNS (8.8.8.8/1.1.1.1), and the Settings page surfaces the correct URL per uplink mode.

BUG-16 — Trip missing from Pi local history (present on server)

• Status: CLOSED 2026-08-13
• Commits: e5ac14e, f5f20c3
• Fix: two root causes:
  1. connect_obd() set _car_ever_connected without a global declaration, so the module-level flag was never set and was_car_ever_connected() always returned False — local trip building had been silently blocked ever since BUG-10 landed. Added the global declaration and now persist the flag to the settings table (car_ever_connected) so it survives reboots.
  2. Speed-only rows (NULL GPS, from FEAT-12) made trips start/end with NULL coordinates, violating the trips.*GPSX NOT NULL constraint. The trip builder now uses the first/last GPS-bearing row for start/end coordinates, and skips a trip that never got any fix.
• Verification: backfilled the persisted flag on the Pi (the car has been connected before), triggered a rebuild — the local trips table now contains the 2026-08-13 drive (e.g. a 48.5 km trip) plus several earlier trips that had been silently dropped. trip_build_state advanced to LAST_TRACKING_ID=7009. Timestamps for the 08-13 data are still wrong — that's BUG-17 (no RTC).

BUG-13 — Server Web UI shows raw coordinates instead of geocoded location on trips

• Status: CLOSED 2026-08-12
• Commit: 8309819
• Fix: Server _geocode_cached() now always returns a non-empty string with coordinate fallback when Nominatim/reverse_geocoder fail. /api/geocode always returns HTTP 200 with {label} (never 204). Batch endpoint includes all keys. Nominatim params + reverse_geocoder mode aligned with Pi. Pi also hardened against empty reverse_geocoder label.
• Verification: Deployed to Unraid (Docker rebuild) and Pi (git pull + restart). Both healthy. Unraid now uses SSH deploy key for git fetch (was failing on HTTPS auth).

BUG-14 — Geocode slow/unreliable — location labels fail to load during scrubbing

• Status: CLOSED 2026-08-12
• Commit: 0ddfe39
• Fix: Ditched Nominatim entirely — it was slow (1 req/sec rate limit, ~4s timeouts) and often blocked/throttled from Docker/Cloudflare IPs. Replaced with reverse_geocoder exclusively: an offline Python library that maps lat/lon → city/province instantly with no network. JS preload() switched from N individual GET requests to single POST /api/geocode/batch. Server batch endpoint simplified to sequential loop with lru_cache + dedup.
• Verification: POST /api/geocode/batch returns {"Montreal, Quebec", "Longueuil, Quebec"} instantly on Pi. Server Docker rebuilt and healthy.

BUG-01 — WiFi/hotspot unreachable from phone while cell data is on

• Status: CLOSED 2026-08-11
• Fix: Dual-radio — wlan0="yaris 911" at 10.42.0.1 (password "yaris911!"), wlan1=uplink. Never touches wlan0. Phone-hotspot auto-connect on wlan1 within ~60s, falls back to home-wifi. Settings page shows in-car access card.
• Verification: iOS + Android connect to AP, yaris.local resolves. Phone-hotspot uplink tested: auto-connects when hotspot enabled, falls back when disabled. wlan0 AP stays up throughout.

BUG-02 — Micro-USB power port on the Pi is physically damaged

• Status: CLOSED 2026-08-11
• Fix: Hard-wired 5V/GND directly to GPIO header — red to Pin 2 (5V), black to Pin 6 (GND), bypassing the worn micro-USB port.
• Verification: vcgencmd get_throttled returns 0x0 — no undervoltage, no throttling. Pi runs at full 1.2 GHz. GPS has fix.

BUG-03 — DTC/MIL codes never persisted

• Status: CLOSED 2026-08-11
• Commit: e2f2314
• Fix: save_dtc_state() persists MIL+codes each poll. /api/dtc falls back to get_persisted_dtc_state() when OBD offline. Cleared codes tracked via IS_SET timestamps.
• Verification: Deployed to Pi, /api/dtc returns persisted snapshot, stats show active_dtc: 0.

BUG-04 — Server merges two trips into one

• Status: CLOSED 2026-08-11
• Commit: 96fb897
• Fix: Replaced time-gap splitting with Pi's motion-aware logic: OBD > 1 km/h primary, GPS >= 8m × 3 consecutive fallback, 5-min inactivity gap.
• Verification: Server trips cleared + recomputed. 17 trips on both Pi and server.

BUG-05 — Server route replay speed_source always "gps"

• Status: CLOSED 2026-08-11
• Commit: e2f2314
• Fix: "obd" if speed > 0 else "gps" matching Pi logic.
• Verification: Docker rebuild, /health OK LAN + Cloudflare.

BUG-11 — Dashboard GPS shows "Stale fix" while Status shows "Live fix"

• Status: CLOSED 2026-08-11
• Commit: 9733036
• Fix: renderGpsStatus() now reads status.latitude/status.longitude from the /api/gps/status response (not just socket events). Status page now uses the same 30s staleness threshold (fix_age_seconds > 30 → "Stale fix") instead of calling any fix "Live" regardless of age.
• Verification: Deployed to Pi, dashboard GPS card now shows lat/lon coordinates even when fix is stale. Both pages agree on fix status.

BUG-06 — Server timestamps are shifted (naive local time stored as UTC)

• Status: CLOSED 2026-08-11
• Commit: 7ce2a1e (upload fix), manual migration on server
• Fix:
  1. _to_tz_aware() in app_upload.py converts naive SQLite timestamps to TZ-aware ISO before upload (2026-08-10 19:27:30 → 2026-08-10T19:27:30-04:00).
  2. One-time SQL migration on Unraid: shifted 3,593 tracking rows +4h EDT, cleared deleted-trip markers, recomputed 43 trips from corrected data.
• Verification: Server trips now show Aug 10 at 7:27 PM / 7:58 PM (was 3:27 / 3:58).

BUG-12 — Dashboard OBD shows "—" while Status page shows correct OBD state

• Status: CLOSED 2026-08-11
• Commit: 91281b1
• Fix: Added /api/obd/status endpoint. Dashboard calls refreshObdStatus() on load + every 15s. Socket events still update in real-time. Side fix: Number() wrap on API string lat/lon prevents crash. Socket gps_location now passes lat/lon to renderGpsStatus (a4a92cc).
• Verification: Dashboard shows "Adapter only" matching Status page. GPS lat/lon display correctly. Confirmed on live Pi.

BUG-02 — Micro-USB power port on the Pi is physically damaged

• Status: CLOSED 2026-08-11
• Fix: Hard-wired 5V/GND directly to GPIO header — red to Pin 2 (5V), black to Pin 6 (GND), bypassing the worn micro-USB port.
• Verification: vcgencmd get_throttled returns 0x0 — no undervoltage, no throttling. GPS has fix. Pi runs at full 1.2 GHz.

BUG-07 — Trip replay on portal sometimes does nothing

• Status: CLOSED 2026-08-11
• Commit: fa93384
• Fix: Full rewrite of static/js/history.js: unified AbortController cancels fetch
  • all downstream rendering on trip switch; 300ms debounce prevents double-tap stacking; loading spinner on map + .table-active row highlight give clear feedback; geocode preload starts immediately before map rendering so cache is warm for the scrubber; signal.aborted guards after every async step (route build, fitBounds, timeline init).
• Verification: Deployed to Pi and server. Rapid trip-switching no longer freezes. Verified on both platforms 2026-08-11.

BUG-08 — No trip deletion on local Pi

• Status: CLOSED 2026-08-11
• Commit: c5c478b
• Fix: deletable macro, window.confirmDelete, DELETE /api/trip/<id>, configurable data-delete-url in shared history.js. Raw tracking preserved.
• Verification: Trip 1967 deleted (18→17 trips), 2028 tracking rows preserved.

BUG-09 — Server trip scrubber geocoding is slow

• Status: CLOSED 2026-08-11
• Fix: preloadGeocodes() batch-fetches all unique coords (concurrency 4) on trip load. geocodePoint() checks in-memory cache first.
• Verification: preloadGeocodes present in history.js on both Pi and server Docker container.

BUG-10 — GPS-only false trips when car not connected

• Status: CLOSED 2026-08-11
• Fix: _car_ever_connected flag in app_obd.py. build_trip_summaries() returns empty list when car was never connected.
• Verification: Pi bench-test shows 0 trips. No OBD = no GPS-only trips.