GrigoandClaude Opus 5.5
d71fa812da
On PoE sites the MIPI-DSI panel can lose its init on a supply dip while the RK3566 keeps running; the UI may also hang or exit. Three layers: - hardware watchdog: systemd RuntimeWatchdogSec=20s (system.conf.d) - GUI: SdWatchdog pings systemd per swapped frame (WATCHDOG_USEC=30s, enabled by the binary so older versions run under the same unit) and writes run/qt.frame; buttontask.service gets Restart=always, NotifyAccess=main, TimeoutAbortSec=10s - bt-displaywatch (root, buttontask-displaywatch.service): kernel DRM/DSI timeouts, eth link down->up (PoE dip hint), stale UI frames, restart storms -> panel re-init (stop UI, fb0 blank 4->0, start UI), repeated -> reboot (max 3/day, never during OTA); incident log in /var/log/buttontask/ Manual recovery: hold one finger 10 s in the bottom-left corner (panels are single-touch). Delivered by OTA via bt-update sync_system; the web service runs `bt-update sync-system` at start for devices updated by an older bt-update. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
34 lines
1.2 KiB
Desktop File
34 lines
1.2 KiB
Desktop File
[Unit]
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Description=ButtonTask Qt5 UI
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After=NetworkManager.service
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Wants=NetworkManager.service
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# Never give up restarting; restart storms are escalated to a reboot by
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# buttontask-displaywatch (bt-displaywatch), with a daily cap.
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StartLimitIntervalSec=0
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[Service]
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Type=simple
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# GUI watchdog: the binary enables it itself (WATCHDOG_USEC=30s after the
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# first rendered frame) and pings once per real frame. No WatchdogSec= here,
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# so older binaries without the ping still run under this unit.
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NotifyAccess=main
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# On a watchdog timeout systemd sends SIGABRT; if the process does not die
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# within 10 s (stopped / stuck), SIGKILL instead of the default 90 s wait.
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TimeoutAbortSec=10s
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User=buttontask
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Group=buttontask
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SupplementaryGroups=video render input
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WorkingDirectory=/opt/buttontask/current
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Environment=BUTTONTASK_ROOT=/opt/buttontask
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Environment=BUTTONTASK_CONFIG=/opt/buttontask/config/config.json
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Environment=QT_QPA_PLATFORM=eglfs
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Environment=QT_QPA_EGLFS_INTEGRATION=eglfs_kms
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Environment=QT_QPA_EGLFS_HIDECURSOR=1
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Environment=XDG_RUNTIME_DIR=/tmp/runtime-buttontask
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ExecStart=/opt/buttontask/current/ButtonTask --config /opt/buttontask/config/config.json
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Restart=always
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RestartSec=3
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[Install]
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WantedBy=multi-user.target
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