Read the statement by Michael Teeuw here.
MM Screen goes blank 5-20min after starting (was stable on 2.31) - Pi Zero 2W running MagicMirrorOS
-
MM Screen goes blank 5-20min after starting (was stable on 2.31) - Pi Zero 2W running MagicMirrorOS
Have recently reimaged my MM, and since the rebuild, the MM screen goes blank 5-20min after starting. Is intermittent though, sometimes stays up for a while.
Am using MagicMirrorOS, which uses Khassel’s docker implementation on a lightweight OS build. Running this on a Pi Zero 2W.
To isolate the cause, reimaged it again, and progressively configured it until the issue started to reoccur.
(I store my configuration files in a private git repo that have a script to pull them on starting MM - so can roll configuration back and forth).With the below config.js file, electron crashes - about 5-30min after docker is started. If I remove the calendar & CalendarExt3 module config block - then it stays up longer (hours) but still crashes (sometimes does still crash on first start).
Any suggestions on where to next to troubleshoot this was would be appreciated.
config.js
/* Config Sample * * For more information on how you can configure this file * see https://docs.magicmirror.builders/configuration/introduction.html * and https://docs.magicmirror.builders/modules/configuration.html * * You can use environment variables using a `config.js.template` file instead of `config.js` * which will be converted to `config.js` while starting. For more information * see https://docs.magicmirror.builders/configuration/introduction.html#enviromnent-variables */ let config = { address: "0.0.0.0", // Address to listen on, can be: // - "localhost", "127.0.0.1", "::1" to listen on loopback interface // - another specific IPv4/6 to listen on a specific interface // - "0.0.0.0", "::" to listen on any interface // Default, when address config is left out or empty, is "localhost" port: 8080, basePath: "/", // The URL path where MagicMirror² is hosted. If you are using a Reverse proxy // you must set the sub path here. basePath must end with a / ipWhitelist: [], // Set [] to allow all IP addresses // or add a specific IPv4 of 192.168.1.5 : // ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.1.5"], // or IPv4 range of 192.168.3.0 --> 192.168.3.15 use CIDR format : // ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.3.0/28"], useHttps: false, // Support HTTPS or not, default "false" will use HTTP httpsPrivateKey: "", // HTTPS private key path, only require when useHttps is true httpsCertificate: "", // HTTPS Certificate path, only require when useHttps is true language: "en", locale: "en-US", // this variable is provided as a consistent location // it is currently only used by 3rd party modules. no MagicMirror code uses this value // as we have no usage, we have no constraints on what this field holds // see https://en.wikipedia.org/wiki/Locale_(computer_software) for the possibilities logLevel: ["INFO", "LOG", "WARN", "ERROR"], // Add "DEBUG" for even more logging timeFormat: 24, units: "metric", modules: [{ module: "MMM-mmpm" }, { module: "alert", }, { module: "calendar", header: "Family Calendar", //position: "fullscreen_above", config: { broadcastPastEvents: true, maximumNumberOfDays: 28, pastDaysCount: 13, maximumEntries: 300, fetchInterval: 960000, calendars: [ { url: "https://calendar.google.com/calendar/ical/[Redacted]/basic.ics", name: "Scott", color: "ForestGreen", }, { url: "https://calendar.google.com/calendar/ical/[Redacted]/basic.ics", name: "Sarah", color: "deeppink", }, { url: "https://calendar.google.com/calendar/ical/[Redacted]/basic.ics", name: "Skyla", color: "Gold", }, { url: "https://calendar.google.com/calendar/ical/[Redacted]/basic.ics", name: "Willow", color: "Gold", }, { url: "https://calendar.google.com/calendar/ical/[Redacted]/basic.ics", name: "Family", color: "Gold", }, ] } }, { module: "MMM-CalendarExt3", //position: "fullscreen_above", position: "top_bar", title: "Family Calendar", config: { instanceId: "familyCalendar", mode: "week", weekIndex: 0, weeksInView: 4, displayEndTime: true, useSymbol: false, locale: 'en-NZ', refreshInterval: 660000, eventTimeOptions: {timeStyle: 'short', hour12: false}, maxEventLines: 8, firstDayOfWeek: 1, fontSize: '20px', eventHeight: '20px', calendarSet: ['Scott','Sarah','Skyla','Willow','Family'], } }, { module: "clock", position: "bottom_left" }, { module: "MMM-AVStock", position: "bottom_center", config: { mode: "grid", classes: "xsmall", maxTableRows: 5, symbols : ["NZDUSD=X", "NZDAUD=X", "NZDEUR=X", "NZDJPY=X", "^NZ50", "^GSPC", "^AXJO", "^STOXX", "^N225", "IBM", "BRK-B", "RKLB"], alias: ["USD", "AUD", "EUR", "YEN", "NZX50", "S&P 500", "ASX 200", "STXE 600", "Nikkei 225"], showChart: false, showVolume: false, decimals: 3, } }, { module: "weather", position: "bottom_right", config: { weatherProvider: "openmeteo", type: "current", lat: -41.323407, lon: 174.7984817 }, }, { module: "updatenotification", //position: "bottom_bar" }, ] }; /*************** DO NOT EDIT THE LINE BELOW ***************/ if (typeof module !== "undefined") { module.exports = config; }Error log extracts
scottwalsh@calendar:~ $ docker logs mm [entrypoint 08:10:08.796] [INFO] copy default modules > magicmirror@2.32.0 start > node --run start:x11 [2025-07-19 08:11:20.897] [LOG] Starting MagicMirror: v2.32.0 [2025-07-19 08:11:22.511] [LOG] Loading config ... [2025-07-19 08:11:22.530] [LOG] config template file not exists, no envsubst [Snip] [2025-07-19 08:13:26.838] [INFO] Checking git for module: MagicMirror [2025-07-19 08:13:27.494] [ERROR] We expected a redirect to guce.yahoo.com, but got https://finance.yahoo.com/quote/AAPL/ [2025-07-19 08:13:27.497] [ERROR] We'll try to continue anyway - you can safely ignore this if the request succeeds [2025-07-19 08:13:27.508] [LOG] Success. Cookie expires on Sun Jul 19 2026 14:13:26 GMT+1200 (New Zealand Standard Time) [2025-07-19 08:13:27.547] [LOG] fetch https://query1.finance.yahoo.com/v1/test/getcrumb [2025-07-19 08:13:30.595] [LOG] New crumb: WxlJ.T9HZVG [30:0719/132347.804243:ERROR:ui/events/platform/wayland/wayland_event_watcher.cc:78] Fatal Wayland communication error: Broken pipe. [30:0719/132347.898470:FATAL:electron/shell/browser/electron_browser_main_parts.cc:502] Failed to shutdown. scottwalsh@calendar:~ $ scottwalsh@calendar:~ $ docker logs labwc 00:00:00.009 [INFO] [seatd/seat.c:48] Created VT-bound seat seat0 00:00:00.010 [INFO] [seatd/seatd.c:194] seatd started failed to connect to display failed to connect to display failed to connect to display 00:00:02.888 [INFO] [seatd/server.c:145] New client connected (pid: 1, uid: 1000, gid: 1000) 00:00:02.889 [INFO] [seatd/seat.c:239] Added client 1 to seat0 00:00:02.889 [INFO] [seatd/seat.c:563] Opened client 1 on seat0 failed to connect to display failed to connect to display failed to connect to display HDMI-A-1 "Stargate Technology 1560FX (HDMI-A-1)" Make: Stargate Technology Model: 1560FX Serial: (null) Physical size: 330x220 mm Enabled: yes Modes: 1920x1080 px, 60.000000 Hz (preferred, current) 1920x1080 px, 60.000000 Hz 1920x1080 px, 59.939999 Hz 1680x1050 px, 59.882999 Hz 1400x1050 px, 59.948002 Hz 1280x1024 px, 60.020000 Hz 1440x900 px, 59.901001 Hz 1280x960 px, 60.000000 Hz 1366x768 px, 59.999001 Hz 1280x720 px, 60.000000 Hz 1280x720 px, 60.000000 Hz 1280x720 px, 59.939999 Hz 1024x768 px, 60.004002 Hz 800x600 px, 60.317001 Hz 800x600 px, 59.863998 Hz 800x600 px, 56.250000 Hz 640x480 px, 60.000000 Hz 640x480 px, 59.939999 Hz 640x480 px, 59.971001 Hz Position: 0,0 Transform: normal Scale: 1.000000 Adaptive Sync: disabled Fri Jul 18 20:11:10 UTC 2025 wlr-randr errors "failed to connect to display" so killing container. 00:01:08.126 [INFO] [seatd/seat.c:158] No clients on seat0 to activate 00:01:08.190 [INFO] [seatd/seat.c:290] Removed client 1 from seat0 00:01:08.195 [INFO] [seatd/client.c:496] Client disconnected 00:00:00.000 [INFO] [seatd/seatd.c:167] Removing leftover socket at /run/seatd.sock 00:00:00.000 [INFO] [seatd/seat.c:48] Created VT-bound seat seat0 00:00:00.000 [INFO] [seatd/seatd.c:194] seatd started failed to connect to display 00:00:00.818 [INFO] [seatd/server.c:145] New client connected (pid: 1, uid: 1000, gid: 1000) 00:00:00.819 [INFO] [seatd/seat.c:239] Added client 1 to seat0 00:00:00.819 [INFO] [seatd/seat.c:563] Opened client 1 on seat0 failed to connect to display failed to connect to display failed to connect to display HDMI-A-1 "Stargate Technology 1560FX (HDMI-A-1)" Make: Stargate Technology Model: 1560FX Serial: (null) Physical size: 330x220 mm Enabled: yes Modes: 1920x1080 px, 60.000000 Hz (preferred, current) 1920x1080 px, 60.000000 Hz 1920x1080 px, 59.939999 Hz 1680x1050 px, 59.882999 Hz 1400x1050 px, 59.948002 Hz 1280x1024 px, 60.020000 Hz 1440x900 px, 59.901001 Hz 1280x960 px, 60.000000 Hz 1366x768 px, 59.999001 Hz 1280x720 px, 60.000000 Hz 1280x720 px, 60.000000 Hz 1280x720 px, 59.939999 Hz 1024x768 px, 60.004002 Hz 800x600 px, 60.317001 Hz 800x600 px, 59.863998 Hz 800x600 px, 56.250000 Hz 640x480 px, 60.000000 Hz 640x480 px, 59.939999 Hz 640x480 px, 59.971001 Hz Position: 0,0 Transform: normal Scale: 1.000000 Adaptive Sync: disabled Sat Jul 19 01:23:47 UTC 2025 wlr-randr errors "failed to connect to display" so killing container. 05:12:15.325 [INFO] [seatd/seat.c:158] No clients on seat0 to activate 05:12:15.379 [INFO] [seatd/seat.c:290] Removed client 1 from seat0 05:12:15.380 [INFO] [seatd/client.c:496] Client disconnected 00:00:00.000 [INFO] [seatd/seatd.c:167] Removing leftover socket at /run/seatd.sock 00:00:00.000 [INFO] [seatd/seat.c:48] Created VT-bound seat seat0 00:00:00.000 [INFO] [seatd/seatd.c:194] seatd started failed to connect to display 00:00:00.881 [INFO] [seatd/server.c:145] New client connected (pid: 1, uid: 1000, gid: 1000) 00:00:00.881 [INFO] [seatd/seat.c:239] Added client 1 to seat0 00:00:00.882 [INFO] [seatd/seat.c:563] Opened client 1 on seat0 failed to connect to display failed to connect to display HDMI-A-1 "Stargate Technology 1560FX (HDMI-A-1)" Make: Stargate Technology Model: 1560FX Serial: (null) Physical size: 330x220 mm Enabled: yes Modes: 1920x1080 px, 60.000000 Hz (preferred, current) 1920x1080 px, 60.000000 Hz 1920x1080 px, 59.939999 Hz 1680x1050 px, 59.882999 Hz 1400x1050 px, 59.948002 Hz 1280x1024 px, 60.020000 Hz 1440x900 px, 59.901001 Hz 1280x960 px, 60.000000 Hz 1366x768 px, 59.999001 Hz 1280x720 px, 60.000000 Hz 1280x720 px, 60.000000 Hz 1280x720 px, 59.939999 Hz 1024x768 px, 60.004002 Hz 800x600 px, 60.317001 Hz 800x600 px, 59.863998 Hz 800x600 px, 56.250000 Hz 640x480 px, 60.000000 Hz 640x480 px, 59.939999 Hz 640x480 px, 59.971001 Hz Position: 0,0 Transform: normal Scale: 1.000000 Adaptive Sync: disabled scottwalsh@calendar:~ $ scottwalsh@calendar:~ $ -
Moving to 64bit looks like might have helped. Up for 18 hours since rebuilding so far with my full calendar configuration.
Observation - took about 30 min to boot through displaying the calendar. Load average getting up to 20.0+ during boot, assume swapping a lot via the slow SD card interface. So although looks more stable, much slower performance.
-
Did note the following error from the labwc container about four hours after starting it in the above example errors, so suspecting is part of it.
So I guess how can I troubleshoot/avoid this event.
And/or have the mm container reconnect after this occurs.wlr-randr errors "failed to connect to display" so killing container. -
I gave up with Pi Zero 2W. The memory is to low.
I suspect this is your problem when removing modules results in running longer before crashing.
You maybe got a newer base OS when reimaging and the mm dependencies grows with every release (e.g. node, electron).
You did not write which OS you are using, 32-bit or 64-bit. The 32-bit is more resource-saving.
-
@karsten13 said in MM Screen goes blank 5-20min after starting (was stable on 2.31) - Pi Zero 2W running MagicMirrorOS:
You did not write which OS you are using, 32-bit or 64-bit. The 32-bit is more resource-saving
Hadn’t checked, until now. Have been using the 32-bit version.
Will reimage with the 64-bit version and see if it is more stable. -
Will reimage with the 64-bit version and see if it is more stable.
I think not … but you can try it.
-
@scottwalsh the 64bit version takes about 500m more memory than the 32 bit version…
you need to increase the swap space on the 2w, as it only has 512m ram.
but you WILL page/swap a LOT, so the sd card speed is critical.before bootable USB support came along,
I built and SD card image
then copied that to a high speed USB stick, and modified the /etc/fstab to map the mounted space to the USB after boot from the SD card. (this required changing the UUID of the USB stick partition)this moved all the runtime I/O access to the USB stick…
-
@sdetweil said in MM Screen goes blank 5-20min after starting (was stable on 2.31) - Pi Zero 2W running MagicMirrorOS:
Away
sdetweil
3 minutes ago@scottwalsh the 64bit version takes about 500m more memory than the 32 bit version…
Thanks for the tip, what’d you recommend as a min swap size? Will just try it off the SD card to start (as don’t have a USD at hand).
-
@scottwalsh on the low ram machines I set it to 1024m
in the installer script…free -m
will give you defined and used for physical and swap
from my 8 gig pi 4
free -m total used free shared buff/cache available Mem: 7810 1418 2106 19 4426 6391 Swap: 2047 8 2039 -
is already set to 1024
-
@karsten13 he should examine use and adjust as required…
