@sdetweil
Yes I agree, the memory is very limiting.
Although mine is a Pi3 model A, but the memory is 512mb like the pi02w.
When I started the project I had something different in my mind and now I’m pushing it to the limit.

But as I said I checked everytime the CPU temperature, memory and generally resources usage from “htop” command.

This morning MM started with calendar error, I did a “pm2 restart mm” and goes OK.

Now I put “sleep 120” inside mm.sh as first line
I restarted it now

Memory BEFORE restart was this
total used free shared buff/cache available
Mem: 427 156 90 70 179 147
Swap: 1023 231 792

Not so good but not so bad, same time.

I’ll check if this delay could help.
Is there a way to put a little delay between the loading of every module ? Maybe 5/10 seconds, I though it could be very helpful on a limited machine like mine :)

@sdetweil
behaviour seems the same. I suspect this, could this issues be related to the raspberry pi 3 computing capacity? could it be not enough?

Is there a way to delay the pm2 automatic startup.
For example I though to try a delay of 1-2 minutes so:
1- raspbian startup
2- delay of 1-2 minutes to make sure all the services are up and the cpu is idle
3- mm startup
4- if it’s possible, I will add a delay to the modules startup also, maybe 20 seconds between every module loading

Honestly I checked his capacity a lot of times using the htop, free and cpu temperature command.
With my amazement I see everytime an amount of free memory, low cpu load and good cpu temp (like 40 to 50 degrees)

But if there is a way to delay everything, I’ll just check if with a “calmly” startup It will go better

@sdetweil
I did it.
I usually put the “disabled: true” before the module name line, instead of after
Is it different?

@sdetweil

Recreated 2 times.

First time calendar loaded Holidays calendar only

[2025-03-19 22:23:55.917] [LOG] Create new calendarfetcher for url: https://calendar.google.com/calendar/ical/**MYCAL**>
[2025-03-19 22:23:56.467] [LOG] Create new calendarfetcher for url: https://calendar.google.com/calendar/ical/**HOLIDAYPUBLICCAL**/publ>
[2025-03-19 22:23:56.675] [LOG] Create new newsfetcher for url: https://www.ansa.it/sito/ansait_rss.xml - Interval: 300000
[2025-03-19 22:23:56.698] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:23:56.836] [LOG] MMM-Formula1 received a notification: CONFIG
[2025-03-19 22:23:56.838] [LOG] MMM-Formula1 is requesting the SCHEDULE on url https://api.jolpi.ca/ergast/f1/2025.json
[2025-03-19 22:24:02.687] [INFO] updatenotification: Updater Class Loaded!
[2025-03-19 22:24:02.733] [INFO] updatenotification: Checking PM2 using…
[2025-03-19 22:24:02.735] [INFO] updatenotification: [PM2] You are not using pm2
[2025-03-19 22:24:02.740] [INFO] Checking git for module: MMM-CalendarExt3
[2025-03-19 22:24:03.525] [INFO] Checking git for module: MMM-Growatt
[2025-03-19 22:24:03.850] [INFO] Checking git for module: MMM-Formula1
[2025-03-19 22:24:04.283] [INFO] Checking git for module: MMM-RAIN-MAP
[2025-03-19 22:24:07.693] [INFO] Checking git for module: MagicMirror
[2025-03-19 22:24:08.072] [LOG] MMM-Formula1 is returning the SCHEDULE for the season
[2025-03-19 22:24:40.393] [INFO] Newsfeed-Fetcher: Broadcasting 28 items.
[2025-03-19 22:24:45.457] [INFO] Calendar-Fetcher: Broadcasting 61 events from https://calendar.google.com/calendar/**MYPRIVCAL**>
[2025-03-19 22:24:46.745] [INFO] Calendar-Fetcher: Broadcasting 36 events from https://calendar.google.com/calendar/**PUBLICHOLIDAYCAL/>
[2025-03-19 22:24:57.986] [LOG] Publishing GROWATT data
[2025-03-19 22:25:51.745] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:25:54.191] [LOG] Publishing GROWATT data
[2025-03-19 22:27:51.368] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:27:53.447] [LOG] Publishing GROWATT data

---

2nd time I got the error and no calendar loaded:

[2025-03-19 22:32:06.388] [LOG] Create new calendarfetcher for url: https://calendar.google.com/calendar/**PUBLICHOLIDAYCAL**>
[2025-03-19 22:32:07.767] [LOG] Create new calendarfetcher for url: https://calendar.google.com/calendar/**MYPRIVCAL**>
[2025-03-19 22:32:07.881] [LOG] Create new newsfetcher for url: https://www.ansa.it/sito/ansait_rss.xml - Interval: 300000
[2025-03-19 22:32:07.903] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:32:08.057] [INFO] updatenotification: Updater Class Loaded!
[2025-03-19 22:32:08.059] [INFO] updatenotification: Checking PM2 using…
[2025-03-19 22:32:08.063] [INFO] updatenotification: [PM2] You are not using pm2
[2025-03-19 22:32:08.066] [INFO] Checking git for module: MMM-CalendarExt3
[2025-03-19 22:32:08.132] [LOG] MMM-Formula1 received a notification: CONFIG
[2025-03-19 22:32:08.134] [LOG] MMM-Formula1 is requesting the SCHEDULE on url https://api.jolpi.ca/ergast/f1/2025.json
[2025-03-19 22:32:08.516] [INFO] Checking git for module: MMM-Growatt
[2025-03-19 22:32:10.043] [INFO] Checking git for module: MMM-Formula1
[2025-03-19 22:32:11.007] [INFO] Checking git for module: MMM-RAIN-MAP
[2025-03-19 22:32:14.346] [INFO] Newsfeed-Fetcher: Broadcasting 28 items.
[2025-03-19 22:32:14.404] [LOG] MMM-Formula1 is returning the SCHEDULE for the season
[2025-03-19 22:32:14.414] [INFO] Checking git for module: MagicMirror
[2025-03-19 22:32:48.815] [INFO] Calendar-Fetcher: Broadcasting 61 events from https://calendar.google.com/calendar/**MYPRIVCAL**>
[2025-03-19 22:32:50.508] [INFO] Calendar-Fetcher: Broadcasting 36 events from https://calendar.google.com/calendar/**PUBLICHOLIDAYCAL**>
[2025-03-19 22:32:51.949] [LOG] Publishing GROWATT data
[2025-03-19 22:34:08.485] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:34:14.955] [LOG] Publishing GROWATT data
[2025-03-19 22:36:06.721] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:36:09.906] [LOG] Publishing GROWATT data
[2025-03-19 22:37:16.339] [INFO] Newsfeed-Fetcher: Broadcasting 28 items.
[2025-03-19 22:38:07.502] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:38:10.302] [LOG] Publishing GROWATT data
[2025-03-19 22:40:09.496] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:40:12.087] [LOG] Publishing GROWATT data
[2025-03-19 22:42:11.495] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:42:13.869] [LOG] Publishing GROWATT data
[2025-03-19 22:42:16.743] [INFO] Newsfeed-Fetcher: Broadcasting 28 items.
[2025-03-19 22:44:13.525] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:44:15.562] [LOG] Publishing GROWATT data
[2025-03-19 22:46:15.496] [LOG] MMM-Growatt: GROWATT_GET_DATA
[2025-03-19 22:46:17.289] [LOG] Publishing GROWATT data
[2025-03-19 22:47:17.588] [INFO] Newsfeed-Fetcher: Broadcasting 28 items.
[2025-03-19 22:47:20.690] [LOG] Shutting down server…
[2025-03-19 22:47:20.696] [LOG] Stopping module helper: calendar

Honestly… I don’t see nothing strange.
But when this error appear, if I left MM on for a day, it wont load calendar entries.

I have to restart it one or more time till it show entries

@sdetweil

It’s very long.

I checked the end paragraph ad I saw just errors from growatt module.
Do I have to search something in particular?

@sdetweil

git branch

• _fix_clipping
  master

Error appeared now:
" Error in the calendar module. Check logs for more detail."

I don’t know where to find calendar logs but with “pm2 logs”
I don’t see any errors information about calendar issue, just something about another module.

/home/MYUSER/.pm2/logs/mm-error.log last 15 lines:
0|mm | socket: {
0|mm | localAddress: 'MMIPADDRESS,
0|mm | localPort: MMPORT,
0|mm | remoteAddress: undefined,
0|mm | remotePort: undefined,
0|mm | remoteFamily: undefined,
0|mm | timeout: undefined,
0|mm | bytesWritten: 322,
0|mm | bytesRead: 0
0|mm | }
0|mm | }
0|mm | }
0|mm | [2025-03-19 13:30:59.574] [ERROR] Failed to retrieve repo info for MMM-Growatt: Error: Command failed: cd /home/MYUSER/MagicMirror/modules/MMM-Growatt && git fetch -n --dry-run
0|mm | fatal: unable to access ‘https://github.com/dekinet/MMM-Growatt.git/’: Empty reply from server
0|mm |

I don’t think this could be related to calendar issue

@sdetweil I though I applied the fix in the past, although I’m not 100% sure.
But I don’t think the issue is ext3 related.

In my opinion sometimes default calendar don’t fetch the calendars, especially at the morning.
When it happen I don’t see any lines and a error message appear.
I don’t remember the message and now it’s working.
In the last one hour I tried to restart MM some times but now seems working, everything ok, no error message.
If it will appear, I’ll write it here

I’m using default calendar with calendarExt3
Actually I’m using 2 .ics, one for holidays and one for private, both are Google cals and sometimes module has fetching issues.
I can’t figure what the problem is because behaviour is strange.

These are the cases that happened to me, everytimes on startup:

• no default calendar events, no ext3 events
• default and ext3 shows only holiday events
• default shows nothing, ext3 shows some events

@sdetweil
Yes, I knew how CEC work, but in my case I have an LCD controller and I have check his behaviour.

Lucky me, when video signal is off, the controller stay in standby with a completely black screen.
This will be perfect, but only if the RemoteControl command will stop or cut-off the video signal, instead of sending a CEC turning off signal.
That was my doubt

@sdetweil So in your opinion my idea Home-Presence+RemoteControl+Scheduler could work?
Or should I have to throw it in the wastebin? :)