RPI 3B keeps going to blank screen (cursor showing)

[sdetweil]

@BigTJ show the messages from where u start MagicMirror at the time of the failure

[karsten13]

@BigTJ

which modules have you installed?

[BigTJ]

@sdetweil Hi, the messages of note from starting MM are as below

setterm: terminal xterm-256color does not support --blank
pi@raspberrypi:~ $ cd MagicMirror
pi@raspberrypi:~/MagicMirror $ npm start run

magicmirror@2.18.0 start
DISPLAY=“${DISPLAY:=:0}” ./node_modules/.bin/electron js/electron.js “run”

[24.08.2022 18:40.30.154] [LOG] Starting MagicMirror: v2.18.0
[24.08.2022 18:40.30.166] [LOG] Loading config …
[24.08.2022 18:40.30.198] [LOG] Loading module helpers …
[24.08.2022 18:40.30.206] [LOG] No helper found for module: alert.
[24.08.2022 18:40.31.907] [LOG] Initializing new module helper …
[24.08.2022 18:40.31.911] [LOG] Module helper loaded: MMM-Wallpaper
[24.08.2022 18:40.31.917] [LOG] No helper found for module: clock.
[24.08.2022 18:40.31.922] [LOG] No helper found for module: calendar_monthly.
[24.08.2022 18:40.32.330] [LOG] Initializing new module helper …
[24.08.2022 18:40.32.332] [LOG] Module helper loaded: calendar
[24.08.2022 18:40.32.336] [LOG] No helper found for module: weather.
[24.08.2022 18:40.32.341] [LOG] No helper found for module: MMM-WiFiPassword.
[24.08.2022 18:40.32.421] [LOG] Initializing new module helper …
[24.08.2022 18:40.32.422] [LOG] Module helper loaded: newsfeed
[24.08.2022 18:40.32.425] [LOG] All module helpers loaded.
[24.08.2022 18:40.32.697] [LOG] Starting server on port 8080 …
[24.08.2022 18:40.32.740] [LOG] Server started …
[24.08.2022 18:40.32.743] [LOG] Connecting socket for: MMM-Wallpaper
[24.08.2022 18:40.32.745] [LOG] Starting node helper for: MMM-Wallpaper
[24.08.2022 18:40.32.746] [LOG] Connecting socket for: calendar
[24.08.2022 18:40.32.748] [LOG] Starting node helper for: calendar
[24.08.2022 18:40.32.749] [LOG] Connecting socket for: newsfeed
[24.08.2022 18:40.32.750] [LOG] Starting node helper for: newsfeed
[24.08.2022 18:40.32.751] [LOG] Sockets connected & modules started …
[24.08.2022 18:40.33.378] [LOG] Launching application.
[24055:0824/184036.476041:ERROR:viz_main_impl.cc(161)] Exiting GPU process due to errors during initialization
[24096:0824/184036.932766:ERROR:sandbox_linux.cc(376)] InitializeSandbox() called with multiple threads in process gpu-process.
[24.08.2022 18:40.40.506] [LOG] Create new calendarfetcher for url: https://calendar.google.com/calendar/ical/*********gmail.com/private-*********/basic.ics - Interval: 3000000
[24.08.2022 18:40.40.693] [LOG] Create new calendarfetcher for url: https://calendar.google.com/calendar/ical/*********gmail.com/private-*********/basic.ics - Interval: 3000000
[24.08.2022 18:40.40.703] [LOG] Create new newsfetcher for url: http://feeds.bbci.co.uk/news/uk/rss.xml - Interval: 300000

[24.08.2022 23:05.55.239] [INFO] Newsfeed-Fetcher: Broadcasting 38 items.
[24067:0824/230903.755884:ERROR:broker_posix.cc(46)] Received unexpected number of handles
[24.08.2022 23:10.55.583] [INFO] Newsfeed-Fetcher: Broadcasting 38 items.

I don’t know exactly when the black screen occurred.
Hope this helps

Thanks BigTJ

[BigTJ]

@karsten13 The modules of the MM are listed below in shortened form. Thanks for your interest.

“alert”
“updatenotification”
“MMM-Wallpaper”
“clock”
“calendar_monthly”
“calendar”
header: “Steve’s Upcoming Items”
“MMM-GoogleSheets”
“calendar”
— header: “Angela’s Upcoming Items”
“weather”
— position: “top_left”
— header: "Currently: "
— location: “Doncaster”
“weather”,
— position: “top_left”
— header: “Forecast”
— location: “Doncaster”
“weather”,
— position: “top_left”
— header: “Forecast”
— location: “Pickering”
‘MMM-WiFiPassword’
“newsfeed”

[karsten13]

@BigTJ

I asked because I had problems with some modules which needed to much memory which results also in a black screen with white cursor.

You could try to run without the 3 foreign modules to see if the problem persists.

[BigTJ]

@karsten13

I have another MM running on a Pi 4B that uses all the same modules without a problem.

But I will give your suggestion a try. Thanks for the tip

Big TJ

[BigTJ]

@sdetweil Hi,
Were the displayed messages of any help in narrowing down the issue?

BigTj

[sdetweil]

@BigTJ said in RPI 3B keeps going to blank screen (cursor showing):

4067:0824/230903.755884:ERROR:broker_posix.cc(46)] Received unexpected number of handles

this is the error

we don’t really know the cause.
u can try disabling the use of gpu

change package.json line to look like this

		"start": "DISPLAY=\"${DISPLAY:=:0}\" ./node_modules/.bin/electron --disable-gpu js/electron.js",

[BigTJ]

@sdetweil Thanks for the suggestion.

I’ll give it a go and let you know if it is successful.

BigTJ

[BigTJ]

@sdetweil Hi, I have changed the line as your suggestion.
The mirror screen is still going blank after a short random period of time.

I have installed the ‘example’ mirror as per your suggestion to a previous query. The mirror works OK and (appears) not to go to black screen. Currently I am commenting out each module in config.js to try to identify if it is a particular module that is causing the problem.

My original set up uses the Calendar module twice (for 2 different users). Is this a possible cause of the problem? ie do I need to have independent modules one per user?

The following lines occur each time I start the mirror. Could this be relevant to my problem?

“[24055:0824/184036.476041:ERROR:viz_main_impl.cc(161)] Exiting GPU process due to errors during initialization
[24096:0824/184036.932766:ERROR:sandbox_linux.cc(376)] InitializeSandbox() called with multiple threads in process gpu-process.”

Thanks