Electron screen becomes blank after a period of time

sdetweil

@DDE12 yes, if the right code crashes, then dev window will die

sometime npm start dev will allow you to see the error before it dies…

MMRIZE

Check whether some modules make unhandled exception error when it create DOM.

[CX3] Module is not prepared yet, wait a while.
getDom @ MMM-CalendarExt3Agenda.js:193

[CX3] Module is not prepared yet, wait a while.
getDom @ MMM-CalendarExt3.js:228

This message might imply some other module fails to create DOM at its start. (I’ll fix the CX3* modules not so strict to other module’s failure soon.)

By the way, It would be better;

Remove all modules from config
Then add one by one unless you meet the problem.

DDE12

@MMRIZE I updated MMCalendarExt3* and am not getting those messages. Thank you! I have done the troubleshooting you recommended and have discovered that it is MMM-Wallpaper when set to display NASA’s Astronomy Picture of the Day. The black screen does not occur when I set the wallpaper to Met Museum or Firetv. Should I start a new post on troubleshooting MMM-Wallpaper?

sdetweil

@DDE12 yes, start a new topic, but it’s probably a picture format or size problem

I don’t know if wallpaper has anyvdebugging/logging

karsten13

@sdetweil

I suspect it’s a problem of the pi, not enough memory …

miabaker

Hi, I have the same issue of electron screen becoming blank. I have tried some solutions but none worked. I have added a line of code in my main.js file that reloads the window every 10 minutes. This prevents the screen from going blank. Here is the code snippet:

// Create a new BrowserWindow instance
let win = new BrowserWindow(options);

// Load the index.html file
win.loadFile('index.html');

// Reload the window every 10 minutes
setInterval(() => {
  win.reload();
}, 600000);

I hope this helps you keep your magic mirror running.

Regards, Mia from CodeIT

sdetweil

@miabaker so, you should find the module that’s failing and fix that.

DDE12

@karsten13 You might have something there. I changed the source in MMM-Wallpaper from the HD NASA to regular NASA and it took several hours or more for it to go blank. I have had the same problem with other modules as well that seem to resolve when I make the update interval longer. I’ve stopped using the MMM-Wallpaper at this point but I’m hoping there is some further troubleshooting to identify if the Pi is the problem and explore for a solution.

BKeyport

@DDE12 I’d suspect both of those modules aren’t handling server difficulties well from NASA…

sdetweil

@BKeyport also, there have been image size issues as well. many of the NASA images are huge