@sdetweil

“the pm2 app makes setup of ‘service’ like apps a lot easier”
I haven’t seen that Magic Mirror actually has a help page for that. --> https://docs.magicmirror.builders/configuration/autostart.html
I’ll be looking into that when I need to change the config again, at the moment my service file looks very similar to the one proposed in that link.
BTW, I looked past that autostart link that exists on the left side when opening the installation guide --> https://docs.magicmirror.builders/getting-started/installation.html
Maybe it would be good to add the reference to the autostart also to the bottom of the installation guide page?

“You could access the MagicMirror server from another browser anywhere , just change the address and IpWhitelist config options. Interesting in the module fails there too”
I could do that, probably by opening my MagicMirror to my whole home network (https://forum.magicmirror.builders/topic/9513/how-to-display-the-mirror-remotely/13?page=2). But I don’t understand what different information I can get from accessing the page from another client? The module still runs on the pi, doesn’t it? Thus, if the information cannot be retrieved somehow, I should also not see it with an external client?

best regards,
sletrabf

Hello,

It took me some time to answer//retry that because life was happening.

I have reinstalled the system and the Magic Mirror application:

• I have upgraded the system with an SSD and reinstalled the Raspberry OS based on Debian Trixie
• My version of Magic Mirror is now 2.37.0.
• Installed modules: MMM-DBF, MMM-DVB, MMM-ViewNotifications, MMM-BackgroundSlideShow
• The module MMM-DBF was modified by me. Most importantly, log messages were added, but I also fixed a small error regarding departure/arrival times --> https://pastebin.com/x7EJVzKg

Additionally, I’ve set up some things to make the configuration and the debugging easier:

• A service file to be able to start, stop, and restart Magic Mirror as a systemd service
• A graphical remote connection (VNC) to be able to access the Magic Mirror screen from my laptop

It didn’t take long until I have gotten the same error - at some point, the table doesn’t get reloaded. I logged in remotely and pressed CTRL + SHIFT + I. Apparently, the server could not be reached and the script cannot handle that.

Unfortunately, I was not able to see any other of the debug messages that were issued before (maybe they were deleted because a long time has elapsed). I’ll try to read the error closer after it occurs.

Best regards,
sletrabf

@KristjanESPERANTO:

I installed the module MMM-ViewNotifications and then I added several notifications to the file MMM-DBF.js, see: https://pastebin.com/YZEYgPpA

Now the outcome is as follows:
showApp: true,

• The message “MMM_DBF_LOADED” is not shown. From my understanding this means that start() is not being (fully) executed?
• The following messages are shown (in this order): MMM_DBF_GENERATING_URL, MMM_DBF_IFRAME_URL_GENERATED, MMM_DBF_ERROR_PROCESSING_DATA.

showApp: false,

• The message “MMM_DBF_LOADED” is not shown. From my understanding this means that start() is not being (fully) executed?
• Only the following message is shown: MMM_DBF_ERROR_PROCESSING_DATA

So, from my understanding, the error occurs here, possibly in the line await fetch (urlApi):

  async getData() {
    const self = this;
    const urlApi = `${this.generateUrl()}&mode=json&version=3`;
    const dataRequest = await fetch(urlApi);

    if (!dataRequest.ok) {
      // Show that the data request is being processed
      this.sendNotification("MMM_DBF_ERROR_PROCESSING_DATA", { message: '[MMM-DBF] Data processing returned an error.'});
      let message = `An error has occurred: ${dataRequest.status}`;
      if (dataRequest.status === 300) {
        message += " - Ambiguous station name.";
      }
      throw new Error(message);
    }
    else {
      const data = await dataRequest.json();
      // Show that the data request is being processed
      this.sendNotification("MMM_DBF_START_PROCESSING_DATA", { message: '[MMM-DBF] Data processing started.'});
      self.processData(data);
    }
    self.scheduleUpdate(self.config.retryDelay);
  },

I’m somehow not able to see the actual error that happened. Could you maybe please point out where I have to look for the value of dataRequest.status?

Thanks in advance!
Best regards,
sletrabf

@KristjanESPERANTO said in MMM-DBF does not work, no error messages:

showApp: false,

disabled: true, is the option setting to disable modules. Where did you find showApp?

I did use the setting disabled: true, to disable the other modules (as explained here). The setting showApp: false, tells MMM-DBF to not load the table in the iFrame but generate a HTML table from the loaded information. showApp: true, works whereas showApp: false, does not.

So it works without the other modules and doesn’t work when you activate the other modules? Can you figure out with which module it stops working?

No, disabling the other modules doesn’t change anything.

Is there any way to enable a (verbose) logging output to show what this module does?

Seem that this module doesn’t have debug outputs. Only errors you could see in the browser console.

OK, I’ll try to see something there!

@KristjanESPERANTO

OK, I temporarily disabled all other modules following this advice here except for MMM-DBF.

With

showApp: false,

I now get a black (blank) screen; with “true” it is showing the timetable app but nothing else (as expected).

Is there any way to enable a (verbose) logging output to show what this module does?

@KristjanESPERANTO

The same appears with app mode and table mode:

[2025-05-18 15:53:57.429] [INFO]  System information:
### SYSTEM:   manufacturer: Raspberry Pi Foundation; model: Raspberry Pi 4 Model B Rev 1.1; virtual: false
### OS:       platform: linux; distro: Debian GNU/Linux; release: 12; arch: arm64; kernel: 6.12.25+rpt-rpi-v8
### VERSIONS: electron: 35.1.2; used node: 22.15.1; installed node: 22.15.1; npm: 10.9.2; pm2: 5.4.3
### OTHER:    timeZone: Europe/Berlin; ELECTRON_ENABLE_GPU: undefined 
[2025-05-18 15:53:59.735] [INFO]  updatenotification: Updater Class Loaded! 
[2025-05-18 15:53:59.737] [INFO]  updatenotification: Checking PM2 using... 
[2025-05-18 15:53:59.743] [INFO]  updatenotification: [PM2] You are not using pm2 

I could try more different things, also reinstall the whole MM if needed :)
best regards,
Felix

@ArtificialAI Hello! I hope I can give you a hint although I don’t use the module ^^
I just noticed that you use different units for the same conversion and it looks a little weird for me. Maybe you can mention in what unit the value data.capacity.disks.free can be read out?

In the example entry in your config.js you have TB:

formatter: "(data) => (data.capacity.disks.free / 1024 / 1024).toFixed(2) + ' TB'",

In your formatter examples you have GB:

(d) => (d.capacity.disks.free / 1024 / 1024).toFixed(1) + ' GB'

Best regards,
sletrabf

Hi!

@sdetweil - I referred to that topic, I only opened a new one because the forum recommended me to do so and include the reference…

@KristjanESPERANTO - Thanks for the effort to remind Helpi90 :)

The software actually also notified me about the updates. I pulled the updates and ran npm install afterwards. The update message is gone so I think it has worked.

Now I’m… still not getting any timetable entries when using the table mode. I now also tried to use the app mode instead. That works fine (just doesn’t look as good).

My entry in the config.js is as follows:

{
    module: 'MMM-DBF',
    position: 'bottom_bar',
    config: {
        showApp: false,
        station: "Dresden Mitte",
        updateInterval: 60000, // 60 s
        // App configuration
        height:"600px",
        width:"960px",
        // Table configuration
        timeOption: "time",
        showDelayMsg: true,
        setTableWidth: "960px",
        numberOfResults: 10,
    }
},

I’m using also MMM-BackgroundSlideShow. On its installation page it is recommended to add the following to the custom.css “to make the text a little brighter” (and I did that). Maybe it has such consequences? (As I mentioned I’m quite the noob regarding MagicMirror and node.js…)

.normal,
.dimmed,
header,
body {
  color: #fff;
}

Also, maybe it is important - when I start up MagicMirror, it gives the following error messages:

[4016:0517/200920.270717:ERROR:gbm_wrapper.cc(79)] Failed to get fd for plane.: Datei oder Verzeichnis nicht gefunden (2)
[4016:0517/200920.274895:ERROR:gbm_wrapper.cc(261)] Failed to export buffer to dma_buf: Datei oder Verzeichnis nicht gefunden (2)

Datei oder Verzeichnis nicht gefunden --> file or folder not found

Thanks in advance for your help!
Best regards,
sletrabf

Hello,
I’m opening a new topic based on this one: MMM-DBF suddenly does not work

I also have the problem that the plugin MMM-DBF does not work. It did work some days, but now the position where it should show the departures is just empty. I tried “Dresden Mitte” first and switched to “DM” after it had stopped working for the first time. The station ID “DM” worked again for several days and then stopped working again.

I initially used the module under https://github.com/Helpi90/MMM-DBF and then switched to https://github.com/babajones99/MMM-DBF; this unfortunately didn’t change anything.

I’m quite a newbie regarding the MMM modules, but I can handle a terminal. Unfortunately I didn’t find any log file or something which can give a hint on the error. Is there any possibility to obtain more information about the error?

Thanks in advance.
Best regards,
sletrabf