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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    Black screen after MM v2.4.0 update.

    Scheduled Pinned Locked Moved Unsolved Troubleshooting
    32 Posts 17 Posters 18.9k Views 17 Watching
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    • KimzerK Offline
      Kimzer
      last edited by

      Anyone else struggling with using MMM-Pir-Sensor after the new update?

      T 1 Reply Last reply Reply Quote 0
      • T Offline
        thenameiwantedwastaken @Kimzer
        last edited by

        Yes, I am having the same black screen. I have to disable PIR to be able to use MM at all. I also noted that after I installed PIR I could no longer SSH into the Pi from my desktop computer, whereas I could from my mobile phone. Anyway, the black screen is the main concern right now. I’ll post if I discover anything helpful.

        1 Reply Last reply Reply Quote 0
        • G Offline
          grantc66
          last edited by grantc66

          Not sure if I’m having the same issue, stupidly updated electron as npm was claiming 1.7.13 had a critical vulnerability (after installing MMM-voice) Then got the backscreen issue. rolled back electron to 1.7.13 & the issue persists.

          Node v9.11.1
          npm 6.1.0

          Thought I’d uploaded the log file but not sure if others can see it. That snippet below is the first error after ALL_MODULES_STARTED

          13:01:19.440 main.js:40 Uncaught TypeError: Cannot read property ‘appendChild’ of undefined
          at main.js:40
          at Array.forEach ()
          at createDomObjects (main.js:24)
          at Object.modulesStarted (main.js:471)
          at startModules (loader.js:59)
          at loader.js:40
          at HTMLLinkElement.stylesheet.onload (loader.js:203)
          (anonymous) @ main.js:40
          createDomObjects @ main.js:24
          modulesStarted @ main.js:471
          startModules @ loader.js:59
          (anonymous) @ loader.js:40
          stylesheet.onload @ loader.js:203

          13:01:20.056 TypeError: Cannot read property ‘getElementsByClassName’ of null
          at moduleNeedsUpdate (main.js:176)
          at main.js:144
          at Promise ()
          at updateDomWithContent (main.js:137)
          at main.js:119
          at
          Promise rejected (async)
          (anonymous) @ main.js:121
          Promise resolved (async)
          (anonymous) @ main.js:118
          updateDom @ main.js:109
          updateDom @ main.js:514
          updateDom @ module.js:358

          Any pointers as to how to get it working again? It was working perfectly before MMM-voice & buggering around with electron.
          Tried a fresh install with the same result :(

          1 Reply Last reply Reply Quote 0
          • S Offline
            shane1234
            last edited by shane1234

            I’m also having the black screen of death. I tried both overlay options, and I tried commenting it out alltogether. I also ran the 2.4.1 update, but still getting black screen. Runs normally with the new update though when I comment out the PIR module in the config.js file.

            S 1 Reply Last reply Reply Quote 0
            • S Offline
              sdetweil @shane1234
              last edited by

              @shane1234 if u have the PIR module loaded, and do ctrl-shift-i (lower case letter i), it will open the debug env, and then select the console tab… do you see any errors?

              also, if u start from a terminal window, alt-spacebar, n will minimze the mirror screen so you can see the terminal window node_helper outputs… anything there?

              usually a module.js error kills with MM screen…

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              1 Reply Last reply Reply Quote 0
              • S Offline
                Sun
                last edited by

                Mine after upgrade it’s freezing when trying to run magicmirror. Also try both kms driver and fake kms driver.

                1 Reply Last reply Reply Quote 0
                • D Offline
                  Dom1n1c
                  last edited by

                  mine is also freezing after the update.
                  No difference if i connect via vnc or using the monitor.

                  The only thing that does work, is opening the mirror in another browser (http://magicmirror:8080)

                  1 Reply Last reply Reply Quote 0
                  • KimzerK Offline
                    Kimzer
                    last edited by

                    Is there a different way to turn the screen on/off with the fake kms driver maybe? :s

                    KimzerK 1 Reply Last reply Reply Quote 0
                    • KimzerK Offline
                      Kimzer @Kimzer
                      last edited by

                      @kimzer replying to myself. I just had to chmod the new pir script i made to make it work duhhh. :p

                      1 Reply Last reply Reply Quote 1
                      • B Offline
                        bwente @joela85
                        last edited by

                        @joela85
                        Are you using MMM-PIR-Sensor?
                        https://github.com/paviro/MMM-PIR-Sensor/issues/49

                        I needed to delete the node_modules directory first. Then I ran npm install and the issue was gone.

                        joela85J 1 Reply Last reply Reply Quote 0
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