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

    Black screen after some hours

    Scheduled Pinned Locked Moved Unsolved Troubleshooting
    19 Posts 11 Posters 7.5k Views
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    • idoodlerI
      idoodler Module Developer @fidst
      last edited by

      @fidst Try to execute pm2 log mm. This will give you the log of the MacigMirror Instance. Post the log here if the black screen occures. (You may check for any sensible information from other modules)

      1 Reply Last reply Reply Quote 1
      • O
        onkelbobby
        last edited by

        Hi all,

        I’m facing exactly the same problem on my RPi3. The screen is all black and shows only the mouse arrow. I can access the MMM-RemoteControl from a separate notebook or mobile and it is possible to remotely restart the MM software to bring everything back to normal.
        With a connect mouse you can move the mouse pointer but still there is a black screen. below please find the result after typing pm2 log mm

        /home/pi/.pm2/logs/mm-error-0.log last 15 lines:
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | fatal: unable to access 'https://github.com/jclarke0000/MMM-MyWeather.git/': Operation timed out after 300010 milliseconds with 0 out of 0 bytes received
0|mm       | 
0|mm       | fatal: unable to access 'https://github.com/raywo/MMM-PublicTransportHafas.git/': Operation timed out after 300039 milliseconds with 0 out of 0 bytes received
0|mm       | 

0|mm       | Whoops! There was an uncaught exception...
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm       | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm       | Whoops! There was an uncaught exception...
0|mm       | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm       | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | Whoops! There was an uncaught exception...
0|mm       | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm       | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | Whoops! There was an uncaught exception...
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm       | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm       | Whoops! There was an uncaught exception...
0|mm       | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm       | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | Whoops! There was an uncaught exception...
0|mm       | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm       | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
0|mm       | Whoops! There was an uncaught exception...
0|mm       | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm       | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm       | TypeError: Cannot read property 'hash' of null
0|mm       |     at /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:68:31
0|mm       |     at Git. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1482:10)
0|mm       |     at done (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1354:21)
0|mm       |     at ChildProcess. (/home/pi/MagicMirror/node_modules/simple-git/src/git.js:1379:16)
0|mm       |     at emitTwo (events.js:106:13)
0|mm       |     at ChildProcess.emit (events.js:191:7)
0|mm       |     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)

        in the log is written… Maybe no Internet connection? but this is definitely not true…

        Anybody an idea why this happens?

        1 Reply Last reply Reply Quote 1
        • V
          Voteax
          last edited by

          Same Problem here. New MagicMirror Setup with a Raspberry Pi 2 and USB-Wifi.
          The Error Message is similar. It seems to lost the Internet Connection and the screen goes blank/black.
          No Solution so far.

          1 Reply Last reply Reply Quote 1
          • P
            prysme01
            last edited by

            Same behavior on RPI3, black screen after few hours, I’ve tried almost all version of electron described on the linked thread, no workaround found.

            1 Reply Last reply Reply Quote 1
            • R
              rak
              last edited by

              Same here. I turned down the updatenotification module. See if this helps. Will keep you posted.

              R 1 Reply Last reply Reply Quote 0
              • R
                rak @rak
                last edited by

                3rd day. No black screen anymore. I think we identified the root cause.

                O 1 Reply Last reply Reply Quote 0
                • O
                  onkelbobby @rak
                  last edited by

                  @rak
                  I’ll give it a try and remove the update module. But it will take some more days since I’m traveling over the weekend…

                  1 Reply Last reply Reply Quote 0
                  • P
                    prysme01
                    last edited by

                    I’ve already disabled the update notification module, nothing has changed.

                    1 Reply Last reply Reply Quote 0
                    • R
                      rak
                      last edited by

                      For me it runs stable since removing the update module.

                      O 1 Reply Last reply Reply Quote 0
                      • O
                        onkelbobby @rak
                        last edited by

                        I updated our mirror to 2.4.1 about 2 weeks ago… since the new software is running we don’t see black screen anymore…

                        1 Reply Last reply Reply Quote 0
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