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

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

Scheduled Pinned Locked Moved Solved Troubleshooting
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  • B Offline
    BigTJ @BigTJ
    last edited by Oct 2, 2022, 3:50 PM

    @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

    S 1 Reply Last reply Oct 2, 2022, 4:42 PM Reply Quote 0
    • S Away
      sdetweil @BigTJ
      last edited by Oct 2, 2022, 4:42 PM

      @BigTJ if u did --disable-gpu, then u shouldnt be getting those messages

      u can use all the default modules multiple times

      when the screen goes black, does the mouse work? does it wake up?

      Sam

      How to add modules

      learning how to use browser developers window for css changes

      B 1 Reply Last reply Oct 11, 2022, 10:48 AM Reply Quote 0
      • B Offline
        BigTJ @sdetweil
        last edited by Oct 11, 2022, 10:48 AM

        @sdetweil Thanks for the response

        I amended the package.json as follows;-

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

        Is this correct?

        Yes the mouse still works. Cursor is a black arrow with a white outline. No it does wake up.
        Control M works
        Control R Works
        Control Q works

        The start up report of the mirror with minimal content shows;-

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

        [11.10.2022 11:45.29.988] [LOG] Starting MagicMirror: v2.18.0
        [11.10.2022 11:45.30.003] [LOG] Loading config …
        [11.10.2022 11:45.30.030] [LOG] Loading module helpers …
        [11.10.2022 11:45.31.926] [LOG] Initializing new module helper …
        [11.10.2022 11:45.31.930] [LOG] Module helper loaded: MMM-Wallpaper
        [11.10.2022 11:45.31.935] [LOG] No helper found for module: weather.
        [11.10.2022 11:45.31.936] [LOG] All module helpers loaded.
        [11.10.2022 11:45.32.214] [LOG] Starting server on port 8080 …
        [11.10.2022 11:45.32.258] [LOG] Server started …
        [11.10.2022 11:45.32.261] [LOG] Connecting socket for: MMM-Wallpaper
        [11.10.2022 11:45.32.268] [LOG] Starting node helper for: MMM-Wallpaper
        [11.10.2022 11:45.32.270] [LOG] Sockets connected & modules started …
        [11.10.2022 11:45.32.942] [LOG] Launching application.
        [6000:1011/114533.695740:ERROR:sandbox_linux.cc(376)] InitializeSandbox() called with multiple threads in process gpu-process.

        Any further ideas?

        Thanks for your continued assistance

        1 Reply Last reply Reply Quote 0
        • B Offline
          BigTJ
          last edited by Oct 23, 2022, 10:41 AM

          @sdetweil
          Hi,
          Did you have any further thoughts on this problem?

          S 1 Reply Last reply Oct 23, 2022, 11:33 AM Reply Quote 0
          • S Away
            sdetweil @BigTJ
            last edited by sdetweil Oct 23, 2022, 11:34 AM Oct 23, 2022, 11:33 AM

            @BigTJ no. not really. 2.18 is fairly old and we have upgraded electron in each of the last releases

            I would use my upgrade script, see
            https://github.com/sdetweil/MagicMirror_scripts

            it will complain about package.json as we made the disable-gpu change

            so restore it first, before running the upgrade

            cd ~/MagicMirror 
            git checkout package.json
            

            there is a new way to disable gpu use without editing that package.json file

            edit the ~/MagicMirror/installers/mm.sh

            and add

            export ELECTRON_DISABLE_GPU
            

            before the npm start line

            Sam

            How to add modules

            learning how to use browser developers window for css changes

            B B 2 Replies Last reply Oct 25, 2022, 10:25 PM Reply Quote 0
            • B Offline
              BigTJ @sdetweil
              last edited by Oct 25, 2022, 10:25 PM

              @sdetweil
              I’ll give that a go in the next few days.
              Thanks

              1 Reply Last reply Reply Quote 0
              • B Offline
                BKeyport Module Developer @sdetweil
                last edited by Oct 25, 2022, 11:02 PM

                @sdetweil Course, now begs the question… “What if there’s no npm start line?”

                run-start.sh is used. :)

                The "E" in "Javascript" stands for "Easy"

                S 1 Reply Last reply Oct 26, 2022, 12:00 AM Reply Quote 0
                • S Away
                  sdetweil @BKeyport
                  last edited by Oct 26, 2022, 12:00 AM

                  @BKeyport do it the same. run-start does npm run server

                  but at that point, there is no electron…

                  Sam

                  How to add modules

                  learning how to use browser developers window for css changes

                  B 1 Reply Last reply Nov 28, 2022, 5:19 PM Reply Quote 0
                  • B Offline
                    BigTJ @sdetweil
                    last edited by Nov 28, 2022, 5:19 PM

                    @sdetweil
                    Thanks for all your efforts and assistance. After many reloads of the OS and the MM software I still have the same issue. After searching for similar Pi problems outside of MM it appears that this can happen due to hardware failure. I am now going to purchase a new pi and start from the beginning. Will report back on success or failure in due course. Thanks to everyone that has offered help and assistance.

                    BigTJ

                    C 1 Reply Last reply Dec 16, 2022, 7:52 PM Reply Quote 0
                    • C Offline
                      costascontis @BigTJ
                      last edited by Dec 16, 2022, 7:52 PM

                      i have the same “problem” i think…New installation mirror works just fine for hours or even a day or two,then black screen with cursor.No network,so i cant restart it properly.I did disable gpu so no error massage anymore and i did the " npm init -y" thing inside every module folder.No solution yet…

                      1 Reply Last reply Reply Quote 0
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