@sdetweil I did not notice the 2 ks. That was the problem!

@sdetweil Thank you that fixed the issue.

@sdetweil Thank you that fixed the issue.

I tried to upgrade MagicMirror earlier but then MagicMirror would not load. No black screen, just never opening. So I did a fresh install of Raspberry Pi OS and Magic Mirror.
I am using a Raspberry Pi 4 with Raspberry Pi OS 64-bit. Everything was working so I went ahead and installed some modules and copied over my config and CSS files. Now it won’t load again. I have tried using pm2 start mm.sh (I set up the mm.sh as per the MM documentation). I have also tried pm2 start mm.sh. Terminal gives my no errors, it looks like MM is loading, but MagicMirror doesn’t load.

My pm2 mm-error log file has this message:

[02.12.2023 18:33.47.262] [ERROR] (node:1232) UnhandledPromiseRejectionWarning: Error: Cannot find module 'node-fetch'
Require stack:
- /home/pi/MagicMirror/modules/MMM-OneTracker/node_helper.js
- /home/pi/MagicMirror/js/app.js
- /home/pi/MagicMirror/js/electron.js
- /home/pi/MagicMirror/node_modules/electron/dist/resources/default_app.asar/main.js
- 
    at node:internal/modules/cjs/loader:1084:15
    at Function.<anonymous> (node:electron/js2c/browser_init:2:117419)
    at Module._resolveFilename (/home/pi/MagicMirror/node_modules/module-alias/index.js:49:29)
    at node:internal/modules/cjs/loader:929:27
    at Function._load (node:electron/js2c/asar_bundle:2:13327)
    at Module.require (node:internal/modules/cjs/loader:1150:19)
    at require (node:internal/modules/cjs/helpers:110:18)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/MMM-OneTracker/node_helper.js:10:15)
    at Module._compile (node:internal/modules/cjs/loader:1271:14)
    at Object..js (node:internal/modules/cjs/loader:1326:10)
    at Module.load (node:internal/modules/cjs/loader:1126:32)
    at node:internal/modules/cjs/loader:967:12
    at Function._load (node:electron/js2c/asar_bundle:2:13327)
    at Module.require (node:internal/modules/cjs/loader:1150:19)
    at require (node:internal/modules/cjs/helpers:110:18)
    at loadModule (/home/pi/MagicMirror/js/app.js:180:19)
    at loadModules (/home/pi/MagicMirror/js/app.js:210:10)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async App.start (/home/pi/MagicMirror/js/app.js:258:3)
(Use `electron --trace-warnings ...` to show where the warning was created)
[02.12.2023 18:33.47.264] [ERROR] (node:1232) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
[1947:1202/183350.594642:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.595113:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.595532:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.595918:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.596287:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.610727:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.611149:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.613660:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.622792:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.623222:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.623582:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.623993:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.624373:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)
[1947:1202/183350.624748:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)

If I run pm2 info mm I get this info

 Describing process with id 0 - name mm
┌───────────────────┬─────────────────────────────────┐
│ status            │ online                          │
│ name              │ mm                              │
│ namespace         │ default                         │
│ version           │ N/A                             │
│ restarts          │ 0                               │
│ uptime            │ 7m                              │
│ script path       │ /home/pi/mm.sh                  │
│ script args       │ N/A                             │
│ error log path    │ /home/pi/.pm2/logs/mm-error.log │
│ out log path      │ /home/pi/.pm2/logs/mm-out.log   │
│ pid path          │ /home/pi/.pm2/pids/mm-0.pid     │
│ interpreter       │ bash                            │
│ interpreter args  │ N/A                             │
│ script id         │ 0                               │
│ exec cwd          │ /home/pi                        │
│ exec mode         │ fork_mode                       │
│ node.js version   │ N/A                             │
│ node env          │ N/A                             │
│ watch & reload    │ ✘                               │
│ unstable restarts │ 0                               │
│ created at        │ 2023-12-02T23:30:45.763Z        │
└───────────────────┴─────────────────────────────────┘
 Divergent env variables from local env
┌────────────────┬──────────────────────┐
│ SSH_CONNECTION │ 10.0.0.79 52375 10.0 │
│ SSH_CLIENT     │ 10.0.0.79 52375 22   │
└────────────────┴──────────────────────┘

 Add your own code metrics: http://bit.ly/code-metrics
 Use `pm2 logs mm [--lines 1000]` to display logs
 Use `pm2 env 0` to display environment variables
 Use `pm2 monit` to monitor CPU and Memory usage mm

I am not sure what to do to fix this. I have been trying to figure it out for over 6 hours and have no answers. Any help is appreciated.

Ok I am going to try a new install on my raspberry pi 4, instead of the 3B I have been using.

I think it’s a GPU issue. Could it have been a bad install of the os? Should I reinstall?

@sdetweil I am running the 32 bit raspi os. I used the official raspberry pi imager to create it.

I have been getting the following error mm-error.log:

[12.08.2022 22:50.16.819] [WARN]  You're using a full whitelist configuration to allow for all IPs
[1707:0812/225020.891765:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1749:0812/225021.867756:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1768:0812/225022.360451:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported.
/home/pi/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT
[12.08.2022 23:24.59.722] [WARN]  You're using a full whitelist configuration to allow for all IPs
[1686:0812/232504.792579:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1735:0812/232505.286195:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported.
[12.08.2022 23:46.19.653] [WARN]  You're using a full whitelist configuration to allow for all IPs
[1623:0812/234649.995261:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1766:0812/234650.598873:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported.

@sdetweil I think when I tried to install mmpm that it didn’t install correctly. I did it again and everything seems fine except I still have a black screen. But somehow in the web using the ip address it loads fine. Why would I get a black screen on the pi but everything working on the web? I even made a change to make sure it wasn’t cached and the change showed up so it’s new.

I did a clean install of mm, added my modules, copied the saved config from the previous install to the new install. Everything looked fine, then I rebooted and now I again have a black screen!!!

The npm log says:

 verbose cli /usr/bin/node /usr/bin/npm
1 info using npm@8.11.0
2 info using node@v16.16.0
3 timing npm:load:whichnode Completed in 2ms
4 timing config:load:defaults Completed in 12ms
5 timing config:load:file:/usr/lib/node_modules/npm/npmrc Completed in 7ms
6 timing config:load:builtin Completed in 9ms
7 timing config:load:cli Completed in 9ms
8 timing config:load:env Completed in 3ms
9 timing config:load:file:/home/pi/MagicMirror/.npmrc Completed in 0ms
10 timing config:load:project Completed in 26ms
11 timing config:load:file:/home/pi/.npmrc Completed in 0ms
12 timing config:load:user Completed in 3ms
13 timing config:load:file:/usr/etc/npmrc Completed in 1ms
14 timing config:load:global Completed in 2ms
15 timing config:load:validate Completed in 2ms
16 timing config:load:credentials Completed in 19ms
17 timing config:load:setEnvs Completed in 7ms
18 timing config:load Completed in 96ms
19 timing npm:load:configload Completed in 97ms
20 timing npm:load:mkdirpcache Completed in 5ms
21 timing npm:load:mkdirplogs Completed in 5ms
22 verbose title npm start
23 verbose argv "start"
24 timing npm:load:setTitle Completed in 6ms
25 timing config:load:flatten Completed in 18ms
26 timing npm:load:display Completed in 23ms
27 verbose logfile logs-max:10 dir:/home/pi/.npm/_logs
28 verbose logfile /home/pi/.npm/_logs/2022-08-13T00_05_23_038Z-debug-0.log
29 timing npm:load:logFile Completed in 36ms
30 timing npm:load:timers Completed in 1ms
31 timing npm:load:configScope Completed in 1ms
32 timing npm:load Completed in 182ms
33 silly logfile start cleaning logs, removing 1 files
34 silly logfile done cleaning log files

The pm2 error log says:

[8711:0812/191224.893179:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[8764:0812/191225.738183:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported.
[8716:0812/191225.822559:ERROR:command_buffer_proxy_impl.cc(126)] ContextResult::kTransientFailure: Failed to send GpuControl.CreateCommandBuffer.
[1644:0812/194324.158131:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1694:0812/194325.043000:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1718:0812/194325.555134:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported.
[1672:0812/194325.644795:ERROR:command_buffer_proxy_impl.cc(126)] ContextResult::kTransientFailure: Failed to send GpuControl.CreateCommandBuffer.
[12.08.2022 19:54.36.872] [ERROR] WARNING! Could not load config file. Starting with default configuration. Error found: Error: Cannot find module 'async'
Require stack:
- /home/pi/MagicMirror/modules/MMM-Tools/node_helper.js
- /home/pi/MagicMirror/js/app.js
- /home/pi/MagicMirror/js/electron.js
- /home/pi/MagicMirror/node_modules/electron/dist/resources/default_app.asar/main.js
- 
[12.08.2022 19:54.36.913] [ERROR] App threw an error during load
[12.08.2022 19:54.36.926] [ERROR] Error: Cannot find module 'async'
Require stack:
- /home/pi/MagicMirror/modules/MMM-Tools/node_helper.js
- /home/pi/MagicMirror/js/app.js
- /home/pi/MagicMirror/js/electron.js
- /home/pi/MagicMirror/node_modules/electron/dist/resources/default_app.asar/main.js
- 
    at Module._resolveFilename (node:internal/modules/cjs/loader:940:15)
    at n._resolveFilename (node:electron/js2c/browser_init:245:1105)
    at Module._resolveFilename (/home/pi/MagicMirror/node_modules/module-alias/index.js:49:29)
    at Module._load (node:internal/modules/cjs/loader:785:27)
    at c._load (node:electron/js2c/asar_bundle:5:13343)
    at Module.require (node:internal/modules/cjs/loader:1012:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/MMM-Tools/node_helper.js:6:13)
    at Module._compile (node:internal/modules/cjs/loader:1118:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1173:10)
[12.08.2022 19:54.36.929] [ERROR] Whoops! There was an uncaught exception...
[12.08.2022 19:54.36.978] [ERROR] Error: Cannot find module 'async'
Require stack:
- /home/pi/MagicMirror/modules/MMM-Tools/node_helper.js
- /home/pi/MagicMirror/js/app.js
- /home/pi/MagicMirror/js/electron.js
- /home/pi/MagicMirror/node_modules/electron/dist/resources/default_app.asar/main.js
- 
    at Module._resolveFilename (node:internal/modules/cjs/loader:940:15)
    at n._resolveFilename (node:electron/js2c/browser_init:245:1105)
    at Module._resolveFilename (/home/pi/MagicMirror/node_modules/module-alias/index.js:49:29)
    at Module._load (node:internal/modules/cjs/loader:785:27)
    at c._load (node:electron/js2c/asar_bundle:5:13343)
    at Module.require (node:internal/modules/cjs/loader:1012:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/MMM-Tools/node_helper.js:6:13)
    at Module._compile (node:internal/modules/cjs/loader:1118:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1173:10) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/pi/MagicMirror/modules/MMM-Tools/node_helper.js',
    '/home/pi/MagicMirror/js/app.js',
    '/home/pi/MagicMirror/js/electron.js',
    '/home/pi/MagicMirror/node_modules/electron/dist/resources/default_app.asar/main.js',
    undefined
  ]
}
[12.08.2022 19:54.36.981] [ERROR] MagicMirror² will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
[12.08.2022 19:54.36.982] [ERROR] If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
[1635:0812/195502.091221:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1743:0812/195503.364570:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1769:0812/195503.879521:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported.
[12.08.2022 20:06.05.090] [WARN]  You're using a full whitelist configuration to allow for all IPs
[1676:0812/200609.075206:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1730:0812/200610.010984:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization
[1749:0812/200610.493257:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported.

I have updated npm and node (in MagicMirror directory). I still have a black screen (I have done a reboot). When I run the config check I get a message saying there is no errors.

> magicmirror@2.20.0 config:check
> node js/check_config.js

[12.08.2022 15:58.52.189] [INFO]  Checking file...  /home/pi/MagicMirror/config/                                       config.js
[12.08.2022 15:58.52.486] [INFO]  Your configuration file doesn't contain syntax                                        errors :)

Didn’t realize the path mattered.

> magicmirror@2.20.0 config:check
> node js/check_config.js

/home/pi/MagicMirror/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:2383
const require$1 = Module.createRequire(require('url').pathToFileURL(__filename).toString());
                         ^

TypeError: Module.createRequire is not a function
    at Object.<anonymous> (/home/pi/MagicMirror/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:2383:26)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at Object.<anonymous> (/home/pi/MagicMirror/node_modules/eslint/lib/cli-engine/cli-engine.js:33:5)
    at Module._compile (internal/modules/cjs/loader.js:778:30)

I don’t understand this.