Blank page after launch in terminal (Linux)

Filip_Cackovic · February 4, 2022, 4:50pm

Hello! I’m new here. I couldn’t find a topic with my problem.
I’ve installed miniconda and also jupyter lab.
I was trying to setup everything following this instructions for a class:

conda activate control
conda install numpy scipy matplotlib
conda install -c conda-forge ipympl
conda install -c conda-forge jupyterlab
conda install -c conda-forge control slycot
conda activate control
jupyter lab

There is no error message. Just a blank page with local host address.

adpatter · February 10, 2022, 6:40pm

I’ve seen this happen before on other systems. Does the browser have any plugins installed?

You may want to post the output of jupyter lab --debug.

Filip_Cackovic · February 12, 2022, 9:57am

Thanks for this:
Here is the output:

(control) filip@filip-Aspire-E5-571:~/Documents/Teorija upravljanja$ jupyter lab --debug
[D 2022-02-12 11:54:08.983 ServerApp] Searching ['/home/filip/Documents/Teorija upravljanja', '/home/filip/.jupyter', '/home/filip/.local/etc/jupyter', '/home/filip/miniconda3/envs/control/etc/jupyter', '/usr/local/etc/jupyter', '/etc/jupyter'] for config files
[D 2022-02-12 11:54:08.983 ServerApp] Looking for jupyter_config in /etc/jupyter
[D 2022-02-12 11:54:08.983 ServerApp] Looking for jupyter_config in /usr/local/etc/jupyter
[D 2022-02-12 11:54:08.984 ServerApp] Looking for jupyter_config in /home/filip/miniconda3/envs/control/etc/jupyter
[D 2022-02-12 11:54:08.984 ServerApp] Looking for jupyter_config in /home/filip/.local/etc/jupyter
[D 2022-02-12 11:54:08.984 ServerApp] Looking for jupyter_config in /home/filip/.jupyter
[D 2022-02-12 11:54:08.984 ServerApp] Looking for jupyter_config in /home/filip/Documents/Teorija upravljanja
[D 2022-02-12 11:54:08.985 ServerApp] Looking for jupyter_server_config in /etc/jupyter
[D 2022-02-12 11:54:08.986 ServerApp] Looking for jupyter_server_config in /usr/local/etc/jupyter
[D 2022-02-12 11:54:08.986 ServerApp] Looking for jupyter_server_config in /home/filip/miniconda3/envs/control/etc/jupyter
[D 2022-02-12 11:54:08.986 ServerApp] Looking for jupyter_server_config in /home/filip/.local/etc/jupyter
[D 2022-02-12 11:54:08.986 ServerApp] Looking for jupyter_server_config in /home/filip/.jupyter
[D 2022-02-12 11:54:08.986 ServerApp] Looking for jupyter_server_config in /home/filip/Documents/Teorija upravljanja
[D 2022-02-12 11:54:08.989 ServerApp] Paths used for configuration of jupyter_server_config: 
    	/etc/jupyter/jupyter_server_config.json
[D 2022-02-12 11:54:08.990 ServerApp] Paths used for configuration of jupyter_server_config: 
    	/usr/local/etc/jupyter/jupyter_server_config.json
[D 2022-02-12 11:54:08.991 ServerApp] Paths used for configuration of jupyter_server_config: 
    	/home/filip/miniconda3/envs/control/etc/jupyter/jupyter_server_config.d/jupyterlab.json
    	/home/filip/miniconda3/envs/control/etc/jupyter/jupyter_server_config.d/nbclassic.json
    	/home/filip/miniconda3/envs/control/etc/jupyter/jupyter_server_config.json
[D 2022-02-12 11:54:08.992 ServerApp] Paths used for configuration of jupyter_server_config: 
    	/home/filip/.local/etc/jupyter/jupyter_server_config.json
[D 2022-02-12 11:54:08.993 ServerApp] Paths used for configuration of jupyter_server_config: 
    	/home/filip/.jupyter/jupyter_server_config.json
[D 2022-02-12 11:54:09.023 LabApp] Config changed: {'NotebookApp': {}, 'ServerApp': {'log_level': 'DEBUG', 'jpserver_extensions': <LazyConfigValue {'update': {'nbclassic': True}}>}, 'ExtensionApp': {'log_level': 'DEBUG'}}
[I 2022-02-12 11:54:09.025 ServerApp] jupyterlab | extension was successfully linked.
[D 2022-02-12 11:54:09.041 NotebookApp] Config changed: {'NotebookApp': {}, 'ServerApp': {'log_level': 'DEBUG', 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'nbclassic': True}>}, 'ExtensionApp': {'log_level': 'DEBUG'}}
[D 2022-02-12 11:54:09.331 ServerApp] Paths used for configuration of jupyter_notebook_config: 
    	/home/filip/.jupyter/jupyter_notebook_config.json
[D 2022-02-12 11:54:09.332 ServerApp] Paths used for configuration of jupyter_notebook_config: 
    	/etc/jupyter/jupyter_notebook_config.json
[D 2022-02-12 11:54:09.332 ServerApp] Paths used for configuration of jupyter_notebook_config: 
    	/usr/local/etc/jupyter/jupyter_notebook_config.json
[D 2022-02-12 11:54:09.333 ServerApp] Paths used for configuration of jupyter_notebook_config: 
    	/home/filip/miniconda3/envs/control/etc/jupyter/jupyter_notebook_config.d/jupyterlab.json
    	/home/filip/miniconda3/envs/control/etc/jupyter/jupyter_notebook_config.json
[D 2022-02-12 11:54:09.334 ServerApp] Paths used for configuration of jupyter_notebook_config: 
    	/home/filip/.local/etc/jupyter/jupyter_notebook_config.json
[D 2022-02-12 11:54:09.334 ServerApp] Paths used for configuration of jupyter_notebook_config: 
    	/home/filip/.jupyter/jupyter_notebook_config.json
[I 2022-02-12 11:54:09.335 ServerApp] nbclassic | extension was successfully linked.
[D 2022-02-12 11:54:09.336 ServerApp] Config changed: {'ExtensionApp': {'log_level': 'DEBUG'}, 'NotebookApp': {}, 'ServerApp': {'log_level': 'DEBUG', 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'nbclassic': True}>}}
[D 2022-02-12 11:54:09.337 ServerApp] Raising open file limit: soft 1024->4096; hard 4096->4096
[I 2022-02-12 11:54:09.371 ServerApp] nbclassic | extension was successfully loaded.
[I 2022-02-12 11:54:09.373 LabApp] JupyterLab extension loaded from /home/filip/miniconda3/envs/control/lib/python3.10/site-packages/jupyterlab
[I 2022-02-12 11:54:09.373 LabApp] JupyterLab application directory is /home/filip/miniconda3/envs/control/share/jupyter/lab
[I 2022-02-12 11:54:09.378 ServerApp] jupyterlab | extension was successfully loaded.
[I 2022-02-12 11:54:09.379 ServerApp] Serving notebooks from local directory: /home/filip/Documents/Teorija upravljanja
[I 2022-02-12 11:54:09.379 ServerApp] Jupyter Server 1.13.4 is running at:
[I 2022-02-12 11:54:09.379 ServerApp] http://localhost:8888/lab?token=68e6f9db22ff4d09d590bf5962751889d0d95ff9f8708c54
[I 2022-02-12 11:54:09.379 ServerApp]  or http://127.0.0.1:8888/lab?token=68e6f9db22ff4d09d590bf5962751889d0d95ff9f8708c54
[I 2022-02-12 11:54:09.379 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 2022-02-12 11:54:09.452 ServerApp] 
    
    To access the server, open this file in a browser:
        file:///home/filip/.local/share/jupyter/runtime/jpserver-2536-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/lab?token=68e6f9db22ff4d09d590bf5962751889d0d95ff9f8708c54
     or http://127.0.0.1:8888/lab?token=68e6f9db22ff4d09d590bf5962751889d0d95ff9f8708c54
[D 2022-02-12 11:54:11.104 ServerApp] Accepting token-authenticated connection from 127.0.0.1
[D 2022-02-12 11:54:11.108 ServerApp] Paths used for configuration of page_config: 
    	/etc/jupyter/labconfig/page_config.json
[D 2022-02-12 11:54:11.109 ServerApp] Paths used for configuration of page_config: 
    	/usr/local/etc/jupyter/labconfig/page_config.json
[D 2022-02-12 11:54:11.109 ServerApp] Paths used for configuration of page_config: 
    	/home/filip/miniconda3/envs/control/etc/jupyter/labconfig/page_config.json
[D 2022-02-12 11:54:11.110 ServerApp] Paths used for configuration of page_config: 
    	/home/filip/.local/etc/jupyter/labconfig/page_config.json
[D 2022-02-12 11:54:11.111 ServerApp] Paths used for configuration of page_config: 
    	/home/filip/.jupyter/labconfig/page_config.json
[D 2022-02-12 11:54:11.115 LabApp] Using contents: services/contents
[D 2022-02-12 11:54:11.125 LabApp] 200 GET /lab?token=68e6f9db22ff4d09d590bf5962751889d0d95ff9f8708c54 (127.0.0.1) 22.56ms
[D 2022-02-12 11:54:11.313 ServerApp] Path jupyter-matplotlib/static/remoteEntry.8dfd98e8112437ce1d2a.js served from /home/filip/miniconda3/envs/control/share/jupyter/labextensions/jupyter-matplotlib/static/remoteEntry.8dfd98e8112437ce1d2a.js
[D 2022-02-12 11:54:11.315 ServerApp] 304 GET /lab/extensions/jupyter-matplotlib/static/remoteEntry.8dfd98e8112437ce1d2a.js (127.0.0.1) 4.27ms
[D 2022-02-12 11:54:11.318 ServerApp] Path @jupyter-widgets/jupyterlab-manager/static/remoteEntry.f6574b55a223d23e7a04.js served from /home/filip/miniconda3/envs/control/share/jupyter/labextensions/@jupyter-widgets/jupyterlab-manager/static/remoteEntry.f6574b55a223d23e7a04.js
[D 2022-02-12 11:54:11.319 ServerApp] 304 GET /lab/extensions/@jupyter-widgets/jupyterlab-manager/static/remoteEntry.f6574b55a223d23e7a04.js (127.0.0.1) 2.74ms

flo.beyer · February 14, 2022, 1:17pm

I also have maybe a similar problem… If this is different I also could add a new topic:

I normally start my lab on a remote ubuntu machine (and norymally everything works fine, except for this ONE machine ):

(grid) user@machine:~$ jupyter lab --no-browser --ip=10.X.X.XXX --port=8945
[I 2022-02-14 13:06:02.164 ServerApp] jupyterlab | extension was successfully linked.
[I 2022-02-14 13:06:02.840 ServerApp] nbclassic | extension was successfully linked.
[I 2022-02-14 13:06:02.886 ServerApp] nbclassic | extension was successfully loaded.
[I 2022-02-14 13:06:02.887 LabApp] JupyterLab extension loaded from /opt/anaconda3/envs/grid/lib/python3.8/site-packages/jupyterlab
[I 2022-02-14 13:06:02.887 LabApp] JupyterLab application directory is /opt/anaconda3/envs/grid/share/jupyter/lab
[I 2022-02-14 13:06:02.890 ServerApp] jupyterlab | extension was successfully loaded.
[I 2022-02-14 13:06:02.890 ServerApp] Serving notebooks from local directory: /home/eouser
[I 2022-02-14 13:06:02.890 ServerApp] Jupyter Server 1.13.5 is running at:
[I 2022-02-14 13:06:02.890 ServerApp] http://10.X.X.XXX:8945/lab?token=aa51237a12a9c006cf4e1811bdd2f3560bb3b9b9ae0d9514
[I 2022-02-14 13:06:02.890 ServerApp]  or http://127.0.0.1:8945/lab?token=aa51237a12a9c006cf4e1811bdd2f3560bb3b9b9ae0d9514
[I 2022-02-14 13:06:02.891 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 2022-02-14 13:06:02.908 ServerApp]

    To access the server, open this file in a browser:
        file:///home/eouser/.local/share/jupyter/runtime/jpserver-8549-open.html
    Or copy and paste one of these URLs:
        http://10.X.X.XXX:8945/lab?token=aa51237a12a9c006cf4e1811bdd2f3560bb3b9b9ae0d9514
     or http://127.0.0.1:8945/lab?token=aa51237a12a9c006cf4e1811bdd2f3560bb3b9b9ae0d9514

So, everything seems to be normal, but if I copy/paste the adress to browser, the lab is not loaded:

This is what --debug gives me:

(grid) user@machine:~$ jupyter lab --no-browser --ip=10.X.X.XXX --port=8945 --debug
[D 2022-02-14 13:15:10.579 ServerApp] Searching ['/home/eouser', '/home/eouser/.jupyter', '/home/eouser/.local/etc/jupyter', '/opt/anaconda3/envs/grid/etc/jupyter', '/usr/local/etc/jupyter', '/etc/jupyter'] for config files
[D 2022-02-14 13:15:10.579 ServerApp] Looking for jupyter_config in /etc/jupyter
[D 2022-02-14 13:15:10.579 ServerApp] Looking for jupyter_config in /usr/local/etc/jupyter
[D 2022-02-14 13:15:10.579 ServerApp] Looking for jupyter_config in /opt/anaconda3/envs/grid/etc/jupyter
[D 2022-02-14 13:15:10.580 ServerApp] Looking for jupyter_config in /home/eouser/.local/etc/jupyter
[D 2022-02-14 13:15:10.580 ServerApp] Looking for jupyter_config in /home/eouser/.jupyter
[D 2022-02-14 13:15:10.580 ServerApp] Looking for jupyter_config in /home/eouser
[D 2022-02-14 13:15:10.580 ServerApp] Looking for jupyter_server_config in /etc/jupyter
[D 2022-02-14 13:15:10.581 ServerApp] Looking for jupyter_server_config in /usr/local/etc/jupyter
[D 2022-02-14 13:15:10.581 ServerApp] Looking for jupyter_server_config in /opt/anaconda3/envs/grid/etc/jupyter
[D 2022-02-14 13:15:10.581 ServerApp] Looking for jupyter_server_config in /home/eouser/.local/etc/jupyter
[D 2022-02-14 13:15:10.581 ServerApp] Looking for jupyter_server_config in /home/eouser/.jupyter
[D 2022-02-14 13:15:10.581 ServerApp] Looking for jupyter_server_config in /home/eouser
[D 2022-02-14 13:15:10.583 ServerApp] Paths used for configuration of jupyter_server_config:
        /etc/jupyter/jupyter_server_config.json
[D 2022-02-14 13:15:10.583 ServerApp] Paths used for configuration of jupyter_server_config:
        /usr/local/etc/jupyter/jupyter_server_config.json
[D 2022-02-14 13:15:10.583 ServerApp] Paths used for configuration of jupyter_server_config:
        /opt/anaconda3/envs/grid/etc/jupyter/jupyter_server_config.d/jupyterlab.json
        /opt/anaconda3/envs/grid/etc/jupyter/jupyter_server_config.d/nbclassic.json
        /opt/anaconda3/envs/grid/etc/jupyter/jupyter_server_config.json
[D 2022-02-14 13:15:10.584 ServerApp] Paths used for configuration of jupyter_server_config:
        /home/eouser/.local/etc/jupyter/jupyter_server_config.json
[D 2022-02-14 13:15:10.584 ServerApp] Paths used for configuration of jupyter_server_config:
        /home/eouser/.jupyter/jupyter_server_config.json
[D 2022-02-14 13:15:10.597 LabApp] Config changed: {'NotebookApp': {}, 'ServerApp': {'ip': '10.0.0.14', 'port': 8945, 'open_browser': False, 'log_level': 'DEBUG', 'jpserver_extensions': <LazyConfigValue {'update': {'nbclassic': True}}>}, 'ExtensionApp': {'open_browser': False, 'log_level': 'DEBUG'}}
[I 2022-02-14 13:15:10.598 ServerApp] jupyterlab | extension was successfully linked.
[D 2022-02-14 13:15:10.605 NotebookApp] Config changed: {'NotebookApp': {}, 'ServerApp': {'ip': '10.0.0.14', 'port': 8945, 'open_browser': False, 'log_level': 'DEBUG', 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'nbclassic': True}>}, 'ExtensionApp': {'open_browser': False, 'log_level': 'DEBUG'}}
[D 2022-02-14 13:15:10.751 ServerApp] Paths used for configuration of jupyter_notebook_config:
        /home/eouser/.jupyter/jupyter_notebook_config.json
[D 2022-02-14 13:15:10.752 ServerApp] Paths used for configuration of jupyter_notebook_config:
        /etc/jupyter/jupyter_notebook_config.json
[D 2022-02-14 13:15:10.752 ServerApp] Paths used for configuration of jupyter_notebook_config:
        /usr/local/etc/jupyter/jupyter_notebook_config.json
[D 2022-02-14 13:15:10.753 ServerApp] Paths used for configuration of jupyter_notebook_config:
        /opt/anaconda3/envs/grid/etc/jupyter/jupyter_notebook_config.d/jupyterlab.json
        /opt/anaconda3/envs/grid/etc/jupyter/jupyter_notebook_config.json
[D 2022-02-14 13:15:10.753 ServerApp] Paths used for configuration of jupyter_notebook_config:
        /home/eouser/.local/etc/jupyter/jupyter_notebook_config.json
[D 2022-02-14 13:15:10.753 ServerApp] Paths used for configuration of jupyter_notebook_config:
        /home/eouser/.jupyter/jupyter_notebook_config.json
[I 2022-02-14 13:15:10.753 ServerApp] nbclassic | extension was successfully linked.
[D 2022-02-14 13:15:10.754 ServerApp] Config changed: {'ExtensionApp': {'open_browser': False, 'log_level': 'DEBUG'}, 'NotebookApp': {}, 'ServerApp': {'ip': '10.X.X.XXX', 'port': 8945, 'open_browser': False, 'log_level': 'DEBUG', 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'nbclassic': True}>}}
[D 2022-02-14 13:15:10.755 ServerApp] Raising open file limit: soft 1024->4096; hard 1048576->1048576
[I 2022-02-14 13:15:10.799 ServerApp] nbclassic | extension was successfully loaded.
[I 2022-02-14 13:15:10.800 LabApp] JupyterLab extension loaded from /opt/anaconda3/envs/grid/lib/python3.8/site-packages/jupyterlab
[I 2022-02-14 13:15:10.800 LabApp] JupyterLab application directory is /opt/anaconda3/envs/grid/share/jupyter/lab
[I 2022-02-14 13:15:10.803 ServerApp] jupyterlab | extension was successfully loaded.
[I 2022-02-14 13:15:10.803 ServerApp] Serving notebooks from local directory: /home/eouser
[I 2022-02-14 13:15:10.803 ServerApp] Jupyter Server 1.13.5 is running at:
[I 2022-02-14 13:15:10.803 ServerApp] http://10.X.X.XXX:8945/lab?token=60501ad9893d478fdcffbf47213eaf09c836f592b86069ae
[I 2022-02-14 13:15:10.803 ServerApp]  or http://127.0.0.1:8945/lab?token=60501ad9893d478fdcffbf47213eaf09c836f592b86069ae
[I 2022-02-14 13:15:10.803 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 2022-02-14 13:15:10.806 ServerApp]

    To access the server, open this file in a browser:
        file:///home/eouser/.local/share/jupyter/runtime/jpserver-11838-open.html
    Or copy and paste one of these URLs:
        http://10.X.X.XXX:8945/lab?token=60501ad9893d478fdcffbf47213eaf09c836f592b86069ae
     or http://127.0.0.1:8945/lab?token=60501ad9893d478fdcffbf47213eaf09c836f592b86069ae

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