Strange font set to user terminal

[ariansacct]

trafficstars

Bug description

We have a Jupyterhub (TLJH) server with about 10 users. Currently one of them has this as his default terminal font when using Chrome. He does not have this issue when using Firefox.

No one else has this issue. What we tried:

• Setting and resetting the font through the console settings
• Restarting the server
• Upgrading Jupyterhub
• Clearing his cache and cookies
• Removing and recreating his user account (with the existing user space, which we couldn't afford to remove)
• Making sure (to the best of our knowledge) no font overrides are set anywhere

He needs to use the terminal regularly and having to read the screen like this is very annoying. Any tips would be appreciated.

How to reproduce

Not sure really.

Expected behaviour

Normal monospace font to be rendered in the terminal.

Actual behaviour

Strange font.

Your personal set up

Server host OS:

Description:    Ubuntu 22.04.3 LTS
Release:        22.04
Codename:       jammy

He accesses the server on a Windows 10 machine using Chrome Version 125.0.6422.61 (Official Build) (64-bit).

We installed TLJH by following the instructions in the documentation here.

pip freeze output:

alembic==1.13.1
altair==5.3.0
anyio==4.2.0
appdirs==1.4.4
argon2-cffi==23.1.0
argon2-cffi-bindings==21.2.0
arrow==1.3.0
asttokens==2.4.1
async-generator==1.10
async-lru==2.0.4
attrs==23.2.0
Automat==20.2.0
Babel==2.14.0
backcall==0.2.0
bcrypt==3.2.0
beautifulsoup4==4.10.0
beniget==0.4.1
bleach==6.1.0
blinker==1.4
Brotli==1.0.9
cachetools==5.3.3
certifi==2020.6.20
certipy==0.1.3
cffi==1.15.0
chardet==4.0.0
charset-normalizer==3.3.2
click==8.1.7
cloud-init==23.3.3
cloudpickle==3.0.0
colorama==0.4.4
comm==0.2.1
command-not-found==0.3
configobj==5.0.6
constantly==15.1.0
cryptography==3.4.8
cycler==0.11.0
dask==2024.2.0
dbus-python==1.2.18
debugpy==1.8.0
decorator==4.4.2
defusedxml==0.7.1
distro==1.7.0
distro-info==1.1+ubuntu0.2
dnspython==2.1.0
elastic-transport==8.12.0
elasticsearch==8.12.0
entrypoints==0.4
et-xmlfile==1.1.0
exceptiongroup==1.2.0
executing==2.0.1
fastjsonschema==2.19.1
fonttools==4.29.1
fqdn==1.5.1
fs==2.4.12
fsspec==2024.2.0
gast==0.5.2
gitdb==4.0.11
GitPython==3.1.43
greenlet==3.0.3
gssapi==1.6.12
gyp==0.1
h11==0.14.0
html5lib==1.1
httpcore==1.0.2
httplib2==0.20.2
httpx==0.26.0
hyperlink==21.0.0
idna==3.3
importlib-metadata==7.0.1
incremental==21.3.0
ipaclient==4.9.8
ipalib==4.9.8
ipaplatform==4.9.8
ipapython==4.9.8
ipykernel==6.29.0
ipython==8.21.0
ipython_genutils==0.2.0
ipywidgets==8.1.1
isoduration==20.11.0
jdatetime==4.1.1
jedi==0.19.1
jeepney==0.7.1
Jinja2==3.0.3
joblib==1.3.2
json5==0.9.14
jsonpatch==1.32
jsonpointer==2.0
jsonschema==4.21.1
jsonschema-specifications==2023.12.1
jupyter==1.0.0
jupyter-console==6.6.3
jupyter-contrib-core==0.4.2
jupyter-contrib-nbextensions==0.7.0
jupyter-events==0.9.0
jupyter-highlight-selected-word==0.2.0
jupyter-lsp==2.2.2
jupyter-nbextensions-configurator==0.6.3
jupyter-resource-usage==1.0.1
jupyter-telemetry==0.1.0
jupyter_client==8.6.0
jupyter_core==5.7.1
jupyter_server==2.12.5
jupyter_server_terminals==0.5.2
jupyterhub==4.0.2
jupyterhub-dummyauthenticator==0.3.1
jupyterlab==4.1.1
jupyterlab_pygments==0.3.0
jupyterlab_server==2.25.2
jupyterlab_widgets==3.0.10
keyring==23.5.0
kiwisolver==1.3.2
launchpadlib==1.10.16
lazr.restfulclient==0.14.4
lazr.uri==1.0.6
locket==1.0.0
lxml==4.8.0
lz4==3.1.3+dfsg
Mako==1.3.2
markdown-it-py==3.0.0
MarkupSafe==2.0.1
matplotlib==3.5.1
matplotlib-inline==0.1.6
mdurl==0.1.2
mistune==3.0.2
more-itertools==8.10.0
mpmath==0.0.0
nbclient==0.9.0
nbconvert==7.14.2
nbformat==5.9.2
nest-asyncio==1.6.0
netaddr==0.8.0
netifaces==0.11.0
notebook==7.0.7
notebook_shim==0.2.3
numpy==1.24.0
oauthlib==3.2.0
olefile==0.46
openpyxl==3.1.2
overrides==7.7.0
packaging==23.2
pamela==1.1.0
pandas==2.2.0
pandocfilters==1.5.1
paralleltools==0.0.3
parso==0.8.3
partd==1.4.1
patsy==0.5.6
pexpect==4.8.0
pickleshare==0.7.5
Pillow==9.0.1
platformdirs==4.2.0
plotly==5.18.0
ply==3.11
prometheus-client==0.19.0
prompt-toolkit==3.0.43
protobuf==4.25.3
psutil==5.9.8
psycopg2-binary==2.9.9
ptyprocess==0.7.0
pure-eval==0.2.2
py==1.10.0
pyarrow==15.0.0
pyasn1==0.4.8
pyasn1-modules==0.2.1
pycparser==2.21
pydeck==0.9.0
Pygments==2.17.2
PyGObject==3.42.1
PyHamcrest==2.0.2
PyJWT==2.3.0
pyodbc==5.1.0
pyOpenSSL==21.0.0
pyparsing==2.4.7
pyperclip==1.8.2
pyrsistent==0.18.1
pyserial==3.5
python-apt==2.4.0+ubuntu2
python-augeas==0.5.0
python-dateutil==2.8.2
python-debian==0.1.43+ubuntu1.1
python-json-logger==2.0.7
python-ldap==3.2.0
python-magic==0.4.24
python-yubico==1.3.3
pythran==0.10.0
pytz==2024.1
pyusb==1.2.1.post1
PyYAML==5.4.1
pyzmq==25.1.2
qrcode==7.3.1
qtconsole==5.5.1
QtPy==2.4.1
referencing==0.33.0
requests==2.31.0
requests-toolbelt==0.9.1
rfc3339-validator==0.1.4
rfc3986-validator==0.1.1
rich==13.7.1
rpds-py==0.17.1
ruamel.yaml==0.18.6
ruamel.yaml.clib==0.2.8
scikit-learn==1.4.0
scipy==1.8.0
SecretStorage==3.3.1
Send2Trash==1.8.2
service-identity==18.1.0
six==1.16.0
smmap==5.0.1
sniffio==1.3.0
sos==4.5.6
soupsieve==2.3.1
SQLAlchemy==2.0.26
ssh-import-id==5.11
stack-data==0.6.3
statsmodels==0.14.1
streamlit==1.33.0
sympy==1.9
systemd-python==234
tenacity==8.2.3
terminado==0.18.0
testpath==0.5.0
threadpoolctl==3.2.0
tinycss2==1.2.1
toml==0.10.2
tomli==2.0.1
toolz==0.12.1
tornado==6.4
traitlets==5.14.1
Twisted==22.1.0
types-python-dateutil==2.8.19.20240106
typing_extensions==4.11.0
tzdata==2023.4
ubuntu-advantage-tools==8001
ubuntu-drivers-common==0.0.0
ufoLib2==0.13.1
ufw==0.36.1
unattended-upgrades==0.1
unicodedata2==14.0.0
uri-template==1.3.0
urllib3==1.26.5
wadllib==1.3.6
watchdog==4.0.0
wcwidth==0.2.13
webcolors==1.13
webencodings==0.5.1
websocket-client==1.7.0
widgetsnbextension==4.0.9
xgboost==2.0.3
xkit==0.0.0
zipp==1.0.0
zope.interface==5.4.0

[welcome[bot]]

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[consideRatio]

I have no idea what cause this bug for one specific user, but it sounds related to JupyterLab presenting that terminal UI rather than JupyterHub or having JupyterHub installed via this distribution. It could also be entirely unrelated to JuptyerLab and related to the individual persons browser settings or plugins etc.

An idea is to ask that the user try using chrome with extensions disabled etc maybe.

Since the issue isn't related to this project more directly, I'll go for a close. A suitable place to ask for help about this could be in jupyterlab context, such as discourse.jupyter.org within the jupyterlab category.