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Issue with anaconda-navigator: WARNING linux_scaling.get_scaling_factor_using_dbus:27 #12133

@aquestionx

Description

@aquestionx

Actual Behavior

A warning message appears in terminal after launch anaconda-navigator. "WARNING linux_scaling.get_scaling_factor_using_dbus:27 An exception occurred during fetching list of system display settings."
The maximize button is not in titlebar and it's impossible to maximize the window

Expected Behavior

There should be a maximize button in the titlebar

Steps to Reproduce

I just installed Anaconda3-2020.07-Linux-x86_64.sh on Linux Mint 19.3 Tricia with Cinnamon desktop. After installation, the first time I run anaconda-navigator from terminal, I encountered a problem "UnboundLocalError: local variable 'DISTRO_NAME' referenced before assignment". I fix that problem by run "conda update anaconda-navigator" in terminal. Now I can open Anaconda Navigator with the command "anaconda-navigator" but there is a warning in terminal: "WARNING linux_scaling.get_scaling_factor_using_dbus:27
An exception occurred during fetching list of system display settings."

Anaconda or Miniconda version:

Anaconda3-2020.07-Linux-x86_64.sh

Operating System:

Linux Mint 19.3 Tricia

conda info
PASTE OUTPUT HERE:$ conda info

     active environment : base
    active env location : /home/sam/anaconda3
            shell level : 1
       user config file : /home/sam/.condarc
 populated config files : /home/sam/.condarc
          conda version : 4.9.1
    conda-build version : 3.18.11
         python version : 3.8.3.final.0
       virtual packages : __glibc=2.27=0
                          __unix=0=0
                          __archspec=1=x86_64
       base environment : /home/sam/anaconda3  (writable)
           channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/linux-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /home/sam/anaconda3/pkgs
                          /home/sam/.conda/pkgs
       envs directories : /home/sam/anaconda3/envs
                          /home/sam/.conda/envs
               platform : linux-64
             user-agent : conda/4.9.1 requests/2.24.0 CPython/3.8.3 Linux/5.4.0-52-generic linuxmint/19.3 glibc/2.27
                UID:GID : 1000:1000
             netrc file : None
           offline mode : False


conda list --show-channel-urls
PASTE OUTPUT HERE:$ conda list --show-channel-urls
# packages in environment at /home/sam/anaconda3:
#
# Name                    Version                   Build  Channel
_ipyw_jlab_nb_ext_conf    0.1.0                    py38_0    defaults
_libgcc_mutex             0.1                        main    defaults
alabaster                 0.7.12                     py_0    defaults
anaconda                  2020.07                  py38_0    defaults
anaconda-client           1.7.2                    py38_0    defaults
anaconda-navigator        1.10.0                   py38_0    defaults
anaconda-project          0.8.4                      py_0    defaults
argh                      0.26.2                   py38_0    defaults
asn1crypto                1.3.0                    py38_0    defaults
astroid                   2.4.2                    py38_0    defaults
astropy                   4.0.1.post1      py38h7b6447c_1    defaults
atomicwrites              1.4.0                      py_0    defaults
attrs                     19.3.0                     py_0    defaults
autopep8                  1.5.3                      py_0    defaults
babel                     2.8.0                      py_0    defaults
backcall                  0.2.0                      py_0    defaults
backports                 1.0                        py_2    defaults
backports.functools_lru_cache 1.6.1                      py_0    defaults
backports.shutil_get_terminal_size 1.0.0                    py38_2    defaults
backports.tempfile        1.0                        py_1    defaults
backports.weakref         1.0.post1                  py_1    defaults
beautifulsoup4            4.9.1                    py38_0    defaults
bitarray                  1.4.0            py38h7b6447c_0    defaults
bkcharts                  0.2                      py38_0    defaults
blas                      1.0                         mkl    defaults
bleach                    3.1.5                      py_0    defaults
blosc                     1.19.0               hd408876_0    defaults
bokeh                     2.1.1                    py38_0    defaults
boto                      2.49.0                   py38_0    defaults
bottleneck                1.3.2            py38heb32a55_1    defaults
brotlipy                  0.7.0           py38h7b6447c_1000    defaults
bzip2                     1.0.8                h7b6447c_0    defaults
ca-certificates           2020.6.24                     0    defaults
cairo                     1.14.12              h8948797_3    defaults
certifi                   2020.6.20                py38_0    defaults
cffi                      1.14.0           py38he30daa8_1    defaults
chardet                   3.0.4                 py38_1003    defaults
click                     7.1.2                      py_0    defaults
cloudpickle               1.5.0                      py_0    defaults
clyent                    1.2.2                    py38_1    defaults
colorama                  0.4.3                      py_0    defaults
conda                     4.9.1            py38h06a4308_0    defaults
conda-build               3.18.11                  py38_0    defaults
conda-env                 2.6.0                         1    defaults
conda-package-handling    1.7.2            py38h03888b9_0    defaults
conda-verify              3.4.2                      py_1    defaults
contextlib2               0.6.0.post1                py_0    defaults
cryptography              2.9.2            py38h1ba5d50_0    defaults
curl                      7.71.1               hbc83047_1    defaults
cycler                    0.10.0                   py38_0    defaults
cython                    0.29.21          py38he6710b0_0    defaults
cytoolz                   0.10.1           py38h7b6447c_0    defaults
dask                      2.20.0                     py_0    defaults
dask-core                 2.20.0                     py_0    defaults
dbus                      1.13.16              hb2f20db_0    defaults
decorator                 4.4.2                      py_0    defaults
defusedxml                0.6.0                      py_0    defaults
diff-match-patch          20200713                   py_0    defaults
distributed               2.20.0                   py38_0    defaults
docutils                  0.16                     py38_1    defaults
entrypoints               0.3                      py38_0    defaults
et_xmlfile                1.0.1                   py_1001    defaults
expat                     2.2.9                he6710b0_2    defaults
fastcache                 1.1.0            py38h7b6447c_0    defaults
filelock                  3.0.12                     py_0    defaults
flake8                    3.8.3                      py_0    defaults
flask                     1.1.2                      py_0    defaults
fontconfig                2.13.0               h9420a91_0    defaults
freetype                  2.10.2               h5ab3b9f_0    defaults
fribidi                   1.0.9                h7b6447c_0    defaults
fsspec                    0.7.4                      py_0    defaults
future                    0.18.2                   py38_1    defaults
get_terminal_size         1.0.0                haa9412d_0    defaults
gevent                    20.6.2           py38h7b6447c_0    defaults
glib                      2.65.0               h3eb4bd4_0    defaults
glob2                     0.7                        py_0    defaults
gmp                       6.1.2                h6c8ec71_1    defaults
gmpy2                     2.0.8            py38hd5f6e3b_3    defaults
graphite2                 1.3.14               h23475e2_0    defaults
greenlet                  0.4.16           py38h7b6447c_0    defaults
gst-plugins-base          1.14.0               hbbd80ab_1    defaults
gstreamer                 1.14.0               hb31296c_0    defaults
h5py                      2.10.0           py38h7918eee_0    defaults
harfbuzz                  2.4.0                hca77d97_1    defaults
hdf5                      1.10.4               hb1b8bf9_0    defaults
heapdict                  1.0.1                      py_0    defaults
html5lib                  1.1                        py_0    defaults
icu                       58.2                 he6710b0_3    defaults
idna                      2.10                       py_0    defaults
imageio                   2.9.0                      py_0    defaults
imagesize                 1.2.0                      py_0    defaults
importlib-metadata        1.7.0                    py38_0    defaults
importlib_metadata        1.7.0                         0    defaults
intel-openmp              2020.1                      217    defaults
intervaltree              3.0.2                      py_1    defaults
ipykernel                 5.3.2            py38h5ca1d4c_0    defaults
ipython                   7.16.1           py38h5ca1d4c_0    defaults
ipython_genutils          0.2.0                    py38_0    defaults
ipywidgets                7.5.1                      py_0    defaults
isort                     4.3.21                   py38_0    defaults
itsdangerous              1.1.0                      py_0    defaults
jbig                      2.1                  hdba287a_0    defaults
jdcal                     1.4.1                      py_0    defaults
jedi                      0.17.1                   py38_0    defaults
jeepney                   0.4.3                      py_0    defaults
jinja2                    2.11.2                     py_0    defaults
joblib                    0.16.0                     py_0    defaults
jpeg                      9b                   h024ee3a_2    defaults
json5                     0.9.5                      py_0    defaults
jsonschema                3.2.0                    py38_0    defaults
jupyter                   1.0.0                    py38_7    defaults
jupyter_client            6.1.6                      py_0    defaults
jupyter_console           6.1.0                      py_0    defaults
jupyter_core              4.6.3                    py38_0    defaults
jupyterlab                2.1.5                      py_0    defaults
jupyterlab_server         1.2.0                      py_0    defaults
keyring                   21.2.1                   py38_0    defaults
kiwisolver                1.2.0            py38hfd86e86_0    defaults
krb5                      1.18.2               h173b8e3_0    defaults
lazy-object-proxy         1.4.3            py38h7b6447c_0    defaults
lcms2                     2.11                 h396b838_0    defaults
ld_impl_linux-64          2.33.1               h53a641e_7    defaults
libarchive                3.4.2                h62408e4_0    defaults
libcurl                   7.71.1               h20c2e04_1    defaults
libedit                   3.1.20191231         h14c3975_1    defaults
libffi                    3.3                  he6710b0_2    defaults
libgcc-ng                 9.1.0                hdf63c60_0    defaults
libgfortran-ng            7.3.0                hdf63c60_0    defaults
liblief                   0.10.1               he6710b0_0    defaults
libllvm9                  9.0.1                h4a3c616_1    defaults
libpng                    1.6.37               hbc83047_0    defaults
libsodium                 1.0.18               h7b6447c_0    defaults
libspatialindex           1.9.3                he6710b0_0    defaults
libssh2                   1.9.0                h1ba5d50_1    defaults
libstdcxx-ng              9.1.0                hdf63c60_0    defaults
libtiff                   4.1.0                h2733197_1    defaults
libtool                   2.4.6                h7b6447c_5    defaults
libuuid                   1.0.3                h1bed415_2    defaults
libxcb                    1.14                 h7b6447c_0    defaults
libxml2                   2.9.10               he19cac6_1    defaults
libxslt                   1.1.34               hc22bd24_0    defaults
llvmlite                  0.33.0           py38hc6ec683_1    defaults
locket                    0.2.0                    py38_1    defaults
lxml                      4.5.2            py38hefd8a0e_0    defaults
lz4-c                     1.9.2                he6710b0_0    defaults
lzo                       2.10                 h7b6447c_2    defaults
markupsafe                1.1.1            py38h7b6447c_0    defaults
matplotlib                3.2.2                         0    defaults
matplotlib-base           3.2.2            py38hef1b27d_0    defaults
mccabe                    0.6.1                    py38_1    defaults
mistune                   0.8.4           py38h7b6447c_1000    defaults
mkl                       2020.1                      217    defaults
mkl-service               2.3.0            py38he904b0f_0    defaults
mkl_fft                   1.1.0            py38h23d657b_0    defaults
mkl_random                1.1.1            py38h0573a6f_0    defaults
mock                      4.0.2                      py_0    defaults
more-itertools            8.4.0                      py_0    defaults
mpc                       1.1.0                h10f8cd9_1    defaults
mpfr                      4.0.2                hb69a4c5_1    defaults
mpmath                    1.1.0                    py38_0    defaults
msgpack-python            1.0.0            py38hfd86e86_1    defaults
multipledispatch          0.6.0                    py38_0    defaults
navigator-updater         0.2.1                    py38_0    defaults
nbconvert                 5.6.1                    py38_0    defaults
nbformat                  5.0.7                      py_0    defaults
ncurses                   6.2                  he6710b0_1    defaults
networkx                  2.4                        py_1    defaults
nltk                      3.5                        py_0    defaults
nose                      1.3.7                    py38_2    defaults
notebook                  6.0.3                    py38_0    defaults
numba                     0.50.1           py38h0573a6f_1    defaults
numexpr                   2.7.1            py38h423224d_0    defaults
numpy                     1.18.5           py38ha1c710e_0    defaults
numpy-base                1.18.5           py38hde5b4d6_0    defaults
numpydoc                  1.1.0                      py_0    defaults
olefile                   0.46                       py_0    defaults
openpyxl                  3.0.4                      py_0    defaults
openssl                   1.1.1g               h7b6447c_0    defaults
packaging                 20.4                       py_0    defaults
pandas                    1.0.5            py38h0573a6f_0    defaults
pandoc                    2.10                          0    defaults
pandocfilters             1.4.2                    py38_1    defaults
pango                     1.45.3               hd140c19_0    defaults
parso                     0.7.0                      py_0    defaults
partd                     1.1.0                      py_0    defaults
patchelf                  0.11                 he6710b0_0    defaults
path                      13.1.0                   py38_0    defaults
path.py                   12.4.0                        0    defaults
pathlib2                  2.3.5                    py38_0    defaults
pathtools                 0.1.2                      py_1    defaults
patsy                     0.5.1                    py38_0    defaults
pcre                      8.44                 he6710b0_0    defaults
pep8                      1.7.1                    py38_0    defaults
pexpect                   4.8.0                    py38_0    defaults
pickleshare               0.7.5                 py38_1000    defaults
pillow                    7.2.0            py38hb39fc2d_0    defaults
pip                       20.1.1                   py38_1    defaults
pixman                    0.40.0               h7b6447c_0    defaults
pkginfo                   1.5.0.1                  py38_0    defaults
pluggy                    0.13.1                   py38_0    defaults
ply                       3.11                     py38_0    defaults
prometheus_client         0.8.0                      py_0    defaults
prompt-toolkit            3.0.5                      py_0    defaults
prompt_toolkit            3.0.5                         0    defaults
psutil                    5.7.0            py38h7b6447c_0    defaults
ptyprocess                0.6.0                    py38_0    defaults
py                        1.9.0                      py_0    defaults
py-lief                   0.10.1           py38h403a769_0    defaults
pycodestyle               2.6.0                      py_0    defaults
pycosat                   0.6.3            py38h7b6447c_1    defaults
pycparser                 2.20                       py_2    defaults
pycurl                    7.43.0.5         py38h1ba5d50_0    defaults
pydocstyle                5.0.2                      py_0    defaults
pyflakes                  2.2.0                      py_0    defaults
pygments                  2.6.1                      py_0    defaults
pylint                    2.5.3                    py38_0    defaults
pyodbc                    4.0.30           py38he6710b0_0    defaults
pyopenssl                 19.1.0                     py_1    defaults
pyparsing                 2.4.7                      py_0    defaults
pyqt                      5.9.2            py38h05f1152_4    defaults
pyrsistent                0.16.0           py38h7b6447c_0    defaults
pysocks                   1.7.1                    py38_0    defaults
pytables                  3.6.1            py38h9fd0a39_0    defaults
pytest                    5.4.3                    py38_0    defaults
python                    3.8.3                hcff3b4d_2    defaults
python-dateutil           2.8.1                      py_0    defaults
python-jsonrpc-server     0.3.4                      py_1    defaults
python-language-server    0.34.1                   py38_0    defaults
python-libarchive-c       2.9                        py_0    defaults
pytz                      2020.1                     py_0    defaults
pywavelets                1.1.1            py38h7b6447c_0    defaults
pyxdg                     0.26                       py_0    defaults
pyyaml                    5.3.1            py38h7b6447c_1    defaults
pyzmq                     19.0.1           py38he6710b0_1    defaults
qdarkstyle                2.8.1                      py_0    defaults
qt                        5.9.7                h5867ecd_1    defaults
qtawesome                 0.7.2                      py_0    defaults
qtconsole                 4.7.5                      py_0    defaults
qtpy                      1.9.0                      py_0    defaults
readline                  8.0                  h7b6447c_0    defaults
regex                     2020.6.8         py38h7b6447c_0    defaults
requests                  2.24.0                     py_0    defaults
ripgrep                   11.0.2               he32d670_0    defaults
rope                      0.17.0                     py_0    defaults
rtree                     0.9.4                    py38_1    defaults
ruamel_yaml               0.15.87          py38h7b6447c_1    defaults
scikit-image              0.16.2           py38h0573a6f_0    defaults
scikit-learn              0.23.1           py38h423224d_0    defaults
scipy                     1.5.0            py38h0b6359f_0    defaults
seaborn                   0.10.1                     py_0    defaults
secretstorage             3.1.2                    py38_0    defaults
send2trash                1.5.0                    py38_0    defaults
setuptools                49.2.0                   py38_0    defaults
simplegeneric             0.8.1                    py38_2    defaults
singledispatch            3.4.0.3                  py38_0    defaults
sip                       4.19.13          py38he6710b0_0    defaults
six                       1.15.0                     py_0    defaults
snappy                    1.1.8                he6710b0_0    defaults
snowballstemmer           2.0.0                      py_0    defaults
sortedcollections         1.2.1                      py_0    defaults
sortedcontainers          2.2.2                      py_0    defaults
soupsieve                 2.0.1                      py_0    defaults
sphinx                    3.1.2                      py_0    defaults
sphinxcontrib             1.0                      py38_1    defaults
sphinxcontrib-applehelp   1.0.2                      py_0    defaults
sphinxcontrib-devhelp     1.0.2                      py_0    defaults
sphinxcontrib-htmlhelp    1.0.3                      py_0    defaults
sphinxcontrib-jsmath      1.0.1                      py_0    defaults
sphinxcontrib-qthelp      1.0.3                      py_0    defaults
sphinxcontrib-serializinghtml 1.1.4                      py_0    defaults
sphinxcontrib-websupport  1.2.3                      py_0    defaults
spyder                    4.1.4                    py38_0    defaults
spyder-kernels            1.9.2                    py38_0    defaults
sqlalchemy                1.3.18           py38h7b6447c_0    defaults
sqlite                    3.32.3               h62c20be_0    defaults
statsmodels               0.11.1           py38h7b6447c_0    defaults
sympy                     1.6.1                    py38_0    defaults
tbb                       2020.0               hfd86e86_0    defaults
tblib                     1.6.0                      py_0    defaults
terminado                 0.8.3                    py38_0    defaults
testpath                  0.4.4                      py_0    defaults
threadpoolctl             2.1.0              pyh5ca1d4c_0    defaults
tk                        8.6.10               hbc83047_0    defaults
toml                      0.10.1                     py_0    defaults
toolz                     0.10.0                     py_0    defaults
tornado                   6.0.4            py38h7b6447c_1    defaults
tqdm                      4.47.0                     py_0    defaults
traitlets                 4.3.3                    py38_0    defaults
typing_extensions         3.7.4.2                    py_0    defaults
ujson                     1.35             py38h7b6447c_0    defaults
unicodecsv                0.14.1                   py38_0    defaults
unixodbc                  2.3.7                h14c3975_0    defaults
urllib3                   1.25.9                     py_0    defaults
watchdog                  0.10.3                   py38_0    defaults
wcwidth                   0.2.5                      py_0    defaults
webencodings              0.5.1                    py38_1    defaults
werkzeug                  1.0.1                      py_0    defaults
wheel                     0.34.2                   py38_0    defaults
widgetsnbextension        3.5.1                    py38_0    defaults
wrapt                     1.11.2           py38h7b6447c_0    defaults
wurlitzer                 2.0.1                    py38_0    defaults
xlrd                      1.2.0                      py_0    defaults
xlsxwriter                1.2.9                      py_0    defaults
xlwt                      1.3.0                    py38_0    defaults
xmltodict                 0.12.0                     py_0    defaults
xz                        5.2.5                h7b6447c_0    defaults
yaml                      0.2.5                h7b6447c_0    defaults
yapf                      0.30.0                     py_0    defaults
zeromq                    4.3.2                he6710b0_2    defaults
zict                      2.0.0                      py_0    defaults
zipp                      3.1.0                      py_0    defaults
zlib                      1.2.11               h7b6447c_3    defaults
zope                      1.0                      py38_1    defaults
zope.event                4.4                      py38_0    defaults
zope.interface            4.7.1            py38h7b6447c_0    defaults
zstd                      1.4.5                h0b5b093_0    defaults

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