Did you try apt-get install packagekit-gtk3-module <https://packages.debian.org/sid/packagekit-gtk3-module>
At least this should fix Gtk-Message: Failed to load module "pk-gtk-module" On Wednesday, August 8, 2018 at 6:38:03 PM UTC+3, John Cremona wrote: > > I just updagred to 8.3 on a machine (ubuntu 16.04) where I have frequently > run Sage both command-line and jupyter notebook previously. Now when I type > > sage --notebook=jupyter > > I see > > ┌────────────────────────────────────────────────────────────────────┐ > │ SageMath version 8.3, Release Date: 2018-08-03 │ > │ Type "notebook()" for the browser-based notebook interface. │ > │ Type "help()" for help. │ > └────────────────────────────────────────────────────────────────────┘ > Please wait while the Sage Jupyter Notebook server starts... > [I 16:32:21.039 NotebookApp] Using MathJax: nbextensions/mathjax/MathJax.js > [I 16:32:21.347 NotebookApp] The port 8888 is already in use, trying > another port. > [I 16:32:21.353 NotebookApp] Serving notebooks from local directory: > /home/jec/sage-scripts > [I 16:32:21.353 NotebookApp] 0 active kernels > [I 16:32:21.353 NotebookApp] The Jupyter Notebook is running at: > [I 16:32:21.353 NotebookApp] http://localhost:8889/ > [I 16:32:21.354 NotebookApp] Use Control-C to stop this server and shut > down all kernels (twice to skip confirmation). > Gtk-Message: Failed to load module "pk-gtk-module" > Gtk-Message: Failed to load module "pk-gtk-module" > [54010:54010:0808/163222.159037:ERROR:sandbox_linux.cc(378)] > InitializeSandbox() called with multiple threads in process gpu-process. > [53973:54212:0808/163222.855277:ERROR:bus.cc(394)] Failed to connect to > the bus: Could not parse server address: Unknown address type (examples of > valid types are "tcp" and on UNIX "unix") > [53973:53973:0808/163222.961497:ERROR:gpu_process_transport_factory.cc(1016)] > Lost UI shared context. > > (chromium-browser:53973): LIBDBUSMENU-GLIB-WARNING **: Unable to get > session bus: Unknown or unsupported transport 'disabled' for address > 'disabled:' > [I 16:32:22.976 NotebookApp] 302 GET /tree (::1) 2.53ms > > > and the browser which pops up has a plain login page asking for a > password. There is a different user currently running some sessions (2 of > which look stale as they have been running since 2017) which is why it > switched from port 8888 to 8889, but I think from the above output that the > switch is incomplete and it wants me to log into his session on port 8888. > Perhaps. > > John > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.