I cannot open the system settings. When I run this in terminal
(gnome-control-center:11494): GLib-CRITICAL **: g_strsplit: assertion 'string != NULL' failed Segmentation fault (core dumped)
When I run this as sudo, i.e.:
$ sudo gnome-control-center
the full information is
error: XDG_RUNTIME_DIR not set in the environment. (gnome-control-center:13379): GLib-CRITICAL **: g_strsplit: assertion 'string != NULL' failed Segmentation fault (core dumped)
I have tried purging and reinstalling gnome-control-center. I have tried setting the environment variable to /run/user/XYZ. I have tried removing the path to the Anaconda runtime.
My system has an nvidia 1070 card, runs at 128 Gb RAM with some 6960-ish intel processor of about 10 physical cores. I cannot give exact details because the tool I usually use to show those is part of the gnome-control-center tools, and I cannot remember the details here. I have a mostly fresh install of Ubuntu GNOME 17.04. The exceptions are a few packages from the standard repository (Kile, KDevelop, cmake, gfortran, subversion, and a bunch more related to C++-programming and documentations of an extensive code-base with a bunch of computational libraries attached to it). I also have Anaconda, Google Chrome, and Dropbox from outside the repository installed.
(I am completely new to gnome-desktop because of the upcoming abandonment of unity, so I might be missing the most basic of information here --- I cannot even figure out how to show the date in the clock in the menu! --- so please start from low levels.)
Help is most welcome! I need to be able to change a few settings related to language settings.