There are no error in 18.10, it seems similar to
https://gitlab.gnome.org/GNOME/gnome-control-center/issues/93 which was
fixed there
** Changed in: gnome-control-center (Ubuntu)
Status: Triaged => Fix Released
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Bugs,
** Changed in: gnome-control-center
Status: Unknown => Confirmed
** Changed in: gnome-control-center
Importance: Unknown => Medium
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https://bugs.launchpad.net/bugs/1729968
The stacktrace matches https://bugzilla.gnome.org/show_bug.cgi?id=756973
which upstream has marked as duplicate of
https://bugzilla.gnome.org/show_bug.cgi?id=74 which is a segfault
when n-m is restarted
** Changed in: gnome-control-center (Ubuntu)
Importance: Undecided => Low
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