That unveiled the issue, I had installed ricotz's ppa a while back and removed it after a few days but apparently the ppa was not completely purged. I added it again and purged it again and the package was properly downgraded and the missing key was added to the schema. Feel very noobish!
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1117637 Title: Brightness and Lock option in System Settings crashes because of glib's schema missing key Status in “gnome-control-center” package in Ubuntu: Incomplete Bug description: When launching the gnome-control-center and selecting the "Brightness and Lock" option the application crashes with the following error: (gnome-control-center:9686): GLib-GIO-ERROR **: Settings schema 'org.gnome.desktop.screensaver' does not contain a key named 'show-notifications' Trace/breakpoint trap (core dumped) Apparently the issue is simply resolved (or worked around) by editing the glib schema file org.gnome.desktop.screensaver.gschema.xml, adding the missing key that it is complaining about and recompiling the glib schemas. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1117637/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
