I have almost the same problem (with xmonad instead of i3) after my upgrade from ubuntu 14.04 to 15.04. However sudo gnome-control-center doesn't work either. env | grep XDG_CURRENT_DESKTOP doesn't return anything.
env | grep xmonad gives: DESKTOP_SESSION=xmonad MANDATORY_PATH=/usr/share/gconf/xmonad.mandatory.path DEFAULTS_PATH=/usr/share/gconf/xmonad.default.path XDG_SESSION_DESKTOP=xmonad GDMSESSION=xmonad XDG_CONFIG_DIRS=/etc/xdg/xdg-xmonad:/etc/xdg XDG_DATA_DIRS=/usr/share/xmonad:/usr/local/share/:/usr/share/ I tried DESKTOP_SESSION=gnome; XDG_SESSION_DESKTOP=gnome; GDMSESSION=gnome; gnome-control-center without success. -- 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/1353480 Title: Most settings panels suddenly missing from gnome-control-center Status in gnome-control-center package in Ubuntu: Confirmed Bug description: When I launch it from my default (non-root) user account, the gnome-control-center is missing all settings panels, except "Printers" and "Software & Updates". Launching it with a commandline parameter to open a specific settings panel fails, too: $ gnome-control-center display ** (gnome-control-center.real:10217): WARNING **: Could not find settings panel "display" I can only access the panels that aren't listed by launching gnome- control-center as root. I previously had access to the panels that are now only displayed for root, but I can't pinpoint what caused them to vanish. Is there anything I could do to find and fix whatever caused this? I have already reported this bug on bugzilla.gnome.org[1], but apparently version 3.6.3 of the gnome-control-center is no longer supported by the GNOME developers and neither are Ubuntu's patched versions of it. [1]: https://bugzilla.gnome.org/show_bug.cgi?id=734349 I'm using Ubuntu GNOME 14.04 with i3 as my window manager, but with the gnome-settings-daemon running to handle keyboard shortcuts and display configuration. $ lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 $ apt-cache policy gnome-control-center gnome-control-center: Installed: 1:3.6.3-0ubuntu56.1 Candidate: 1:3.6.3-0ubuntu56.1 Version table: *** 1:3.6.3-0ubuntu56.1 0 500 http://de.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:3.6.3-0ubuntu56 0 500 http://de.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1353480/+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
