Bug#746329: gnome-control-center: unlock greyed out: can't make system changes

[Drew Parsons]

Package: gnome-control-center
Version: 1:3.12.1-3
Severity: normal

In the Gnome 3.12 control centre, the Unlock button is greyed out in
Printers as well as Date & Time, Users.  This means I cannot add new
printers or reconfigure existing ones, can't change the Time settings,
can't add new users.   My own user account is listed as
"Administrator", so I would expect to be able to change these settings
(and previously could under Gnome 3.8). 

Is there some new dependency for Gnome 3.12 that gnome-control-center
needs to depend on?


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.13-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gnome-control-center depends on:
ii  accountsservice            0.6.37-1
ii  apg                        2.2.3.dfsg.1-2
ii  colord                     1.0.6-1
ii  desktop-file-utils         0.22-1
ii  gnome-control-center-data  1:3.12.1-3
ii  gnome-desktop3-data        3.12.1-1
ii  gnome-icon-theme           3.12.0-1
ii  gnome-icon-theme-symbolic  3.12.0-1
ii  gnome-menus                3.8.0-2
ii  gnome-settings-daemon      3.12.0-1
ii  gsettings-desktop-schemas  3.12.0-1
ii  libaccountsservice0        0.6.37-1
ii  libatk1.0-0                2.12.0-1
ii  libc6                      2.18-5
ii  libcairo2                  1.12.16-2
ii  libcanberra-gtk3-0         0.30-2
ii  libcanberra0               0.30-2
ii  libcheese-gtk23            3.12.0-1
ii  libcheese7                 3.12.0-1
ii  libclutter-1.0-0           1.18.2-1
ii  libclutter-gtk-1.0-0       1.5.2-1
ii  libcolord-gtk1             0.1.25-1.1
ii  libcolord1                 1.0.6-1
ii  libcups2                   1.7.2-1
ii  libdbus-glib-1-2           0.102-1
ii  libfontconfig1             2.11.0-5
ii  libgdk-pixbuf2.0-0         2.30.7-1
ii  libgl1-mesa-glx [libgl1]   10.1.1-1
ii  libglib2.0-0               2.40.0-3
ii  libgnome-bluetooth13       3.12.0-1
ii  libgnome-desktop-3-10      3.12.1-1
ii  libgoa-1.0-0b              3.12.1-1
ii  libgoa-backend-1.0-1       3.12.1-1
ii  libgrilo-0.2-1             0.2.10-1
ii  libgtk-3-0                 3.12.1-1
ii  libgtop2-7                 2.28.5-2
ii  libibus-1.0-5              1.5.5-1
ii  libkrb5-3                  1.12.1+dfsg-1
ii  libmm-glib0                1.0.0-4
ii  libnm-glib-vpn1            0.9.8.10-1
ii  libnm-glib4                0.9.8.10-1
ii  libnm-gtk0                 0.9.8.8-5
ii  libnm-util2                0.9.8.10-1
ii  libpango-1.0-0             1.36.3-1
ii  libpangocairo-1.0-0        1.36.3-1
ii  libpolkit-gobject-1-0      0.105-4
ii  libpulse-mainloop-glib0    5.0-2
ii  libpulse0                  5.0-2
ii  libpwquality1              1.2.3-1
ii  libsmbclient               2:4.1.7+dfsg-2
ii  libsoup2.4-1               2.46.0-2
ii  libupower-glib2            0.99.0-2
ii  libwacom2                  0.8-1
ii  libx11-6                   2:1.6.2-1
ii  libxi6                     2:1.7.2-1
ii  libxml2                    2.9.1+dfsg1-3

Versions of packages gnome-control-center recommends:
ii  cups-pk-helper         0.2.5-2
ii  gkbd-capplet           3.6.0-1
ii  gnome-online-accounts  3.12.1-1
ii  gnome-user-guide       3.8.2-1
ii  gnome-user-share       3.8.3-1
ii  iso-codes              3.52-1
ii  libnss-myhostname      0.3-6
ii  mesa-utils             8.1.0-2+b1
ii  mousetweaks            3.12.0-1
ii  network-manager-gnome  0.9.8.8-5
ii  ntp                    1:4.2.6.p5+dfsg-3
ii  policykit-1-gnome      0.105-2
ii  rygel                  0.20.3-1
ii  system-config-printer  1.4.3-4

Versions of packages gnome-control-center suggests:
ii  gstreamer1.0-pulseaudio  1.2.4-1
ii  libcanberra-gtk-module   0.30-2
ii  libcanberra-gtk3-module  0.30-2
ii  x11-xserver-utils        7.7+2

-- no debconf information