Bug#646075: gdm3's greeter can be moved into unusable locations

[Daniel Kahn Gillmor]

Package: gdm3
Version: 3.0.4-3
Severity: normal

It appears to be possible to move the gdm3 greeter into an unusable
position on the screen:

 * hold down alt, and right-click on the greeter.

 * choose "move" from the menu that pops up

 * move the greeter to the corner of the screen so nothing is visible
   by dragging the mouse.

Now, when someone tries to log into the machine, they won't be able to
find the place to enter a username or password.

This is particularly problematic for a lab setting, where one person
can (without authenticating themselves at all) leave the machine in an
on but unusable state.

I suspect that the greeter window should not be movable at all.

  --dkg

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: powerpc (ppc)

Kernel: Linux 3.0.0-2-powerpc
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gdm3 depends on:
ii  accountsservice                             0.6.15-1  
ii  adduser                                     3.113     
ii  dconf-gsettings-backend                     0.7.5-3   
ii  debconf [debconf-2.0]                       1.5.41    
ii  gconf2                                      2.32.4-1  
ii  gnome-session [x-session-manager]           3.0.2-3   
ii  gnome-session-bin                           3.0.2-3   
ii  gnome-session-fallback [x-session-manager]  3.0.2-3   
ii  gnome-terminal [x-terminal-emulator]        3.0.1-1   
ii  gsettings-desktop-schemas                   3.0.1-1   
ii  libaccountsservice0                         0.6.15-1  
ii  libatk1.0-0                                 2.2.0-2   
ii  libattr1                                    1:2.4.46-3
ii  libaudit0                                   1.7.18-1  
ii  libc6                                       2.13-21   
ii  libcairo-gobject2                           1.10.2-6.1
ii  libcairo2                                   1.10.2-6.1
ii  libcanberra-gtk3-0                          0.28-2    
ii  libcanberra0                                0.28-2    
ii  libdbus-1-3                                 1.4.16-1  
ii  libdbus-glib-1-2                            0.98-1    
ii  libfontconfig1                              2.8.0-3   
ii  libfreetype6                                2.4.6-2   
ii  libgconf2-4                                 2.32.4-1  
ii  libgdk-pixbuf2.0-0                          2.24.0-1  
ii  libglib2.0-0                                2.28.8-1  
ii  libglib2.0-bin                              2.28.8-1  
ii  libgtk-3-0                                  3.0.12-2  
ii  libpam-modules                              1.1.3-4   
ii  libpam-runtime                              1.1.3-4   
ii  libpam0g                                    1.1.3-4   
ii  libpango1.0-0                               1.29.4-2  
ii  librsvg2-common                             2.34.1-2  
ii  libselinux1                                 2.1.0-1   
ii  libupower-glib1                             0.9.14-1  
ii  libwrap0                                    7.6.q-21  
ii  libx11-6                                    2:1.4.4-2 
ii  libxau6                                     1:1.0.6-3 
ii  libxdmcp6                                   1:1.1.0-3 
ii  libxklavier16                               5.1-2     
ii  libxrandr2                                  2:1.3.2-2 
ii  lsb-base                                    3.2-28    
ii  metacity [x-window-manager]                 1:2.34.1-1
ii  openbox [x-window-manager]                  3.5.0-1   
ii  policykit-1-gnome                           0.102-2   
ii  rxvt-unicode [x-terminal-emulator]          9.12-1    
ii  upower                                      0.9.14-1  
ii  xterm [x-terminal-emulator]                 276-1     

Versions of packages gdm3 recommends:
ii  at-spi                 1.32.0-1      
ii  desktop-base           6.0.7         
ii  gnome-icon-theme       3.2.1.2-1     
ii  gnome-power-manager    3.0.2-2       
ii  gnome-settings-daemon  3.0.3-3       
ii  x11-xkb-utils          7.6+4         
ii  xserver-xephyr         2:1.11.1.901-1
ii  xserver-xorg           1:7.6+9       
ii  zenity                 3.2.0-1       

Versions of packages gdm3 suggests:
ii  gnome-mag             <none>    
ii  gnome-orca            <none>    
ii  gok                   <none>    
ii  libpam-gnome-keyring  3.0.3-2   
ii  metacity              1:2.34.1-1

-- Configuration Files:
/etc/gdm3/daemon.conf changed:
[daemon]
AutomaticLoginEnable = true
AutomaticLogin = consoleuser
[security]
[xdmcp]
[greeter]
[chooser]
[debug]


-- debconf information:
* shared/default-x-display-manager: gdm3
  gdm3/daemon_name: /usr/sbin/gdm3