Public bug reported:
Binary package hint: gnome-screensaver
Ubuntu 10.10 fresh install
I created a new user and then executed the command
sudo passwd -d {username}
which deletes the user's password. In the Users and Groups utility,
beside "Password" it correctly says "None", however the user is still
able to lock their session (e.g. with the screen saver or user
switching) and therefore you cannot unlock it since the user has no
password.
I propose that the session locker should check whether or not the user
has a password, and if not, unlock the session automatically. I believe
that this is also what was causing Bug #439068, so possibly the fix
there could work as well by preventing the session from locking all
together if a user has no password.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: gnome-screensaver 2.30.0-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-23.37-generic 2.6.35.7
Uname: Linux 2.6.35-23-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Tue Nov 16 09:12:35 2010
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
LANGUAGE=en
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: gnome-screensaver
Symptom: security
Title: Screen locking issue
WindowManager: gnome-wm
** Affects: gnome-screensaver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 maverick
--
Passwordless users are prompted for their password when the screen locks
https://bugs.launchpad.net/bugs/674563
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