The lightdm locking facility is an unfinished work, and lack a proper
way to lock the session, it started at the begin of the cycle, and was a
bit forgotten later in the development. It's unfortunate that it went
into the release in this state.
That's said, the less invasive way I can see to "fix" it is to
completely remove the lightdm option in lxlock. However, it will break
the "Lock" button of lxsession-logout, which need another lock system by
default to work properly by default. But, no-one is currently ready
enough out-of-the-box to work as a replacement (xscreensaver need to be
start at startup, slock provide a not-user-friedly interface, light-
locker is out of universe, and gnome-screensaver is out of the
question). So, the only way is to just remove the "Lock" button to avoid
confusion. It will be still possible to lock the session if people use
lxlock and set-up the proper configuration.
I'm preparing a patched version of lxsession with those changes, so
people will be able to test it.
** Changed in: lxsession (Ubuntu)
Status: Confirmed => In Progress
** Changed in: lxsession (Ubuntu)
Assignee: (unassigned) => Julien Lavergne (gilir)
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https://bugs.launchpad.net/bugs/1205384
Title:
Lock can be circumvented by switching to console
Status in LXDE - Lightweight X11 Desktop Environment:
New
Status in “lightdm” package in Ubuntu:
Invalid
Status in “lxsession” package in Ubuntu:
In Progress
Bug description:
Steps to reproduce:
1)lock your screen using "dm-tool switch-to-greeter" or "dm-tool lock"
2)switch to console via ctrl+alt+F1
3)switch back to X via ctrl+alt+F7
Result: session is unlocked without entering a password
Expected behaviour:
session should still be locked when switching back to X
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: lightdm 1.7.7-0ubuntu2
ProcVersionSignature: Ubuntu 3.10.0-5.15-generic 3.10.2
Uname: Linux 3.10.0-5-generic i686
ApportVersion: 2.11-0ubuntu1
Architecture: i386
Date: Fri Jul 26 17:30:23 2013
InstallationDate: Installed on 2013-07-26 (0 days ago)
InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130723.1)
MarkForUpload: True
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
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