This bug was fixed in the package lightdm - 1.9.1-0ubuntu1
---------------
lightdm (1.9.1-0ubuntu1) trusty; urgency=low
* New upstream release:
- Correctly set $XDG_SESSION_CLASS for greeters. This was regressed in 1.7.5
for ConsoleKit and was never passed to logind. logind/ConsoleKit treat
greeter sessions without this set as user sessions. This causes greeters
to show the lightdm user able to be logged in with.
(LP: #1242939)
- Set $USER when running the session-setup-script. This is a regression from
1.7.5. (LP: #1245957)
- Fix notification of sessions being logged out. This is a regression from
1.7.5 and caused greeters to show sessions logged in after they had been
logged out. (LP: #1245295)
- Refactor liblightdm user scanning to be simpler and more reliable. This
fixes bugs where some properties wouldn't be updated when they changed in
accounts service.
- Add support for a "display-stopped-script" field in lightdm.conf. The
"display-stopped-script" field allows us to run a script right after
stopping the display server.
- Allow dm-tool to run outside of a session if it doesn't need to be.
- Set $MIR_SERVER_NAME to assign a name to launched sessions. Also use a
"greeter-" prefix for greeter sessions for the benefit of
unity-system-compositor.
-- Robert Ancell <[email protected]> Wed, 30 Oct 2013 14:11:16
-0700
** Changed in: lightdm (Ubuntu Trusty)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1242939
Title:
Greeter shows "LightDM" user due to XDG_SESSION_CLASS not being
provided to logind or ConsoleKit
Status in Light Display Manager:
Fix Released
Status in Light Display Manager 1.8 series:
Fix Released
Status in Light Display Manager 1.9 series:
Fix Released
Status in “lightdm” package in Ubuntu:
Fix Released
Status in “lightdm” source package in Saucy:
In Progress
Status in “lightdm” source package in Trusty:
Fix Released
Bug description:
XDG_SESSION_CLASS not provided to logind or ConsoleKit.
The ConsoleKit support was regressed in 1.7.5 and it's never been
passed to logind.
Without the greeter being marked as a "greeter" class both logind and
ConsoleKit consider it an open session that must be logged out of
before you can shutdown.
This cases AccountsService to report this user and it is shown in
greeters.
To reproduce:
1. Boot to Unity Greeter
2. Log into guest account
3. Log out of guest account
Expected result:
Greeter shows user list same as before login
Observed result:
A new user is added - "Light Display Manager"
Regression potential:
This variable has not been set when using logind in Ubuntu so a low risk of
other subtle behaviour changes.
To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1242939/+subscriptions
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