unity-panel-service not running in non-upstart-sessions on Saucy (including guest session)

[Carla Sella]

When changing to guest session on Saucy, you do not get the session gear indicator so to go back to a users session or logout or shutdown, all the indicators are missing in the top bar.
See attached screenshot.
The only way to get out of guest session once you are in, is CTRL+ALT+F1 and reboot on command line.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: lightdm 1.7.9-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-3.6-generic 3.11.0-rc6
Uname: Linux 3.11.0-3-generic x86_64
ApportVersion: 2.12.1-0ubuntu2
Architecture: amd64
Date: Tue Aug 20 19:41:01 2013
InstallationDate: Installed on 2013-03-28 (144 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130328)
LightdmConfig:
 [SeatDefaults]
 user-session=ubuntu
 type=unity
 greeter-session=unity-greeter
MarkForUpload: True
SourcePackage: lightdm
UpgradeStatus: Upgraded to saucy on 2013-05-19 (93 days ago)

[Carla Sella (carla-sella)]

Verified this happens both with Xmir and Xorg.

[Sebastien Bacher (seb128)]

thanks, that's an unity bug, you can use ctrl-alt-del to bring the logout dialog though

[Sebastien Bacher (seb128)]

Seems like the issue is that unity-panel-service is not running in guest session, those don't seem to use upstart...likely a bug there

[Sebastien Bacher (seb128)]

having it also affect lightdm, seems like DESKTOP_SESSION is not set in guest session, which leads to the issue

[Stephen M. Webb (bregma)]

Attatching a process status listing demontrating the problem.

[Stephen M. Webb (bregma)]

Further relevant information:

o Logging in with the Guest account from LightDM works OK
o Logging in with a user account works fine, then switching to the Guest account using the Gear indicator results in the described problem
o Logging in as Guest from LightDM then switching to the user account using the Gear indicator results in bug #1196314 and sometimes other indicator crashes, but otherwise works OK

[Robert Ancell (robert-ancell)]

Confirmed this is a regression in lightdm 1.7

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:lightdm at revision None, scheduled for release in lightdm, milestone Unknown

[Launchpad Janitor (janitor)]

This bug was fixed in the package lightdm - 1.7.18-0ubuntu1

---------------
lightdm (1.7.18-0ubuntu1) saucy; urgency=low

  * New upstream release:
    - Set session environment variables for guest sessions (1.7 regression).
      (LP: #1214504)
    - Don't fail writing X authority if reading it had an error. (LP: #1234400)
    - Update environment variables that we pass to Mir.
 -- Robert Ancell <email address hidden> Mon, 07 Oct 2013 11:57:02 +1300