[Bug 1242273] [NEW] ck-list-sessions no longer prints anything

[DAP]

Public bug reported:

I was using ck-list-sessions in a script to determine if anyone was presently logged in.
After upgrading to Ubuntu 13.10 the script stopped functioning.
I tracked the failure down to ck-list-sessions not outputting anything.

When I run it from a terminal, this is what I get:
$ ck-list-sessions
$ 

There really needs to be a reliable way to determine if a user is logged
in. It seems this breaks with every version of Ubuntu, and I need to
figure out a new way to do it every time.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: consolekit 0.4.5-3.1ubuntu2
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
Date: Sun Oct 20 00:49:00 2013
InstallationDate: Installed on 2011-05-22 (881 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MarkForUpload: True
SourcePackage: consolekit
UpgradeStatus: Upgraded to saucy on 2013-10-19 (0 days ago)

** Affects: consolekit (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug saucy

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https://bugs.launchpad.net/bugs/1242273

Title:
  ck-list-sessions no longer prints anything

Status in “consolekit” package in Ubuntu:
  New

Bug description:
  I was using ck-list-sessions in a script to determine if anyone was presently logged in.
  After upgrading to Ubuntu 13.10 the script stopped functioning.
  I tracked the failure down to ck-list-sessions not outputting anything.

  When I run it from a terminal, this is what I get:
  $ ck-list-sessions
  $ 

  There really needs to be a reliable way to determine if a user is
  logged in. It seems this breaks with every version of Ubuntu, and I
  need to figure out a new way to do it every time.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: consolekit 0.4.5-3.1ubuntu2
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: amd64
  Date: Sun Oct 20 00:49:00 2013
  InstallationDate: Installed on 2011-05-22 (881 days ago)
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  MarkForUpload: True
  SourcePackage: consolekit
  UpgradeStatus: Upgraded to saucy on 2013-10-19 (0 days ago)

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