[Bug 491940] Re: Patch for LTSP clients to properly reboot/shutdown

[Alessio Comai]

I installed an edubuntu 12.04 LTSP environment, but when I click "shutdown" on thin clients it does a logoff instead.
I tried to add 
deb http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu precise main 
deb-src http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu precise main 
to my repositories and dist-upgraded
It installed 4 packeges and 15 updates (including gnome-panel)
I needed to reconfigure dhcpd.conf to make pxe boot working... but nothing changes.

the only way to shut down them is the procedure described by John Hupp (or open an epoptes gui, shut down all clients with one click and then shut down the last one as usual).
Someone solved it on 12.04?

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https://bugs.launchpad.net/bugs/491940

Title:
  Patch for LTSP clients to properly reboot/shutdown

Status in “gnome-session” package in Ubuntu:
  Confirmed
Status in “ltsp” package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: gnome-session

  Please consider the following 4 lines for inclusion to debian/patch/95_dbus_request_shutdown.patch.
  Those lines make LTSP clients properly reboot/shutdown.

  
  gboolean
  gsm_manager_request_shutdown (GsmManager *manager,
                                GError    **error)
  {
          g_debug ("GsmManager: RequestShutdown called");

          g_return_val_if_fail (GSM_IS_MANAGER (manager), FALSE);

          if (manager->priv->phase != GSM_MANAGER_PHASE_RUNNING) {
                  g_set_error (error,
                               GSM_MANAGER_ERROR,
                               GSM_MANAGER_ERROR_NOT_IN_RUNNING,
                               "RequestShutdown interface is only available during the Running phase");
                  return FALSE;
          }

  +       if (g_getenv ("LTSP_CLIENT"))
  +               g_spawn_command_line_async("xprop -root -f LDM_LOGOUT_ACTION 8s -set LDM_LOGOUT_ACTION HALT", error);

          request_shutdown (manager);

          return TRUE;
  }

  gboolean
  gsm_manager_request_reboot (GsmManager *manager,
                              GError    **error)
  {
          g_debug ("GsmManager: RequestReboot called");

          g_return_val_if_fail (GSM_IS_MANAGER (manager), FALSE);

          if (manager->priv->phase != GSM_MANAGER_PHASE_RUNNING) {
                  g_set_error (error,
                               GSM_MANAGER_ERROR,
                               GSM_MANAGER_ERROR_NOT_IN_RUNNING,
                               "RequestReboot interface is only available during the Running phase");
                  return FALSE;
          }

  +        if (g_getenv ("LTSP_CLIENT"))
  +               g_spawn_command_line_async("xprop -root -f LDM_LOGOUT_ACTION 8s -set LDM_LOGOUT_ACTION REBOOT", error);

          request_reboot (manager);

          return TRUE;
  }

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