[Xfce-bugs] [Bug 13699] New: Logout dialog shows "Hibernate" despite logind saying it is not supported

[bugzilla-daemon at xfce.org]

https://bugzilla.xfce.org/show_bug.cgi?id=13699

            Bug ID: 13699
           Summary: Logout dialog shows "Hibernate" despite logind saying
                    it is not supported
    Classification: Xfce Core
           Product: Xfce4-session
           Version: 4.12.0
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: General
          Assignee: xfce-bugs at xfce.org
          Reporter: marcosfrm at gmail.com
        QA Contact: bjt23 at cornell.edu
                CC: benny at xfce.org, nick at xfce.org
  Target Milestone: Xfce 4.12

logind correctly says hibernation is not available:

$ gdbus call --system --dest org.freedesktop.login1 --object-path
/org/freedesktop/login1 --method org.freedesktop.login1.Manager.CanHibernate
('na',)
$ gdbus call --system --dest org.freedesktop.login1 --object-path
/org/freedesktop/login1 --method org.freedesktop.login1.Manager.CanHybridSleep
('na',)

When I try to hibernate from the dialog, xfsm-shutdown-helper crashes:

# coredumpctl -1 info
           PID: 533 (xfsm-shutdown-h)
           UID: 0 (root)
           GID: 0 (root)
        Signal: 11 (SEGV)
     Timestamp: Fri 2017-06-30 10:21:31 -03 (1min 43s ago)
  Command Line: /usr/lib/xfce4/session/xfsm-shutdown-helper --hibernate
    Executable: /usr/lib/xfce4/session/xfsm-shutdown-helper
 Control Group: /user.slice/user-1000.slice/session-c1.scope
          Unit: session-c1.scope
         Slice: user-1000.slice
       Session: c1
     Owner UID: 1000 (marcos)
       Boot ID: 7e4a0d5299294e78ac98d72c15080ffa
    Machine ID: 5e941632ec3847a3b48a6d428267b01d
      Hostname: arch
       Storage:
/var/lib/systemd/coredump/core.xfsm-shutdown-h.0.7e4a0d5299294e78ac98d72c15080ffa.533.1498828891000000000000.lz4
       Message: Process 533 (xfsm-shutdown-h) of user 0 dumped core.

                Stack trace of thread 533:
                #0  0x00007fb6085fc348 __libc_free (libc.so.6)
                #1  0x00007fb608959d72 g_error_free (libglib-2.0.so.0)
                #2  0x0000000000400d43 n/a (xfsm-shutdown-helper)
                #3  0x0000000000400b6e n/a (xfsm-shutdown-helper)
                #4  0x00007fb60859f43a __libc_start_main (libc.so.6)
                #5  0x0000000000400c4a n/a (xfsm-shutdown-helper)

I am running Arch, with xfce4-session 4.12.1-7, systemd 232-8.

Expected behaviour: do not show "Hibernate" button.

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