[X2Go-User] Can't resume session on RHEL6 system properly

[John Stoffel]

Guys,
I've got an x2go session where it looks like there's some disagreement
internally between what the state really is on the system.  I'm seeing
the following messages in the /var/log/messages file:

   Jul 12 22:51:58 x2go-server /usr/sbin/x2gocleansessions[3243]: john-50-1498570300_stDGNOME_dp24: session status S desynchronized with current status (R) and session suspend already tried unsuccessfully
   Jul 12 22:52:12 x2go-server /usr/bin/x2gosuspend-session: session with ID john-50-1498570300_stDGNOME_dp24 has been suspended successfully
   Jul 12 22:52:30 x2go-server /usr/bin/x2gosuspend-session: session with ID john-50-1498570300_stDGNOME_dp24 has been suspended successfully
   Jul 12 22:52:49 x2go-server /usr/bin/x2gosuspend-session: session with ID john-50-1498570300_stDGNOME_dp24 has been suspended successfully
   Jul 12 22:53:08 x2go-server /usr/bin/x2gosuspend-session: session with ID john-50-1498570300_stDGNOME_dp24 has been suspended successfully
   Jul 12 22:53:28 x2go-server /usr/bin/x2gosuspend-session: session with ID john-50-1498570300_stDGNOME_dp24 has been suspended successfully
   Jul 12 22:53:47 x2go-server /usr/bin/x2gosuspend-session: session with ID john-50-1498570300_stDGNOME_dp24 has been suspended successfully
   Jul 12 22:54:06 x2go-server /usr/bin/x2gosuspend-session: session with ID john-50-1498570300_stDGNOME_dp24 has been suspended successfully


Note the first line?  Where is says the session status is desynchronized?  How would I fix this?

The server is running CentOS 6.9 (Final) x86_64:

   # rpm -qa |grep x2go
   x2goclient-4.0.1.4-1.el6.x86_64
   x2goserver-4.0.1.20-1.el6.x86_64
   x2golxdebindings-debuginfo-1.0.2.4-1.1.x86_64
   x2goserver-xsession-4.0.1.20-1.el6.x86_64
   python-x2go-0.5.0.3-1.el6.noarch
   x2goagent-3.5.0.32-3.1.x86_64
   x2gognomebindings-2.0.2.1-2.1.x86_64


And my client in a Linux Mint 18.2 x86_64 system with:

    > dpkg-query -l |grep x2go
    ii  nxproxy                                                  2:3.5.0.32-0x2go1+git20170412.734+8.main.1 amd64        NX proxy
    ii  pyhoca-cli                                               0.5.0.3-0x2go1+git20170412.224+8.main.1    all          Command line X2Go client written in Python
    ii  pyhoca-gui                                               0.5.0.6-0x2go1+git20170413.1337+8.main.1   all          Graphical X2Go client written in (wx)Python
    ii  python-x2go                                              0.5.0.4-1                                  all          Python module providing X2Go client API
    ii  x2go-keyring                                             2012.07.23~jessie~main~17~build1           all          GnuPG keys of all X2Go developers and the X2Go archive
    ii  x2goclient                                               4.1.0.0-0x2go1+git20170413.1549+8.main.1   amd64        X2Go Client application (Qt4)


Now if I go and sit at the x2go-server system, and use the x2goclient
to connect to the session, it's pretty much going to work, though
sometimes it still fails and I need to wipe my working session.  Which
sucks.

I also see, on the client system the following in the file:

   $ cat ~/.x2go/S-john-50-1498570300_stDGNOME_dp24/sessions
   Loop: WARNING! Unrecognized session type 'unix-kde-depth_24'. Assuming agent session.
   Loop: WARNING! Unrecognized session type 'unix-kde-depth_24'. Assuming agent session.
   Loop: PANIC! The remote NX proxy closed the connection.
   Loop: PANIC! Failure negotiating the session in stage '7'.
   Loop: PANIC! Wrong version or invalid session authentication cookie.


But I never use kde as my session, and it's configured to use GNOME
only.  I've never used KDE at all, except to run their great CD buring
tool k3db at points.

What other debug info can I provide?

Thanks,
John