[X2Go-User] nxagent

Robert Kudyba rkudyba at fordham.edu
Tue Mar 6 15:23:27 CET 2018


Why not just disable DPMS (Display Power Management Signaling) support?
https://github.com/ArcticaProject/nx-libs/issues/671#issuecomment-370715419

So a command like: /usr/bin/xset -dpms s off s noblank s 0 0 s noexpose
-dpms

On Tue, Mar 6, 2018 at 9:03 AM, Mario Theodoridis <mario at schmut.com> wrote:

> On 06/03/18 14:18, martti pitkanen wrote:
>
> Hi,
>
> Is there hands-on instructions how to downgrade to Saimaa in Ubuntu
> (4.13.0-)?
> X2Go sessions terminate in random way.
>
> Yes.
>
> This is what i just did more or less following Stefans advice.
>
>
> sudo mv x2go-stable-trusty.list x2go-stable-trusty.list.not
> sudo add-apt-repository ppa:x2go/saimaa
> sudo apt-get update
>
> sudo apt-get remove libnx-x11-6:i386 nxagent nxproxy nx-x11-common
> x2goclient x2goserver* libx2go-log-perl libx2go-server-db-perl
> libx2go-server-perl libxcomp3:i386 libxcompshad3:i386
> sudo apt-get install x2goserver x2goserver-xsession
>
> This leaves me with
>
>  dpkg -l | egrep "(x2go|nx)" | sort
> ii  libjs-sphinxdoc
> 1.2.2+dfsg-1ubuntu1.1                        all          JavaScript
> support for Sphinx documentation
> ii  libnx-x11-6:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11
> client-side library
> ii  libnx-xcomposite1:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11
> Composite extension library
> ii  libnx-xdamage1:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11 damaged
> region extension library
> ii  libnx-xdmcp6:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11 Display
> Manager Control Protocol library
> ii  libnx-xext6:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11
> miscellaneous extension library
> ii  libnx-xfixes3:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11
> miscellaneous 'fixes' extension library
> ii  libnx-xinerama1:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11 Xinerama
> extension library
> ii  libnx-xpm4:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11 pixmap
> library
> ii  libnx-xrandr2:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11 RandR
> extension library
> ii  libnx-xrender1:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11
> Rendering Extension client library
> ii  libnx-xtst6:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11 Testing
> -- Record extension library
> ii  libxcomp3:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11
> compression library
> ii  libxcompext3:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11 protocol
> compression extensions library
> ii  libxcompshad3:i386
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         nx-X11
> shadowing library
> ii  nxagent
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      i386         NX agent
> ii  nx-x11-common
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      all          nx-X11 (common
> files)
> ii  qtcreator-plugin-qnx:i386
> 3.0.1+14.04.20140410.1-0ubuntu1              i386         QNX plugin for
> Qt Creator IDE
> ii  x2goagent
> 2:3.5.0.33-0~201711080756~ubuntu14.04.1      all          X2Go agent
> ii  x2goserver
> 4.0.1.21-0~201711081403~ubuntu14.04.1        i386         X2Go server
> daemon scripts
> ii  x2goserver-extensions
> 4.0.1.21-0~201711081403~ubuntu14.04.1        all          X2Go server
> daemon scripts (extensions)
> ii  x2goserver-xsession
> 4.0.1.21-0~201711081403~ubuntu14.04.1        all          X2Go server
> daemon scripts (Xsession runner)
> rc  libx2go-server-db-perl
> 4.1.0.0-0~1517~ubuntu14.04.1                 i386         Perl
> X2Go::Server:DB package
> rc  x2goclient
> 4.1.1.1-0~1719~ubuntu14.04.1                 i386         X2Go Client
> application (Qt4)
> rc  x2goserver-common
> 4.1.0.0-0~1517~ubuntu14.04.1                 i386         X2Go Server
> (common files)
> rc  x2goserver-fmbindings
> 4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go Server
> (file manager bindings)
> rc  x2goserver-printing
> 4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go server
> (printing support)
> rc  x2goserver-x2goagent
> 4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go Server's
> X2Go Agent
>
> Unfortunately i can no longer connect. It connects then disconnects.
> This is the session log
>
> $ cat /tmp/.x2go-mario/C-mario-56-1520344207_stDKDE_dp24/session.log
>
> running as X2Go Agent
>
> NXAGENT - Version 3.5.0
>
> Copyright (C) 2001, 2011 NoMachine.
> See http://www.nomachine.com/
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.nomachine.com_&d=DwMDaQ&c=aqMfXOEvEJQh2iQMCb7Wy8l0sPnURkcqADc2guUW8IM&r=X0jL9y0sL4r4iU_qVtR3lLNo4tOL1ry_m7-psV3GejY&m=QIgSLcrrTCJMhj7NUXO5ONPfj88R2_ITBC9GBjYBhPs&s=2u4IUoHqO415txvlxTBJsjNODklSt7ma_Uv3dIAYYxU&e=>
> for more information.
>
> Info: Agent running with pid '6173'.
> Session: Starting session at 'Tue Mar  6 14:50:08 2018'.
> Info: Proxy running in server mode with pid '6173'.
> Info: Waiting for connection from 'localhost' on port '52991'.
> Info: Accepted connection from '127.0.0.1'.
> Info: Connection with remote proxy completed.
> Info: Using WAN link parameters 1408/24/1/0.
> Info: Using agent parameters 5000/5/50/0/0.
> Info: Using cache parameters 4/4096KB/8192KB/8192KB.
> Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_24'.
> Info: Using ZLIB data compression 1/1/32.
> Info: Using ZLIB stream compression 1/1.
> Info: No suitable cache file found.
> Info: Listening to X11 connections on display ':56'.
> Error: Aborting session with 'Unable to open display
> 'nx/nx,options=/tmp/.x2go-mario/C-mario-56-1520344207_
> stDKDE_dp24/options:56''.
> Session: Aborting session at 'Tue Mar  6 14:50:09 2018'.
> Session: Session aborted at 'Tue Mar  6 14:50:09 2018'.
> Warning: Signals were not blocked in process with pid '6173'.
> Info: Your session has died before reaching an usable state.
> Info: This can be due to the remote X server refusing access to the client.
> Info: Please check the authorization provided by your X application.
> Info: Waiting the cleanup timeout to complete.
>
> Other logs have the following:
>
> $ sudo xtail /var/log/syslog /var/log/auth.log /var/log/ConsoleKit/history
> *** /var/log/auth.log ***
> Mar  6 14:50:04 lindev sshd[5665]: Accepted password for mario from
> 192.168.11.6 port 35874 ssh2
> Mar  6 14:50:04 lindev sshd[5665]: pam_unix(sshd:session): session opened
> for user mario by (uid=0)
>
> *** /var/log/syslog ***
> Mar  6 14:50:04 lindev console-kit-daemon[2143]: GLib-CRITICAL: Source ID
> 64 was not found when attempting to remove it
>
> *** /var/log/ConsoleKit/history ***
> 1520344204.337 type=SEAT_ADDED : seat-id='Seat6' seat-kind=1
> 1520344204.339 type=SEAT_SESSION_ADDED : seat-id='Seat6'
> session-id='Session5' session-type='' session-x11-display=''
> session-x11-display-device='' session-display-device='/dev/ssh'
> session-remote-host-name='fatty.de.regify.com' session-is-local=FALSE
> session-unix-user=1000 session-creation-time='2018-03-06T13:50:04.336908Z'
> 1520344204.512 type=SEAT_ADDED : seat-id='Seat7' seat-kind=1
> 1520344204.514 type=SEAT_SESSION_ADDED : seat-id='Seat7'
> session-id='Session6' session-type='' session-x11-display=''
> session-x11-display-device='' session-display-device='/dev/pts/2'
> session-remote-host-name='fatty.de.regify.com' session-is-local=FALSE
> session-unix-user=1000 session-creation-time='2018-03-06T13:50:04.512161Z'
> 1520344204.519 type=SEAT_SESSION_REMOVED : seat-id='Seat7'
> session-id='Session6' session-type='' session-x11-display=''
> session-x11-display-device='' session-display-device='/dev/pts/2'
> session-remote-host-name='fatty.de.regify.com' session-is-local=FALSE
> session-unix-user=1000 session-creation-time='2018-03-06T13:50:04.512161Z'
> 1520344204.520 type=SEAT_REMOVED : seat-id='Seat7' seat-kind=1
>
> *** /var/log/syslog ***
> Mar  6 14:50:08 lindev /usr/bin/x2gostartagent: successfully started X2Go
> agent session with ID mario-56-1520344207_stDKDE_dp24
> Mar  6 14:50:13 lindev console-kit-daemon[2143]: GLib-CRITICAL: Source ID
> 57 was not found when attempting to remove it
>
> *** /var/log/auth.log ***
> Mar  6 14:50:13 lindev sshd[5720]: Received disconnect from 192.168.11.6:
> 11: Bye Bye
> Mar  6 14:50:13 lindev sshd[5665]: pam_unix(sshd:session): session closed
> for user mario
>
> *** /var/log/ConsoleKit/history ***
> 1520344213.470 type=SEAT_SESSION_REMOVED : seat-id='Seat6'
> session-id='Session5' session-type='' session-x11-display=''
> session-x11-display-device='' session-display-device='/dev/ssh'
> session-remote-host-name='fatty.de.regify.com' session-is-local=FALSE
> session-unix-user=1000 session-creation-time='2018-03-06T13:50:04.336908Z'
> 1520344213.470 type=SEAT_REMOVED : seat-id='Seat6' seat-kind=1
>
>
> Somehow i believe this is system related to my box rather than packaging,
> but i somehow can't put my finger on it.
> Anybody see anything i overlooked?
>
> --
> Mit freundlichen Grüßen/Kind regards
>
> Mario Theodoridis
>
>
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