Current version is 3.5.99.26. Please retry with that version. See https://github.com/ArcticaProject/nx-libs#binary-builds where to find it if it does not come with your distribution.

Java applications have always been special so it might be necessary to switch to xrender or fake the window manager. Please check this mailing list for a posting of mine from around 2-3 weeks ago where I listed the possibilities.

Uli

Thackeray, Neil L <neilt@illinois.edu> schrieb am Di., 6. Juli 2021, 19:05:

NXAGENT - Version 3.5.99.19

It’s giving me a error 51 (The connection with the server was shut down) on the client end. When I look on the server after getting kicked out with an error 51, there is no session running.

*From:* Ulrich Sibiller <uli42@gmx.de> *Sent:* Tuesday, July 6, 2021 11:52 AM *To:* Thackeray, Neil L <neilt@illinois.edu> *Cc:* x2go users <x2go-user@lists.x2go.org> *Subject:* Re: [X2Go-User] Crashing X2Go When Launching Java

Well, I do see any java related hint in the log. Is the session really crashing or just disconnecting?

What's your version of nxagent on the server?

Uli

Thackeray, Neil L <neilt@illinois.edu> schrieb am Di., 6. Juli 2021, 18:23:

We are having problems with X2Go crashing whenever a java application launches. The behavior we’ve seen this with are Matlab and Libre Office. The error log for a session is below:

XSession-x2go: X session started for foo at Tue 06 Jul 2021 10:56:11 AM CDT

dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-ZYRSF8zvwo,guid=5029f305c229ae890543984260e47d1b

dbus-update-activation-environment: setting DISPLAY=:51

dbus-update-activation-environment: setting XAUTHORITY=/home/foo/.Xauthority

dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1

xhost: must be on local machine to add or remove hosts.

localuser:foo being added to access control list

dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge

dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1

dbus-update-activation-environment: setting QT_ACCESSIBILITY=1

dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1

dbus-update-activation-environment: setting SHELL=/bin/bash

dbus-update-activation-environment: setting QT_ACCESSIBILITY=1

dbus-update-activation-environment: setting SSH_AUTH_SOCK=/home/foo/.x2go/C-foo-51-1625586962_stDXFCE_dp32/ssh-agent.PID

dbus-update-activation-environment: setting STARTUP=/usr/bin/env LD_LIBRARY_PATH= xfce4-session

dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge

dbus-update-activation-environment: setting KRB5CCNAME=FILE:/tmp/krb5cc_30106_1IvBkz

dbus-update-activation-environment: setting PWD=/home/foo

dbus-update-activation-environment: setting LOGNAME=foo

dbus-update-activation-environment: setting XDG_SESSION_TYPE=tty

dbus-update-activation-environment: setting GPG_AGENT_INFO=/run/user/30106/gnupg/S.gpg-agent:0:1

dbus-update-activation-environment: setting XAUTHORITY=/home/foo/.Xauthority

dbus-update-activation-environment: setting X2GO_SESSION=foo-51-1625586962_stDXFCE_dp32

dbus-update-activation-environment: setting HOME=/home/foo

dbus-update-activation-environment: setting LANG=en_US.UTF-8

dbus-update-activation-environment: setting PULSE_CLIENTCONFIG=/home/foo/.x2go/C-foo-51-1625586962_stDXFCE_dp32/.pulse-client.conf

dbus-update-activation-environment: setting SSH_CONNECTION=192.168.2.235 56888 192.168.1.3 22

dbus-update-activation-environment: setting QT_GRAPHICSSYSTEM=native

dbus-update-activation-environment: setting XDG_SESSION_CLASS=user

dbus-update-activation-environment: setting TERM=dumb

dbus-update-activation-environment: setting X2GO_AGENT_PID=41248

dbus-update-activation-environment: setting USER=foo

dbus-update-activation-environment: setting DISPLAY=:51

dbus-update-activation-environment: setting SHLVL=2

dbus-update-activation-environment: setting XDG_RUNTIME_DIR=/run/user/30106

dbus-update-activation-environment: setting SSH_CLIENT=192.168.2.235 56888 22

dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/local/share:/usr/share:/var/lib/snapd/desktop

dbus-update-activation-environment: setting PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/snap/bin

dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-ZYRSF8zvwo,guid=5029f305c229ae890543984260e47d1b

dbus-update-activation-environment: setting MAIL=/var/mail/foo

dbus-update-activation-environment: setting XSESSION_EXEC=xfce4-session

dbus-update-activation-environment: setting _=/usr/bin/dbus-update-activation-environment

dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1

Gtk-Message: 10:56:12.094: Failed to load module "atk-bridge"

gpg-agent[41537]: WARNING: "--write-env-file" is an obsolete option - it has no effect

gpg-agent: a gpg-agent is already running - not starting a new one

(xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.146: gpg-agent returned no PID in the variables

Gtk-Message: 10:56:12.164: Failed to load module "atk-bridge"

(xfwm4:41539): xfwm4-WARNING **: 10:56:12.190: The display does not support the XComposite extension.

(xfwm4:41539): xfwm4-WARNING **: 10:56:12.190: Compositing manager disabled.

(xfwm4:41539): xfwm4-WARNING **: 10:56:12.251: Error opening /dev/dri/card0: Permission denied

Gtk-Message: 10:56:12.421: Failed to load module "atk-bridge"

Gtk-Message: 10:56:12.426: Failed to load module "atk-bridge"

Gtk-Message: 10:56:12.436: Failed to load module "atk-bridge"

(xfsettingsd:41565): xfsettingsd-CRITICAL **: 10:56:12.456: Your XI is too old (1.3) version 1.4 is required.

Gtk-Message: 10:56:12.457: Failed to load module "atk-bridge"

(xfsettingsd:41565): xfsettingsd-CRITICAL **: 10:56:12.458: Failed to change the keyboard repeat

Gtk-Message: 10:56:12.464: Failed to load module "atk-bridge"

(xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.554: Unable to launch "light-locker" (specified by autostart/light-locker.desktop): Failed to execute child process “light-locker” (No such file or directory)

(xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.557: Unable to launch "system-config-printer-applet" (specified by autostart/print-applet.desktop): Failed to execute child process “system-config-printer-applet” (No such file or directory)

(xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.563: Unable to launch "nm-applet" (specified by autostart/nm-applet.desktop): Failed to execute child process “nm-applet” (No such file or directory)

Gtk-Message: 10:56:12.584: Failed to load module "atk-bridge"

Gtk-Message: 10:56:13.282: Failed to load module "atk-bridge"

Gtk-Message: 10:56:13.286: Failed to load module "atk-bridge"

Failure: Module initialization failed

ERROR: Unable to load info from any available system

** (xfce4-clipman:47166): WARNING **: 10:58:47.786: Unable to register GApplication: An object is already exported for the interface org.gtk.Application at /org/xfce/clipman

(xfce4-clipman:47166): GLib-GIO-CRITICAL **: 10:58:47.786: g_application_get_is_remote: assertion 'application->priv->is_registered' failed

(xfce4-clipman:47166): GLib-WARNING **: 10:58:47.786: g_set_application_name() called multiple times

Gtk-Message: 10:58:57.773: Failed to load module "atk-bridge"

Gtk-Message: 10:59:21.444: Failed to load module "atk-bridge"

X IO Error

wrapper-1.0: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0.

xfdesktop: Fatal IO error 104 (Connection reset by peer) on X server :51.0.

wrapper-1.0: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0.

Gdk-Message: 10:59:55.630: xfce4-clipman: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0.

xfsettingsd: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0.

xfce4-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.

xfwm4: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0.

Gdk-Message: 10:59:55.630: Thunar: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.

Gdk-Message: 10:59:55.630: polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0.

xfce4-panel: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0.

XIO: fatal IO error 0 (Success) on X server ":51.0"

  after 42 requests (42 known processed) with 0 events remaining.

*Neil thackeray* *Sr. Systems Engineer*

Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign 405 N. Mathews Avenue | M/C 251 Urbana, IL 61801 217.244.3283 |neilt@illinois.edu <pmjones5@illinois.edu> beckman.illinois.edu

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