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x2goagent segfaults with x2goclient from ubuntu 20.10
by Kenneth Johansson 01 Apr '21

01 Apr '21

so I have been using x2go for years and its works fine for what I need but today it stopped working. the error message was not really clear so I deleted and reinstalled (server and client) but still no go. Turns out its the x2goagent that segfaults on the server side. The client is an ubuntu 20.10 and the servers I tested with is debian 10 and ubuntu 20.04. To make sure that there was no version mismatch I then installed the server on the ubuntu 20.10 computer and tried to connect to localhost and still get the segfault. how to debug this ?? what I try to do is use a single application and start "command=/usr/bin/xterm" since its not working even to localhost this should be something that a lot more people have a problem with than just me. I have deleted all configurations for both server and client and the only thing I change when I create a new session is the host login session type. So I do not see how I could have made something wrong here.

2 2

Bug#1535: users randomly (but repeatedly) get a "libx2go-server-db-sqlite3-wrapper insertsession" error at connection attempts
by Enrico Bertocchi 27 Mar '21

27 Mar '21

Package: x2goserver Version: Devuan Beowulf package x2goserver/stable,now 4.1.0.3-4 Dear sirs, I'm currently employing x2go (Devuan Beowulf package x2goserver/stable,now 4.1.0.3-4) to operate a terminal server for computer lab lessons. It randomly happens that some of the students experience sequences of failed connection attempts (usually 5-10 in a row) with the following kind of error (typed from a typical screenshot) [...] n283287-55-1616084795_stDmwm_dp32 at /usr/share/perl5/X2Go/Server/DB.pm line 251. : /usr/lib/x2go/libx2go-server-db-sqlite3-wrapper insertsession 55 x2go-cdm [...] n283287-55-1616084798_stDmwm_dp32 at /usr/share/perl5/X2Go/Server/DB.pm line 251. : /usr/lib/x2go/libx2go-server-db-sqlite3-wrapper insertsession 55 x2go-cdm n283287-55-1616084799_stDmwm_dp32 at /usr/share/perl5/X2Go/Server/DB.pm line 251. Unable to find free display port or insert new sessions into database; parameters: port(55), hostname (x2go-cdm) and session name (n283287-55-1616084799_stDmwm_dp32). A further, subsequent connection attempt randomly succeeds instead. At the same time, other students experience regular login procedures. The student passwd data is taken from a "sssd-ldap" domain, fact this that might cause some of the quirks. Please indicate me which further data on the server side might be relevant for investigating the problem. Thanks. -- Enrico Bertocchi

1 0

Bug#1386: Popup plasmoids flicker and disappear when a remote application is in focus
by Tristan Miller 23 Mar '21

23 Mar '21

Package: x2goclient Version: 4.1.1.1 I use X2Go to run single applications remotely and have them appear on my local Plasma desktop. When such a remote application window has focus, it prevents me from opening most pop-up plasmoids on my local machine. The plasmoids flicker and then disappear. STEPS TO REPRODUCE 1. Use X2Go to launch a single application remotely. 2. Give the remote application focus (for example, by Alt-Tabbing to it or clicking on it). 3. Do some action that causes a local plasmoid window to pop up. For example, click on the Application Launcher to try to show the application list, or click on the Digital Clock to try to show the calendar, or click on a group entry in the Task Manager to try to show the list of windows, or press Alt+F2 to try to bring up KRunner. OBSERVED RESULT 4. The popup window appears for a few milliseconds and then disappears. EXPECTED RESULT 4. The popup window should appear and then persist. SOFTWARE/OS VERSIONS KDE Plasma Version: 5.12.8 KDE Frameworks Version: 5.45.0 Qt Version: 5.9.4 OS: openSUSE Leap 15.0 x2goclient: 4.1.1.1 x2goserver: 4.1.0.4 ADDITIONAL INFORMATION The video at <https://bugs.kde.org/attachment.cgi?id=119625> shows the bug. It shows a portion of my Plasma panel that includes the Application Launcher, the Pager, and part of the Task Manager. Claws Mail is running remotely via X2Go and one of its composer windows has focus. I am clicking repeatedly on the Application Launcher. You can see the pop-up window briefly flickering and disappearing. As far as I can tell, the problem happens only when an application run via X2Go has focus. The problem is not reproducible with applications run remotely via plain SSH. Not sure if this is a KDE/Plasma problem or an X2Go problem, so I have reported this also on the KDE Bugzilla: <https://bugs.kde.org/show_bug.cgi?id=406882>

1 1

Bug#1534: session.log fills up root filesystem
by Nico van Vliet 22 Mar '21

22 Mar '21

package: x2goserver version: 4.1.0.3 Cannot write data to system activity file: No space left on device Just use X2Go client on Windows10 (and possibly others) and suspend and reconnect a lot to the server. X2Go keeps writing to the session.log file. Example: # ls -l /tmp/.x2go-deshmane/C-deshmane-79-1615026580_stDXFCE_dp32/session.log -rw------- 1 deshmane dkdvlp 2037804631 Mar 22 12:25 /tmp/.x2go-deshmane/C-deshmane-79-1615026580_stDXFCE_dp32/session.log tail /tmp/.x2go-deshmane/C-deshmane-79-1615026580_stDXFCE_dp32/session.log nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. nxagentPendingEvents: Returning error with display down. These messages keep filling up the root filesystem without limit. Server: # cat /etc/os-release NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" Please remove this message and/or limit size of session.log Best Regards, Nico van Vliet -- ___________________________________________________________ Nico van Vliet Faculty of Engineering Technology University of Twente Postbus 217 7500 AE Enschede Netherlands email: n.vanvliet(a)utwente.nl Tel: +31 53 489 2483 ___________________________________________________________

2 1

Bug#1532: x2goclient + DirectRDP (FreeRDP 2.x): Passwords need to escape quotation marks in the password
by Mike Gabriel 19 Mar '21

19 Mar '21

Package: x2goclient Severity: normal Version: 4.1.2.2-2 If user passwords contains a single " character, xfreerdp calls fail because the " character is not escaped / quoted properly and interpreted as part of the command line. Mike -- DAS-NETZWERKTEAM c\o Technik- und Ökologiezentrum Eckernförde Mike Gabriel, Marienthaler Str. 17, 24340 Eckernförde mobile: +49 (1520) 1976 148 landline: +49 (4351) 850 8940 GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de

1 0

Bug#1530: TLS intermediate certificate seems to be "wrong"
by Tim Landscheidt 08 Mar '21

08 Mar '21

Package: wiki.x2go.org While checking URLs with LWP/curl, I noticed that wiki.x2go.org fails: | [tim@passepartout ~]$ curl https://wiki.x2go.org/ | curl: (60) SSL certificate problem: unable to get local issuer certificate | More details here: https://curl.haxx.se/docs/sslcerts.html | curl failed to verify the legitimacy of the server and therefore could not | establish a secure connection to it. To learn more about this situation and | how to fix it, please visit the web page mentioned above. | [tim@passepartout ~]$ Staring at "openssl s_client -connect wiki.x2go.org:443", https://www.ssllabs.com/ssltest/analyze.html?d=wiki.x2go.org and https://letsencrypt.org/certificates/ suggests to a layman that the server certificate is signed by the R3 certificate, but the X3 certificate is sent along?

3 2

Bug#1527: native X11 fonts stop being rendered as the desktop is shared; functionality is restored on unsharing.
by Enrico Bertocchi 27 Feb '21

27 Feb '21

Package: x2goserver Version: 4.1.0.3-4 (amd64, devuan Beowulf) Running, let's say "xfd -fn fixed" or any other sofware whose GUI is based on native X11 fonts (mwm) from within a remote x2go session (DISPLAY=:50), strings are rendered correctly until a second connection to such display (via the "x2go/x11 Desktop Sharing" facility) is established on the same :50 display, even with the same user. As soon as the connection is established, X11 fonts rendering stops for both the clients and all X11 clients which rely on such feature (e.g. mwm, or xfd) are shown with blank text boxes; applications which rely on different font technologies (e.g. the sakura terminal) are not affected. As soon the second connection is closed, font rendering is restored for the initial client, and writings reappear on the next window refresh. Such behavior is consistently reproduced at every attempt. Both client connections are originated from the same Centos 8 machine, with x2goclient 4.1.2.2 and disabled "set display DPI setting" option. Sincerely -- Enrico Bertocchi

2 3

Bug#1072: X2Go Client: top 24 pixels in fullscreen session do not respond to mouse clicks
by Chris Martin 09 Feb '21

09 Feb '21

Package: x2goclient Version: 4.0.5.1 I am trying to start a full screen X2Go session which 1. takes up the entire display, and 2. responds to my mouse clicks everywhere in the session, but cannot accomplish this with any combination of settings. Client OS: Debian Jessie / 8 / Stable, GNOME 3 desktop environment Client X2Go Client: 4.0.5.1 and 4.0.3.1 Server OS: Xubuntu 16.04 LTS Server x2goserver version: 4.0.1.19 Server x2goserver-xsession version: 4.0.1.19 When I choose "fullscreen", I get different behavior intermittently: 1. The client spawns across the entire screen but the *top panel inside the X2Go session* does not respond to any mouse clicks. I suspect the panel in my GNOME session running the X2Go client (which occupies the same pixels behind the panel inside the X2Go session) is stealing mouse focus. My mouse pointer turns black instead of white when I hover over the top 24 pixels or so, inside the X2Go session. 2. The client spawns what I would call a "maximized window". The top of the screen is still consumed by the title bar of the X2Go window, and the panel of the enclosing GNOME session in which the X2Go client is running. I have observed both cases 1 (most common) and 2 with X2Go Client 4.0.5.1, and only case 1 with X2Go client 4.0.3.1. When I choose "Display 1" in the Input/Output settings, the X2Go session displays only in the upper-left quadrant of my display; the rest of the screen is black. Thank you, Chris Martin

4 5

Bug#1521: cannot start x2go after XQuartz update
by simona bellavista 06 Feb '21

06 Feb '21

Package: X2Go Client Version: 4.1.2.2 I work on Mac OSX client vs 10.14.6 I was able to connecting but then I have updated XQuartz and now I cannot connect anymore, I have reinstalled XQuartz to the previously working version (2.7.11), but it still doesn't work. On the x2go client I find the following text: Loop: WARNING Could not retrieve the X server authentication cookie. Warning: Failed to read data from the X auth command. Warning: Generated a fake cookie for X authentication. Info: Using ADSL link parameters 1408/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Forwarding X11 connections to display '/private/tmp/com.apple.launchd.gEXXCVRnsG/org.macports:0'. Info: Forwarding auxiliary X11 connections to display '/private/tmp/com.apple.launchd.gEXXCVRnsG/org.macports:0'. Session: Session started at 'Sat Feb 6 19:56:02 2021'. Connection timeout, abortingSession: Terminating session at 'Sat Feb 6 19:56:05 2021'. Info: Waiting the cleanup timeout to complete. Session: Session terminated at 'Sat Feb 6 19:56:06 2021'. from the terminal command: x2go --debug: (base) user@MacBook-Pro:jointfeb2021$ /Applications/x2goclient.app/Contents/MacOS/x2goclient --debug x2go-INFO-1> "Starting X2Go Client 4.1.2.2..." x2go-WARNING-1> English language requested, not loading translator. x2go-WARNING-1> English language requested, not loading translator. x2go-INFO-3> "Started X2Go Client." x2go-DEBUG-../src/onmainwindow.cpp:575> "$HOME=/Users/user" x2go-DEBUG-../src/onmainwindow.cpp:2266> Reading 1 sessions from config file. x2go-DEBUG-../src/sessionbutton.cpp:361> Creating QPixmap with session icon: ":/img/icons/128x128/x2gosession.png". x2go-DEBUG-../src/onmainwindow.cpp:13290> libssh not initialized yet. Initializing. x2go-DEBUG-../src/x2goutils.cpp:219> path value at beginning: "/opt/anaconda3/bin:/opt/anaconda3/condabin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Library/TeX/texbin:/opt/X11/bin:/Users/user/Dati/android/android-sdk-macosx/platform-tools:/Library/TeX/Root/bin/x86_64-darwin" x2go-DEBUG-../src/x2goutils.cpp:242> tmp_clean_add: ("/usr/local/bin") x2go-DEBUG-../src/x2goutils.cpp:270> clean_add: ("/usr/local/bin") x2go-DEBUG-../src/x2goutils.cpp:291> found entry i (0) in orig_path_list ("/usr/local/bin"): true x2go-DEBUG-../src/x2goutils.cpp:309> return value at end: "/opt/anaconda3/bin:/opt/anaconda3/condabin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Library/TeX/texbin:/opt/X11/bin:/Users/user/Dati/android/android-sdk-macosx/platform-tools:/Library/TeX/Root/bin/x86_64-darwin" x2go-DEBUG-../src/x2goutils.cpp:219> path value at beginning: "/opt/anaconda3/bin:/opt/anaconda3/condabin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Library/TeX/texbin:/opt/X11/bin:/Users/user/Dati/android/android-sdk-macosx/platform-tools:/Library/TeX/Root/bin/x86_64-darwin" x2go-DEBUG-../src/x2goutils.cpp:242> tmp_clean_add: ("/opt/local//bin") x2go-DEBUG-../src/x2goutils.cpp:270> clean_add: ("/opt/local//bin") x2go-DEBUG-../src/x2goutils.cpp:291> found entry i (0) in orig_path_list ("/opt/local//bin"): false x2go-DEBUG-../src/x2goutils.cpp:309> return value at end: "/opt/local//bin:/opt/anaconda3/bin:/opt/anaconda3/condabin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Library/TeX/texbin:/opt/X11/bin:/Users/user/Dati/android/android-sdk-macosx/platform-tools:/Library/TeX/Root/bin/x86_64-darwin" x2go-DEBUG-../src/pulsemanager.cpp:131> Found PA binary as "/Applications/x2goclient.app/Contents/exe/pulseaudio" x2go-DEBUG-../src/pulsemanager.cpp:132> Corresponding working dir: "/Applications/x2goclient.app/Contents/exe" x2go-DEBUG-../src/pulsemanager.cpp:369> pulseaudio --version returned:"pulseaudio 13.0-rebootstrapped " x2go-DEBUG-../src/pulsemanager.cpp:227> pulse started with arguments ("--exit-idle-time=-1", "-n", "-F", "/Users/user/.x2go/pulse/config.pa", "-p", "/Applications/x2goclient.app/Contents/Frameworks/pulse-13.0/modules", "--high-priority", "--log-level=debug", "--verbose", "--log-target=file:/Users/user/.x2go/pulse/pulse.log") - waiting for it to finish... Object::connect: No such slot SessionWidget::slot_emitSettings() Object::connect: No such slot SessionWidget::slot_emitSettings() 2021-02-06 19:55:14.369 x2goclient[15051:51373] modalSession has been exited prematurely - check for a reentrant call to endModalSession: x2go-DEBUG-../src/onmainwindow.cpp:2752> Creating QPixmap with session icon: '":/img/icons/128x128/x2gosession.png"'. x2go-DEBUG-../src/onmainwindow.cpp:6771> Setting focus. x2go-INFO-8> "Starting connection to server: login02.adress.adress:22" x2go-DEBUG-../src/onmainwindow.cpp:2853> Starting new ssh connection to server:"login02.adress.adress":"22" krbLogin: false x2go-DEBUG-../src/sshmasterconnection.cpp:168> SshMasterConnection, host "login02.adress.adress"; port 22; user "user"; useproxy false; proxyserver ""; proxyport 22 x2go-DEBUG-../src/sshmasterconnection.cpp:248> Starting SSH connection without Kerberos authentication. x2go-DEBUG-../src/sshmasterconnection.cpp:250> SshMasterConnection, instance SshMasterConnection(0x7fcef7d95ff0) created. x2go-DEBUG-../src/sshmasterconnection.cpp:495> SshMasterConnection, instance SshMasterConnection(0x7fcef7d95ff0) entering thread. x2go-DEBUG-../src/sshmasterconnection.cpp:797> Session port before config file parse: 22 x2go-DEBUG-../src/sshmasterconnection.cpp:807> Session port after config file parse: 22 x2go-DEBUG-../src/sshmasterconnection.cpp:870> Session port before config file parse (part 2): 22 x2go-DEBUG-../src/sshmasterconnection.cpp:880> Session port after config file parse (part 2): 22 x2go-DEBUG-../src/sshmasterconnection.cpp:904> cserverAuth x2go-DEBUG-../src/sshmasterconnection.cpp:943> state: 1 x2go-DEBUG-../src/sshmasterconnection.cpp:1218> Trying password mechanism if available. x2go-DEBUG-../src/sshmasterconnection.cpp:1222> Password mechanism available. Continuing. x2go-DEBUG-../src/sshmasterconnection.cpp:687> User authentication OK. x2go-DEBUG-../src/sshmasterconnection.cpp:1708> LOGIN CHECK:"LOGIN OK " x2go-DEBUG-../src/sshmasterconnection.cpp:1711> don't have interaction x2go-DEBUG-../src/sshmasterconnection.cpp:1744> LOOP FINISHED x2go-DEBUG-../src/sshmasterconnection.cpp:1748> No interaction needed, continue session x2go-DEBUG-../src/sshmasterconnection.cpp:702> Login Check - OK x2go-DEBUG-../src/onmainwindow.cpp:2947> SSH connection established. x2go-DEBUG-../src/onmainwindow.cpp:3374> Continue normal X2Go session x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 0: "x2golistsessions" x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7fcefd51ecc0) Running masterCon->addChannelConnection(this, ' "4fc93041-3683-4673-9ed7-3fc9a22af843" ', ' "bash -l -c 'echo "X2GODATABEGIN:4fc93041-3683-4673-9ed7-3fc9a22af843"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2golistsessions; echo "X2GODATAEND:4fc93041-3683-4673-9ed7-3fc9a2" '); x2go-DEBUG-../src/sshmasterconnection.cpp:1810> Locking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1812> Passing new channel connection object to channelConnections. x2go-DEBUG-../src/sshmasterconnection.cpp:1814> Unlocking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7fcef90e6d30 x2go-DEBUG-../src/sshmasterconnection.cpp:2065> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:4fc93041-3683-4673-9ed7-3fc9a22af843"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2golistsessions; echo "X2GODATAEND:4fc93041-3683-4673-9ed7-3fc9a22af843";'" x2go-DEBUG-../src/sshmasterconnection.cpp:2082> New exec channel created. x2go-DEBUG-../src/sshmasterconnection.cpp:2121> EOF on channel 0x7fcef90e6d30; SshProcess object: 0 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshprocess.cpp:532> SSH finished: raw output (stdout): "X2GODATABEGIN:4fc93041-3683-4673-9ed7-3fc9a22af843 21350|user-198-1612636569_stDXFCE_dp32|198|login02.adress.adress|R|2021-02-06T19:36:09|e1daaf813adabd2c2831cc0adc84c360|00.000.00.000|42750|42751|2021-02-06T19:36:11|user|1153|42752|-1|-1 X2GODATAEND:4fc93041-3683-4673-9ed7-3fc9a22af843 " x2go-DEBUG-../src/sshprocess.cpp:543> SSH finished: true - "21350|user-198-1612636569_stDXFCE_dp32|198|login02.adress.adress|R|2021-02-06T19:36:09|e1daaf813adabd2c2831cc0adc84c360|00.000.00.000|42750|42751|2021-02-06T19:36:11|user|1153|42752|-1|-1 " (0). x2go-DEBUG-../src/onmainwindow.cpp:3861> "21350|user-198-1612636569_stDXFCE_dp32|198|login02.adress.adress|R|2021-02-06T19:36:09|e1daaf813adabd2c2831cc0adc84c360|00.000.00.000|42750|42751|2021-02-06T19:36:11|user|1153|42752|-1|-1 " x2go-DEBUG-../src/onmainwindow.cpp:4864> No shadow session. x2go-DEBUG-../src/onmainwindow.cpp:4887> "Decoding session string:21350|user-198-1612636569_stDXFCE_dp32|198|login02.adress.adress|R|2021-02-06T19:36:09|e1daaf813adabd2c2831cc0adc84c360|00.000.00.000|42750|42751|2021-02-06T19:36:11|user|1153|42752|-1|-1" 2021-02-06 19:55:26.579 x2goclient[15051:51373] modalSession has been exited prematurely - check for a reentrant call to endModalSession: x2go-DEBUG-../src/onmainwindow.cpp:6954> Terminating session. x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 1: "x2goterminate-session user-198-1612636569_stDXFCE_dp32" x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7fcef944d390) Running masterCon->addChannelConnection(this, ' "d5ff0c45-dc4f-41fa-92f0-07d27e7d6ab1" ', ' "bash -l -c 'echo "X2GODATABEGIN:d5ff0c45-dc4f-41fa-92f0-07d27e7d6ab1"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2goterminate-session user-198-1612636569_stDXFCE_dp32; echo "" '); x2go-DEBUG-../src/sshmasterconnection.cpp:1810> Locking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1812> Passing new channel connection object to channelConnections. x2go-DEBUG-../src/sshmasterconnection.cpp:1814> Unlocking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7fcef7e85960 x2go-DEBUG-../src/sshmasterconnection.cpp:2065> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:d5ff0c45-dc4f-41fa-92f0-07d27e7d6ab1"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2goterminate-session user-198-1612636569_stDXFCE_dp32; echo "X2GODATAEND:d5ff0c45-dc4f-41fa-92f0-07d27e7d6ab1";'" x2go-DEBUG-../src/sshmasterconnection.cpp:2082> New exec channel created. x2go-DEBUG-../src/sshmasterconnection.cpp:2121> EOF on channel 0x7fcef7e85960; SshProcess object: 1 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshprocess.cpp:532> SSH finished: raw output (stdout): "X2GODATABEGIN:d5ff0c45-dc4f-41fa-92f0-07d27e7d6ab1 X2GODATAEND:d5ff0c45-dc4f-41fa-92f0-07d27e7d6ab1 " x2go-DEBUG-../src/sshprocess.cpp:543> SSH finished: true - "" (1). x2go-DEBUG-../src/onmainwindow.cpp:6771> Setting focus. x2go-DEBUG-../src/onmainwindow.cpp:4521> Executing remote command: "X2GODPI=72 X2GO_XINERAMA=no x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D XFCE both" x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 2: "X2GODPI=72 X2GO_XINERAMA=no x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D XFCE both" x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7fcef7e938a0) Running masterCon->addChannelConnection(this, ' "8b68c911-db3a-4bbc-995a-0005ed0b2bfe" ', ' "bash -l -c 'echo "X2GODATABEGIN:8b68c911-db3a-4bbc-995a-0005ed0b2bfe"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; X2GODPI=72 X2GO_XINERAMA=no x2gostartagent 800x600 adsl 16m-jpeg-9" '); x2go-DEBUG-../src/sshmasterconnection.cpp:1810> Locking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1812> Passing new channel connection object to channelConnections. x2go-DEBUG-../src/sshmasterconnection.cpp:1814> Unlocking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7fcef9202580 x2go-DEBUG-../src/sshmasterconnection.cpp:2065> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:8b68c911-db3a-4bbc-995a-0005ed0b2bfe"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; X2GODPI=72 X2GO_XINERAMA=no x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D XFCE both; echo "X2GODATAEND:8b68c911-db3a-4bbc-995a-0005ed0b2bfe";'" x2go-DEBUG-../src/sshmasterconnection.cpp:2082> New exec channel created. x2go-DEBUG-../src/sshmasterconnection.cpp:2121> EOF on channel 0x7fcef9202580; SshProcess object: 2 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshprocess.cpp:532> SSH finished: raw output (stdout): "X2GODATABEGIN:8b68c911-db3a-4bbc-995a-0005ed0b2bfe 199 972c46b58c17eb3872306010054b205e 2010 user-199-1612637732_stDXFCE_dp32 59563 59564 59565 X2GODATAEND:8b68c911-db3a-4bbc-995a-0005ed0b2bfe " x2go-DEBUG-../src/sshprocess.cpp:543> SSH finished: true - "199 972c46b58c17eb3872306010054b205e 2010 user-199-1612637732_stDXFCE_dp32 59563 59564 59565 " (2). x2go-DEBUG-../src/onmainwindow.cpp:5425> Agent output: "199 972c46b58c17eb3872306010054b205e 2010 user-199-1612637732_stDXFCE_dp32 59563 59564 59565 " x2go-DEBUG-../src/sshprocess.cpp:387> Starting tunnel via SshProcess object 3: "localhost":59563 -> "localhost":60563 RESUMING SESSION is KDRIVE: false x2go-DEBUG-../src/onmainwindow.cpp:6142> "Starting NX proxy, command: "/Applications/x2goclient.app/Contents/exe/"nxproxy -S nx/nx,options=/Users/user/.x2go/S-user-199-1612637732_stDXFCE_dp32/options:199" x2go-DEBUG-../src/sshprocess.cpp:157> Direct tunnel: waiting for connections on "localhost":60563 x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 4: "echo "default-server=localhost:59564" > "${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-client.conf";echo "cookie-file=${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-cookie" >> "${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-client.conf";echo "autospawn=no" >>"${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-client.conf"" x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7fcef7d9c6c0) Running masterCon->addChannelConnection(this, ' "a5423722-daf5-4731-b302-0678ccc34cde" ', ' "bash -l -c 'echo "X2GODATABEGIN:a5423722-daf5-4731-b302-0678ccc34cde"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; echo "default-server=localhost:59564" > "${HOME}/.x2go/C-user-" '); x2go-DEBUG-../src/sshmasterconnection.cpp:1810> Locking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1812> Passing new channel connection object to channelConnections. x2go-DEBUG-../src/sshmasterconnection.cpp:1814> Unlocking SSH channel connection MUTEX. x2go-DEBUG-../src/sshprocess.cpp:310> Copying file via SshProcess object 5: "/Users/user/.x2go/pulse/.pulse-cookie" -> "$HOME/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-cookie" x2go-DEBUG-../src/sshprocess.cpp:387> Starting tunnel via SshProcess object 6: "localhost":59564 -> "127.0.0.1":4713 x2go-DEBUG-../src/sshmasterconnection.cpp:426> Requesting reverse tunnel from port 59564 to 4713 x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: " NXPROXY - Version 3.5.99.20 Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder(a)phoca-gmbh.de> Copyright (c) 2014-2016 Ulrich Sibiller <uli42(a)gmx.de> Copyright (c) 2014-2016 Mihai Moldovan <ionic(a)ionic.de> Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) NXCOMP, NX protocol compression and NX extensions to this software are copyright of the aforementioned persons and companies. Redistribution and use of the present software is allowed according to terms specified in the file LICENSE.nxcomp which comes in the source distribution. All rights reserved. NOTE: This software has received contributions from various other contributors, only the core maintainers and supporters are listed as copyright holders. Please contact us, if you feel you should be listed as copyright holder, as well. NX protocol compression is derived from DXPC project. Copyright (c) 1995,1996 Brian Pane Copyright (c) 1996,1997 Zachary Vonler and Brian Pane Copyright (c) 1999 Kevin Vigor and Brian Pane Copyright (c) 2000,2003 Gian Filippo Pinzari and Brian Pane All rights reserved. See https://github.com/ArcticaProject/nx-libs for more information. Info: Proxy running in server mode with pid '15348'. Session: Starting session at 'Sat Feb 6 19:55:35 2021'. Info: Using errors file '/Users/user/.x2go/S-user-199-1612637732_stDXFCE_dp32/sessions'. Info: Using stats file '/Users/user/.x2go/S-199/stats'. Loop: WARNING! Overriding auxiliary X11 port with new value '1'. Warning: Overriding auxiliary X11 port with new value '1'. Info: Connecting to remote host 'localhost:60563'. Info: Connected to remote proxy on FD#11. " x2go-DEBUG-../src/sshmasterconnection.cpp:328> Listening for TCP/IP connections on 59564 x2go-DEBUG-../src/sshmasterconnection.cpp:1840> SSH Master Connection copy - dst path:".x2go/C-user-199-1612637732_stDXFCE_dp32" file:".pulse-cookie" x2go-DEBUG-../src/sshprocess.cpp:109> New TCP connection. x2go-DEBUG-../src/sshprocess.cpp:114> New socket: 29 x2go-DEBUG-../src/sshmasterconnection.cpp:1891> scp ok: "/Users/user/.x2go/pulse/.pulse-cookie" -> "user"@"login02.adress.adress":".x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-cookie" x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7fcefd520ef0 x2go-DEBUG-../src/sshmasterconnection.cpp:2065> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:a5423722-daf5-4731-b302-0678ccc34cde"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; echo "default-server=localhost:59564" > "${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-client.conf";echo "cookie-file=${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-cookie" >> "${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-client.conf";echo "autospawn=no" >>"${HOME}/.x2go/C-user-199-1612637732_stDXFCE_dp32/.pulse-client.conf"; echo "X2GODATAEND:a5423722-daf5-4731-b302-0678ccc34cde";'" x2go-DEBUG-../src/sshmasterconnection.cpp:2082> New exec channel created. x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7fcefd500290 x2go-DEBUG-../src/sshmasterconnection.cpp:1994> Forwarding parameters: from remote ("localhost":59563) to local ("localhost":49956) x2go-DEBUG-../src/sshmasterconnection.cpp:2028> Temporary session port after config file parse: 59563 x2go-DEBUG-../src/sshmasterconnection.cpp:2032> Temporary session host after config file parse: localhost x2go-DEBUG-../src/sshmasterconnection.cpp:2059> New channel forwarded. x2go-DEBUG-../src/sshmasterconnection.cpp:2121> EOF on channel 0x7fcefd520ef0; SshProcess object: 4 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshprocess.cpp:532> SSH finished: raw output (stdout): "X2GODATABEGIN:a5423722-daf5-4731-b302-0678ccc34cde X2GODATAEND:a5423722-daf5-4731-b302-0678ccc34cde " x2go-DEBUG-../src/sshprocess.cpp:543> SSH finished: true - "" (4). x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "Info: Connection with remote proxy completed. Loop: WARNING! Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. " x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "Loop: WARNING! Could not retrieve the X server authentication cookie. Warning: Failed to read data from the X auth command. Warning: Generated a fake cookie for X authentication. Info: Using ADSL link parameters 1408/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Forwarding X11 connections " x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "to display '/private/tmp/com.apple.launchd.gEXXCVRnsG/org.macports:0'. Info: Forwarding auxiliary X11 connections to display '/private/tmp/com.apple.launchd.gEXXCVRnsG/org.macports:0'. Session: Session started at 'Sat Feb 6 19:56:02 2021'. " x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "Session: Terminating session at 'Sat Feb 6 19:56:05 2021'. " x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "Info: Waiting the cleanup timeout to complete. " x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "Session: Session terminated at 'Sat Feb 6 19:56:06 2021'. " x2go-DEBUG-../src/sshmasterconnection.cpp:2205> Socket 29 closed. x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/onmainwindow.cpp:6475> Deleting Proxy. x2go-DEBUG-../src/onmainwindow.cpp:6520> Waiting for proxy to exit. x2go-DEBUG-../src/onmainwindow.cpp:6544> Checking exit status. x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 7: "x2gocmdexitmessage user-199-1612637732_stDXFCE_dp32" x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7fcefd506960) Running masterCon->addChannelConnection(this, ' "4e32388e-ba0b-425f-bd6c-9391947273b2" ', ' "bash -l -c 'echo "X2GODATABEGIN:4e32388e-ba0b-425f-bd6c-9391947273b2"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2gocmdexitmessage user-199-1612637732_stDXFCE_dp32; echo "X2G" '); x2go-DEBUG-../src/sshmasterconnection.cpp:1810> Locking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1812> Passing new channel connection object to channelConnections. x2go-DEBUG-../src/sshmasterconnection.cpp:1814> Unlocking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7fcef7dd67b0 x2go-DEBUG-../src/sshmasterconnection.cpp:2065> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:4e32388e-ba0b-425f-bd6c-9391947273b2"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2gocmdexitmessage user-199-1612637732_stDXFCE_dp32; echo "X2GODATAEND:4e32388e-ba0b-425f-bd6c-9391947273b2";'" x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 8: "x2goresume-session user-199-1612637732_stDXFCE_dp32 800x600 adsl 16m-jpeg-9 us query 0 both no" x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7fcefd525ca0) Running masterCon->addChannelConnection(this, ' "e3d454dc-1610-4bd2-a8d9-2c8a8e3c6060" ', ' "bash -l -c 'echo "X2GODATABEGIN:e3d454dc-1610-4bd2-a8d9-2c8a8e3c6060"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2goresume-session user-199-1612637732_stDXFCE_dp32 800x600 ad" '); x2go-DEBUG-../src/sshmasterconnection.cpp:1810> Locking SSH channel connection MUTEX. x2go-DEBUG-../src/sshmasterconnection.cpp:2082> New exec channel created. x2go-DEBUG-../src/sshmasterconnection.cpp:1812> Passing new channel connection object to channelConnections. x2go-DEBUG-../src/sshmasterconnection.cpp:1814> Unlocking SSH channel connection MUTEX. x2go-DEBUG-../src/onmainwindow.cpp:6601> Finished proxy. x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7fcef90cd380 x2go-DEBUG-../src/sshmasterconnection.cpp:2065> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:e3d454dc-1610-4bd2-a8d9-2c8a8e3c6060"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2goresume-session user-199-1612637732_stDXFCE_dp32 800x600 adsl 16m-jpeg-9 us query 0 both no; echo "X2GODATAEND:e3d454dc-1610-4bd2-a8d9-2c8a8e3c6060";'" x2go-DEBUG-../src/sshmasterconnection.cpp:2082> New exec channel created. x2go-DEBUG-../src/sshmasterconnection.cpp:2165> EOF on channel 0x7fcef7dd67b0; SshProcess object: 7 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshprocess.cpp:532> SSH finished: raw output (stdout): "X2GODATABEGIN:4e32388e-ba0b-425f-bd6c-9391947273b2 X2GODATAEND:4e32388e-ba0b-425f-bd6c-9391947273b2 " x2go-DEBUG-../src/sshprocess.cpp:543> SSH finished: true - "" (7). x2go-DEBUG-../src/onmainwindow.cpp:9933> "Command message: " x2go-DEBUG-../src/sshmasterconnection.cpp:764> SshMasterConnection, instance SshMasterConnection(0x7fcef7d95ff0) waiting for thread to finish. x2go-DEBUG-../src/sshmasterconnection.cpp:1908> Disconnecting ... x2go-DEBUG-../src/sshmasterconnection.cpp:1917> Deleting channel connections. x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshmasterconnection.cpp:1923> Disconnecting session. x2go-DEBUG-../src/sshmasterconnection.cpp:1927> Deleting sockets. x2go-DEBUG-../src/sshmasterconnection.cpp:1932> All channels closed and session disconnected. Quitting session loop. x2go-DEBUG-../src/sshmasterconnection.cpp:766> SshMasterConnection, instance SshMasterConnection(0x7fcef7d95ff0) thread finished. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called. x2go-DEBUG-../src/sshmasterconnection.cpp:771> SshMasterConnection, instance SshMasterConnection(0x7fcef7d95ff0) finished destructor.

1 0

Bug#1518: x2go is aborted: unable to open display
by simona bellavista 06 Feb '21

06 Feb '21

Package: X2Go Client Version: 4.1.2.2 I work on OSX client. I try to connect to a remote server, and the connection fails. I was able to connect until 3 days ago, I did not change anything that I can remember. I get the following error message: Error: Aborting session with 'Unable to open display 'nx/nx,options=/tmp/.x2go-user/C-user-173-1610379165_stDXFCE_dp32/options:173''. Session: Aborting session at 'Mon Jan 11 16:33:18 2021'. Session: Session aborted at 'Mon Jan 11 16:33:18 2021'. Loop: WARNING! Signals were not blocked in process with pid '30901'. Warning: Signals were not blocked in process with pid '30901'.

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