x2go-dev October 2017

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128 discussions

Bug#1159: PyHoca CLI: semaphore released too many times error
by Michael Ledin 15 Jan '24

15 Jan '24

Package: pyhoca-cli Version: 0.5.0.2 I'm using Archlinux and installed pyhoca-cli package from AUR. Previously I used x2goclient and created several profiles there. Also I tried to use pyhoca-gui but it has the same error (bug #1158). I start x2go desktop session with: pyhoca-cli -P 20170316113957420 -d It starts successfully with log: pyhoca-cli[12140] NOTICE: preparing requested X2Go session pyhoca-cli[12140] (PyHocaCLI) NOTICE: preparing requested X2Go session pyhoca-cli[12140] (x2gosessregistry-pylib) NOTICE: registering X2Go session AppHeads WAN... pyhoca-cli[12140] (x2goclient-pylib) NOTICE: initializing X2Go session... pyhoca-cli[12140] (x2gocontrolsession-pylib) NOTICE: connecting to [my.server.here]:22 pyhoca-cli[12140] (PyHocaCLI) NOTICE: give the X2Go session some time to come up... pyhoca-cli[12140] (PyHocaCLI) INFO: X2Go session is now running, the X2Go client's profile name is: AppHeads WAN pyhoca-cli[12140] (PyHocaCLI) INFO: X2Go session name is: appheads-50-1489690847_stDXFCE_dp24 pyhoca-cli[12140] (PyHocaCLI) NOTICE: Press CTRL+C to suspend the running session... Then I press Ctrl+C and get an error: ^CKeyboardInterrupt Thu Mar 16 22:01:04 2017 pyhoca-cli[12140] (PyHocaCLI) INFO: Suspending X2Go session appheads-50-1489690847_stDXFCE_dp24 Traceback (most recent call last): File "/usr/bin/pyhoca-cli", line 423, in <module> thisPyHocaCLI.MainLoop() File "/usr/lib/python2.7/site-packages/pyhoca/cli/frontend.py", line 601, in MainLoop self._X2GoClient__suspend_session(self.x2go_session_hash) File "/usr/lib/python2.7/site-packages/x2go/client.py", line 1620, in suspend_session return self.session_registry(session_uuid).suspend(**sessionopts) File "/usr/lib/python2.7/site-packages/x2go/session.py", line 2303, in suspend self._lock.release() File "src/gevent/_semaphore.py", line 266, in gevent._semaphore.BoundedSemaphore.release (src/gevent/gevent._semaphore.c:5353) File "src/gevent/_semaphore.py", line 268, in gevent._semaphore.BoundedSemaphore.release (src/gevent/gevent._semaphore.c:5291) thread.error: Semaphore released too many times if then I'll try to resume the session (I get it name from "pyhoca-cli -P 20170316113957420 -L"): pyhoca-cli -P 20170316113957420 -R appheads-50-1489690847_stDXFCE_dp24 then sometimes I get the same error as above. -- Michael Ledin

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Bug#1094: When connected to a x2go server that has nVidia's binary drivers most software will segfault.
by zingmars 15 Jan '24

15 Jan '24

Package: x2goserver Version: 4.0.1.19 When I connect to a x2go server that has an nVidia GPU using nVidia's binary drivers most software (such as Firefox, Thunderbird, Cheese, Transmission GUI etc.) will segfault on launch. This can seemingly be fixed by setting the LD_LIBRARY_PATH variable to wherever the nVidia drivers are (i.e. for nVidia-361 drivers just run LD_LIBRARY_PATH=/usr/lib/nvidia-361" in the server's terminal. Alternatively it seems that you can switch to the Noveau driver and the issue won't occur, but this might not always be an option. There's also a thread on ubuntuforums (https://ubuntuforums.org/showthread.php?t=2337814) that also has a video of this bug in action. I'm using Ubuntu 16.04 with MATE.

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Bug#1022: x2goserver fails to start with most recent Ubuntu 16.04 updates (20160408)
by aa a 15 Jan '24

15 Jan '24

Package: x2goserver Version: 4.0.1.19-010640ubuntu16.04.1 With the most recent updates to Ubuntu 16.04 (moving kernel to 4.4.0-18-generic Apr 6) x2goserver suddenly fails to start. The relevant error message in .xsession-x2go-errors is: 13 XSession-x2go: X session started for ddd at Fri Apr 8 17:52:25 EDT 2016 14 localuser:ddd being added to access control list 15 /etc/x2go/Xsession: 3: [: x: unexpected operator 16 mate-session[3684]: GLib-GIO-CRITICAL: g_settings_schema_source_lookup: assertion 'source != NULL' failed 17 mate-session[3684]: GLib-GIO-ERROR: No GSettings schemas are installed on the system 18 aborting... I have Ubuntu 16.04 installed on a physical machine and also as a KVM virtual machine. In each case after the most recent updates x2goserver fails to start with the same message as above.

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Bug#877: x2go.x2go_exceptions.X2GoSessionRegistryException: No session found for UUID ...
by Michael DePaulo 15 Jan '24

15 Jan '24

Package: pyhoca-cli Version: 0.5.0.2 Severity: minor Client OS: Fedora 22 64-bit (with latest updates. In beta, but about to be released.) pyhoca-cli 0.5.0.2-1.fc22 (Fedora's package) python-x2go 0.5.0.3-1.fc22 (Fedora's package) Server OS: Fedora 21 64-bit (with latest updates) running in a Docker container DockerFile: https://github.com/mikedep333/Fedora-Dockerfiles/blob/add-x2go/x2go/x2go-mi… x2goserver 4.0.1.19-1.fc21 (Fedora's package) x2goserver-xsession 4.0.1.19-1.fc21 (Fedora's package) nxagent 3.5.0.29-1.fc21 (Fedora's package) x2goagent 3.5.0.29-1.fc21 (Fedora's package) Note: Even if you are unfamiliar with Docker, you should be able to make sense of the Dockerfile. Note that it is based on the "fedora" image, which is a very minimal install of Fedora. Also note that "start.sh" simply adds a user account named "user" with a fixed password. When I connect to a new TERMINAL session (which defaults to lxterminal), the session appears to work fine. However, at the end, I often receive an exception like: x2go.x2go_exceptions.X2GoSessionRegistryException: No session found for UUID a2f17c6e-fe14-11e4-8e21-001a4a1bd601 I am using this command to connect: pyhoca-cli --server 127.0.0.1 -p 50000 -N --user user --add-to-known-hosts --libdebug --debug See attachment for output. This bug is reproducible, but not 100% of the time. It seems to be related to timing. It is usually reproduced when I leave lxterminal open for 10 seconds. (I close lxterminal by typing "exit" or clicking the X in the window decoration.) It is usually NOT reproduced when I leave lxterminal open for 2 seconds.

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Bug#323: x2go server refuses client with 'Error: Wrong version or invalid session authentication cookie.'
by harry mangalam 15 Jan '24

15 Jan '24

Package: x2goserver Version: 4.0.1 x86_64, CentOS 6.4, kernel 2.6.32-358.18.1.el6.centos.plus.x86_64 (also x2go version 4.0.1.6 (self-compiled) on the same platform) Problem: After a server OS lockup and reboot, the previously working x2goserver would not allow client connections from Mac, Linux, Windows. After re-installing x2gserver (x2goserver-4.0.1.6-1.1.x86_64) and x2goagent (x2goagent-3.5.0.20-4.1.x86_64), it refused to connect with the client-side message: === Session: Starting session at 'Fri Oct 11 18:11:36 2013'. Info: Connecting to remote host 'localhost:31030'. Info: Connection to remote proxy 'localhost:31030' established. Error: The remote NX proxy closed the connection. Error: Failure negotiating the session in stage '7'. Error: Wrong version or invalid session authentication cookie. Session: Terminating session at 'Fri Oct 11 18:11:37 2013'. Session: Session terminated at 'Fri Oct 11 18:11:37 2013'. === (dont know if this is complete since the popup only lasts 2s.) This error has been cited multiple times in various fora and lists, but no one seems to have been able to solve it. I can passwordlessly ssh to both servers just fine from other Linux clients. If I don't use the ssh keys, I can enter my password and the result is the same. The server seems to be initializing the session since if I try to log in multiple times, there are new sessions listed, but I'm not allowed to connect to them. I can only terminate or suspend them. Terminating them does appear to work since they are not listed on following sessions if I do. The problem does seem to be related to authentication or authorization; we use ldap-based auth on the server and it's working fine otherwise, except for x2go. Thanks for your work! harry --- Harry Mangalam - Research Computing, OIT, Rm 225 MSTB, UC Irvine [m/c 2225] / 92697 Google Voice Multiplexer: (949) 478-4487 415 South Circle View Dr, Irvine, CA, 92697 [shipping] MSTB Lat/Long: (33.642025,-117.844414) (paste into Google Maps) ---

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Bug#1010: Slow repaint on window move (single application)
by Sebastian Loncar 15 Jan '24

15 Jan '24

Package: x2goclient Version: 4.0.5.1 When connecting in single application mode, and you move the window by dragging the title bar, the app freezes. If you have two windows open, you see on the windows behind the top window a very slow repaint (up to a minute, depends on how long you moved the window before). After repaint, the app works again. This issue does not happen, if you maximize/restore the window or move them to another monitor via keyboard shortcut. Please see the attachment. I moved the xterm from the middle to the right, i took the screenshot while the very long repaint process. With this bug, the single app mode is nearly useless. I'm using XFCE4 on Arch Linux.

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Bug#684: select_session offers offline servers to X2Go Client
by Mike Gabriel 15 Jan '24

15 Jan '24

Package: python-x2gobroker Severity: important Version: 0.0.3.0-preview The X2Go Session Broker should be able to detect offline X2Go Servers. It should not offer session via the select_session() method to X2Go Client, if a server is offline. Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Bug#755: cannot upgrade x2goServer on fedora 20 using yum
by ura 15 Jan '24

15 Jan '24

Package: x2goserver Version: 4.0.1.18 i have been unable to complete the update for x2goserver here on fedora 20 (64bit). i have not changed the config files or repo files that are relevant to x2goserver since the last successful update was run. i run yum update and receive the following output in the terminal: yum update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * fedora: ftp.nluug.nl * rpmfusion-free: mirror.nl.leaseweb.net * rpmfusion-free-updates: mirror.nl.leaseweb.net * updates: ftp.nluug.nl Resolving Dependencies --> Running transaction check ---> Package x2goserver.x86_64 0:4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20 will be updated --> Processing Dependency: x2goserver = 4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20 for package: x2goserver-extensions-4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20.x86_64 ---> Package x2goserver.x86_64 0:4.0.1.18-5.fc20 will be an update ---> Package x2goserver-xsession.x86_64 0:4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20 will be updated ---> Package x2goserver-xsession.x86_64 0:4.0.1.18-5.fc20 will be an update --> Finished Dependency Resolution Error: Package: x2goserver-extensions-4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20.x86_64 (@x2go-releases) Requires: x2goserver = 4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20 Removing: x2goserver-4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20.x86_64 (@x2go-releases) x2goserver = 4.0.1.18-0.0x2go1.1.git20141006.949.main.fc20 Updated By: x2goserver-4.0.1.18-5.fc20.x86_64 (updates) x2goserver = 4.0.1.18-5.fc20 Available: x2goserver-4.0.1.6-5.fc20.x86_64 (fedora) x2goserver = 4.0.1.6-5.fc20 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest expected outcome: package updates correctly.

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Bug#954: SFTP server fails to read dirs containing files with umlauts
by Mike Gabriel 15 Jan '24

15 Jan '24

Package: python-x2go Version: 0.5.0.4 Severity: important I just discovered that the folder sharing code (integrated SFTP server) of Python X2Go chokes on directories contaning file names with umlauts. I will take a look into this soon... Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Bug#324: Enable TCP socket in Pulseaudio daemon before starting up session sound
by Mike Gabriel 15 Jan '24

15 Jan '24

Package: python-x2go Severity: wishlist Enable TCP socket in PulseAudio before starting a session (that requests pulse support). See below. Mike ----- Weitergeleitete Nachricht von Tim Kruse <tim.kruse(a)kikxxl.de> ----- Datum: Wed, 16 Oct 2013 13:23:19 +0200 Von: Tim Kruse <tim.kruse(a)kikxxl.de> Betreff: Re: [X2Go-User] pyhoca-cli sound issues [SOLVED] An: x2go-user(a)lists.berlios.de Am 16.10.2013 12:44, schrieb Tim Kruse: > which is clear, as there is no open port 4713. > > So, if pyhoca or python-x2go is not able to handle this, is there a > chance to let pulseaudio open this port otherwise? I think of some kind > of script, which will be executed before pyhoca ... I got it: pacmd load-module module-native-protocol-tcp listen=0.0.0.0 before the start of pyhoca-cli let the running pulseaudio deamon open it's port. Or let pulseaudio open the port by default by adding the above line to /etc/pulse/default.pa ... Perhaps it's possible to let pyhoca, or python-x2go respectively, open the port like x2goclient does ... but for me the above solution is enough ... So long, Tim _______________________________________________ X2Go-User mailing list X2Go-User(a)lists.berlios.de https://lists.berlios.de/mailman/listinfo/x2go-user ----- Ende der weitergeleiteten Nachricht ----- -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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x2go-dev October 2017