x2go-dev July 2018

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Bug#829: Screen resize triggers session suspension
by Florian Wicke - Hetzner Online AG 30 Jan '24

30 Jan '24

Package: nx-x11-common Version: 3.5.0.32-0x2go1~git20150317.672+jessie.heuler.1 Reproducable with every client and server so far from stable and heuler. Only affects full sessions - users are not affected if running directly an APPLICATION. Pressing CTRL+ALT+R triggers error message in session.log of user, resizes the screen but also triggers suspension of the session (note the the Proxy-Warning does not occur every time): Session: Resuming session at 'Thu Mar 26 11:11:56 2015'. Info: Proxy running in server mode with pid '18054'. Info: Waiting for connection from 'localhost' on port '30076'. Info: Accepted connection from '127.0.0.1'. Info: Connection with remote proxy completed. Info: Using LAN link parameters 1536/24/1/0. Info: Using agent parameters 5000/0/50/0/0. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_24'. Info: Not using NX delta compression. Info: Not using ZLIB data compression. Info: Not using ZLIB stream compression. Info: Not using a persistent cache. Info: Listening to X11 connections on display ':75'. Info: Established X client connection. Info: Using shared memory parameters 1/1/0/0K. Info: Using local device configuration changes. keyboard file created Session: Session resumed at 'Thu Mar 26 11:12:03 2015'. Info: Screen [0] resized to geometry [3840x1080] fullscreen [1]. <<-------- note from me: pressing ctrl+alt+r --------->> Info: Disabled desktop resize mode in agent. Session: Suspending session at 'Thu Mar 26 11:12:14 2015'. Proxy: WARNING! Handling data for finishing FD#5 channel ID#1. suspended at 'Thu Mar 26 11:12:14 2015'. Unfortunately we think this leads to another problem. Sometimes users get suspended right after resuming their session: Session: Session resumed at 'Wed Mar 25 21:30:37 2015'. Info: Screen [0] resized to geometry [1680x1050] fullscreen [1]. Session: Suspending session at 'Wed Mar 25 21:30:39 2015'. And last but not least this results in another problem - the screen does not get resized correctly sometimes and is just shown as viewport. Kind regards Florian Wicke Hetzner Online AG Industriestr. 25 91710 Gunzenhausen / Germany Tel: +49 9831 505-0 Fax: +49 9831 505-3 florian.wicke(a)hetzner.de www.hetzner.com Register Court: Registergericht Ansbach, HRB 3204 Management Board: Dipl. Ing. (FH) Martin Hetzner Chairwoman of the Supervisory Board: Diana Rothhan

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Bug#791: Fwd: [Bug 1193943] New: [abrt] nxagent: nxagentDispatchEvents(): nxagent killed by SIGSEGV
by Orion Poplawski 30 Jan '24

30 Jan '24

Package: nx-libs Version: 3.5.0.28 Events.c:1251 is: x.u.u.detail = inputInfo.pointer -> button -> map[nxagentReversePointerMap[X.xbutton.button - 1]]; X.xbutton.button = 0 : X = {type = 4, xany = {type = 4, serial = 0, send_event = 0, display = 0x159ba50, window = 0}, xkey = {type = 4, serial = 0, send_event = 0, display = 0x159ba50, window = 0, root = 7848854, subwindow = 11409376, time = 0, x = -772, y = -13337, x_root = 32767, y_root = 0, state = 57, keycode = 0, same_screen = 0}, xbutton = {type = 4, serial = 0, send_event = 0, display = 0x159ba50, window = 0, root = 7848854, subwindow = 11409376, time = 0, x = -772, y = -13337, x_root = 32767, y_root = 0, state = 57, button = 0, same_screen = 0} -------- Forwarded Message -------- Subject: [Bug 1193943] New: [abrt] nxagent: nxagentDispatchEvents(): nxagent killed by SIGSEGV Date: Wed, 18 Feb 2015 15:30:49 +0000 From: bugzilla(a)redhat.com To: orion(a)cora.nwra.com https://bugzilla.redhat.com/show_bug.cgi?id=1193943 Bug ID: 1193943 Summary: [abrt] nxagent: nxagentDispatchEvents(): nxagent killed by SIGSEGV Product: Fedora Version: 20 Component: nx-libs Assignee: orion(a)cora.nwra.com Reporter: unixi(a)freeshell.org QA Contact: extras-qa(a)fedoraproject.org CC: orion(a)cora.nwra.com Version-Release number of selected component: nxagent-3.5.0.28-1.fc20 Additional info: reporter: libreport-2.2.3 backtrace_rating: 4 cmdline: /usr/lib64/nx/bin/nxagent -persistent -D -name 'NX - jboyle@mnich.myquotient.net:2000 - mnich (GPL Edition)' -option /home/jboyle/.nx/C-mnich.myquotient.net-2000-9C1FED17795787217FBC80B6F1F2E86E/options -nolisten tcp :2000 crash_function: nxagentDispatchEvents executable: /usr/lib64/nx/bin/nxagent kernel: 3.18.5-101.fc20.x86_64 runlevel: 3 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (5 frames) #0 nxagentDispatchEvents at Events.c:1251 #1 nxagentBlockHandler at Handlers.c:446 #2 BlockHandler at dixutils.c:442 #3 WaitForSomething at WaitFor.c:257 #4 Dispatch at X/NXdispatch.c:619 -- You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.

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Bug#49: wine does not start within x2goclient: Application tried to create a window, but no driver could be loaded.
by Matthias Hellinghausen 30 Jan '24

30 Jan '24

Package: x2goserver 3.1.1.3-0~571~oneiric1, x2goagent 2:3.5.0.14-0~247~oneiric1 Hello After upgrading the x2goserver from the following Version x2goagent 2:3.5.0.14-0~247~oneiric1 x2goserver 3.1.1.3-0~571~oneiric1 to x2goagent 2:3.5.0.15-0~263~oneiric1 x2goserver 3.1.1.4-0~592~oneiric1 wine (v. 1.2.3) programs do not start anymore within the x2goclient session. The following is what wine tells us when starting notepad: mh@ltsp3:~$ notepad Application tried to create a window, but no driver could be loaded. Unknown error (998). err:systray:initialize_systray Could not create tray window Application tried to create a window, but no driver could be loaded. Unknown error (998). All other X-applications are working fine. The version of the x2goclient did not change. please let me know, If there is anything more you need to know... kind regards Matthais -- Dipl.-Ing.(FH) Matthias Hellinghausen EDV-Abteilung BZD Gesellschaft f. Transfusionsmedizin Duisburg mbH Königstrasse 63 - 47051 Duisburg Tel.: +49 (0) 203 - 300 95 8557 Fax: +49 (0) 203 - 300 95 8564 Email: mh(a)bzd.de Sitz der Gesellschaft: Duisburg Amtsgericht Duisburg HRB 4273 Geschäftsführung: Sybille Trobisch, Olaf Frahm

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Bug#1265: Remote proxy closed session while negotiating the connection.
by nanook＠eskimo.com 30 Jan '24

30 Jan '24

Package: nxproxy (guessing) Version: xenial 2:3.5.0.33-0~710~ubuntu16.04.1 amd64 It appears to be connecting then aborts with a pop-up: The remote proxy closed the connection while negotiating the session. This may be due to the wrong authentication credentials passed to the server. The main window very briefly displays this message: Loop: PANIC! Failure negotiating the session in stage '7'. Error: Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie. Error: Wrong version or invalid session authentication cookie. Session: Terminating session at 'Tue Feb 27 02:54;49 2018'. Session: Session terminated at 'Tue Feb 27 02:54;49 2018'. The server is Zircon 12.2 and the Client is Ubuntu 17.10. This was working yesterday, I installed nightly builds and it did not work at all, then purged everything and went back to daily and now I get this.

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Bug#367: wine does not start within x2goclient: Application tried to create a window, but no driver could be loaded.
by Mike Gabriel 30 Jan '24

30 Jan '24

Package: nxagent Severity: important While scanning our bug tracker logs, I found this mail from Matthias Hellinghausen which got not processed into the tracker, because the Package: <package> line was missing at the beginning of the mail... Mike """ Hello After upgrading the x2goserver from the following Versions x2goagent 2:3.5.0.14-0~247~oneiric1 x2goserver 3.1.1.3-0~571~oneiric1 to x2goagent 2:3.5.0.15-0~263~oneiric1 x2goserver 3.1.1.4-0~592~oneiric1 wine (v. 1.2.3) programs do not start anymore within the x2goclient session. The following is what wine tells us when starting notepad: mh@ltsp3:~$ notepad Application tried to create a window, but no driver could be loaded. Unknown error (998). err:systray:initialize_systray Could not create tray window Application tried to create a window, but no driver could be loaded. Unknown error (998). All other X-applications are working fine. The version of the x2goclient did not change. please let me know, If there is anything more you need to know... kind regards Matthais -- Dipl.-Ing.(FH) Matthias Hellinghausen EDV-Abteilung BZD Gesellschaft f. Transfusionsmedizin Duisburg mbH K<F6>nigstrasse 63 - 47051 Duisburg Tel.: +49 (0) 203 - 300 95 8557 Fax: +49 (0) 203 - 300 95 8564 Email: mh(a)bzd.de Sitz der Gesellschaft: Duisburg Amtsgericht Duisburg HRB 4273 Gesch<E4>ftsf<FC>hrung: Sybille Trobisch, Olaf Frahm """ -- 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#62: GTK(?)-Issues in Debian Testing/Wheezy
by Moritz Struebe 30 Jan '24

30 Jan '24

Package: x2goagent Version: 3.5.0.16-0 There seem to be gtk related issues with GTK in Wheezy. You'll get an error similar to Gdk-WARNING **: The program 'gnome-control-center' received an X Window System error. This probably reflects a bug in the program. The error was 'BadLength (poly request too large or internal Xlib length erro'. (Details: serial 155 error_code 16 request_code 147 minor_code 1) Currently known are Eclipse: https://bugs.eclipse.org/bugs/show_bug.cgi?id=386955 https://wiki.archlinux.org/index.php/FreeNX#eclipse_crashes_when_editing_a_… and the Gnome Control Center: https://bugzilla.redhat.com/show_bug.cgi?id=827916 https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/867631 -- Dipl.-Ing. Moritz 'Morty' Struebe (Wissenschaftlicher Mitarbeiter) Lehrstuhl für Informatik 4 (Verteilte Systeme und Betriebssysteme) Friedrich-Alexander-Universität Erlangen-Nürnberg Martensstr. 1 91058 Erlangen Tel : +49 9131 85-25419 Fax : +49 9131 85-28732 eMail : struebe(a)informatik.uni-erlangen.de WWW : http://www4.informatik.uni-erlangen.de/~morty

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Bug#554: Disable local screensaver when x2go session is in fullscreen mode
by Reinhard Tartler 30 Jan '24

30 Jan '24

Package: nxproxy Severity: serious I noticed that the when nxproxy is in fullscreen mode, it (by design) captures all keyboard strokes. This is in general great because this way all keyboard shortcuts on the remote work. However, the local screen saver might still kick in and require a password. Because the nxproxy captures all input, a less carefull user might enter his local password into the current application that is running in the x2go session. When the remote application happens to be a chat application, entering your password might have serious security implications. I think a fullscreen nxproxy is a good reason to inhibit the local screensaver. -- regards, Reinhard

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Bug#1125: Remote printing not working in Debian Jessie
by JR 30 Jan '24

30 Jan '24

Package: cups-x2go Version: 3.0.1.3-0x2go1+git20161129.135+8.main.1 I tried printing on the local PC from the x2goclient without success. x2goclient gives no message. I installed x2goserver-printing, cups, cups-x2go and I have installed x2go virtual printer. This happens to me only in Q4OS 1.18-Orion (Debian Jessie based). In Q4OS 2.2-Scorpion (Debian Stretch based) it works perfectly. For more details, please give a look at: http://www.q4os.org/forum/viewtopic.php?id=1261 Thank you and congratulations for your work. JR

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Bug#960: Dependency Error Install X2Go on Debian 7 Stable
by Pale Blue 30 Jan '24

30 Jan '24

Package: x2go Version: Latest root@WOMP:~# sudo apt-get -f install x2goserver x2goserver-xsession Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: x2goserver : Depends: x2goagent (>= 2:3.5.0.25-0~) but it is not going to be installed E: Unable to correct problems, you have held broken packages. root@WOMP:~# /apt-get install x2goagent -bash: /apt-get: No such file or directory root@WOMP:~# apt-get install x2goagent Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: x2goagent : Depends: nxagent (>= 2:3.5.0.32-0x2go1+git20150704.734+jessie.main.1) Depends: nxagent (< 2:3.5.0.32-0x2go1+git20150704.734+jessie.main.1.1) E: Unable to correct problems, you have held broken packages. I followed the instructions on your Install page <http://wiki.x2go.org/doku.php/doc:installation:x2goserver> but was unable to install on Debian 7 Stable. after some research and talking to others on IRC I was told to speak with you about the possibility that the packages in your repo might be broken? Any Guidance would be much appreciated! Thanks,d Pale Blue

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Bug#740: Ship a default, small-footprint, F/LOSS PDF viewer with x2goclient
by Stefan Baur 30 Jan '24

30 Jan '24

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 package: x2goclient severity: wishlist Hi, this is actually a sub-bug of http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=738. I am fling it as a separate bug because I believe this particular part of Bug 738 can be resolved rather quickly. Currently, X2GoClient offers the free choice of X-Servers to be used with it, but ships with VcXsrv as default and has some "sane" default settings configured for it, too, so X2GoClient works out of the box. Whoever wishes to deviate from that path, is, however, free to do so - X2GoClient has an option to specify a custom X-Server of the user's choice. I would like to take a similar approach for printing. At present, no default PDF viewer is shipped with X2GoClient, and the user has to fiddle with whichever PDF viewer they choose to get the parameters right. SumatraPDF is a free (F/LOSS) PDF viewer that offers a portable version, i.e. it is a single, self-contained executable that doesn't require any installation. It also supports a wide range of command line parameters so it is ideal for scripted background use (like "open PDF, print to default printer, close application"). Quoting from http://www.sumatrapdfreader.org/manual.html: > Printing related cmd-line arguments: -print-to-default $file.pdf > prints a PDF file on a default printer -print-to $printer_name > $file.pdf prints a PDF on a given printer -print-dialog $file.pdf > opens a PDF file and shows a print dialog to select printer and > printing options -exit-on-print when -print-to-default or -print-to > is used, will exit after printing So, basically, "-exit-on-print -print-to-default" is all we'd need for basic functionality. If we want to do "enumPrinters" within X2GoClient, "-exit-on-print -print-to $printer" will also already work. If we want to leave printer selection to SumatraPDF, "-print-dialog" has to be used, and we'd probably have to submit a patch to the SumatraPDF project that "-exit-on-print" be made to work with "-print-dialog" as well, as the current description seems to indicate that this is not the case. Thus, I would ask that some helpful soul steps up and please a) includes SumatraPDF's standalone executable in the Windows X2GoClient package b) adds the proper code to X2GoClient so client-side printing defaults to using SumatraPDF in the X2Go program directory unless the user has created a custom configuration. The rationale for this bug is that adding this feature would increase usability of X2GoClient just as shipping a default X-Server does. Portable version of SumatraPDF can be found here: https://kjkpub.s3.amazonaws.com/sumatrapdf/rel/SumatraPDF-3.0.zip Sources are here: https://github.com/sumatrapdfreader/sumatrapdf - -Stefan - -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQEcBAEBAgAGBQJUs6TeAAoJEG7d9BjNvlEZZvQH/ikythSLIBTJ9cCN7/qPik3T k0iB5JE9N3cCc9MyWfQU46oI7k5r+M4aN692hVrAdFraEfeAxdVomtzTKI5/v4IP f8/HlvW8lU+b/8Wnx/YNFuzvAIK4mM+9gno+t9JnFLptI1P3iAd6tQ5R563NKk1y 2AYM3unC24xzFXIbFNsFMA6mT7Ow94K8mGMALn/H3j1kGtbmF/FeuTHKmrmC/w7F e3WO8oXjNxL+PBumCb5mZngk3Y8aECHJSQVks8710MTyYNoJRCgYqx4hOAC3ObhJ J6+hTbretKya2/ba/meka/v7hU0ze2ahevpH7y9y1aMAtVIi8laEcQ+k4TPwvr4= =af+t -----END PGP SIGNATURE-----

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x2go-dev July 2018