x2go-dev April 2016

x2go-dev@lists.x2go.org

29 participants
132 discussions

Bug#63: Current Cairo test suite segfaults x2goagent
by Moritz Struebe 13 Jun '16

13 Jun '16

Package: x2goagent Version: 3.5.0.16-0 x2goagant segfaults when running the cairo test suite. (The current version only compiles on Wheezy) This can be reproduced running: git clone git://anongit.freedesktop.org/git/cairo cd cairo ./autogen.sh ./configure make make test As quite few tests fail Bugs #62 and #35 might be related to Cairo.

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Bug#78: NX_xrandr lacks support from Xrandr 1.2 and higher
by Reinhard Tartler 13 Jun '16

13 Jun '16

Package: x2goagent When starting a new x2go session, the startup scripts modify the LD_LIBRARY_PATH of all applications to include /usr/lib/nx/X11/Xrandr. This replaces the system libXrandr with the NX/X2go provided one. Unfortunately, this breaks the xrandr utility: >> echo $LD_LIBRARY_PATH /usr/lib/nx/X11/Xrandr:/usr/lib/nx/X11/Xinerama:/usr/lib/nx/X11 >> xrandr xrandr: symbol lookup error: xrandr: undefined symbol: XRRGetScreenSizeRange zsh: exit 127 xrandr -- regards, Reinhard

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Bug#908: nxagent segfault, causes session loss
by Rob Izzard 13 Jun '16

13 Jun '16

Package: nxagent Version: 3.5.0.32-0~668~ubuntu14.04.1 Severity: important Dear nxagent coders, Over the last couple of weeks I have lost a few x2go sessions which is, you can imagine, annoying. I thought it was just a rare bug and I was unlucky, but today it happened again so I have collected what I can. It seems that when I try to connect to a running session there is *sometimes* a crash of nxagent. Not always, but when it happens x2go terminates the session. I do not know why x2go terminates the session - surely it should allow me to retry the connect? Anyway, everything in that session is lost, so this problem is fatal as well as annoying. The connection is to localhost, so there's no network failure (despite the suggestion of the error message). I hope this isn't a problem with the latest nx 3.5.0.32 ... :-/ please let me know how I can help any further. many thanks! Rob ----------- x2goclient: NXPROXY - Version 3.5.0 Copyright (C) 2001, 2010 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '9703'. Session: Starting session at 'Wed Jul 22 16:46:43 2015'. Info: Using abstract X11 socket in kernel namespace for accessing DISPLAY=:0. Info: Connecting to remote host 'localhost:31001'. Info: Connection to remote proxy 'localhost:31001' established. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_24'. Assuming agent session. Info: Using LAN link parameters 1536/24/1/0. 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: Forwarding X11 connections to display ':0'. Session: Session started at 'Wed Jul 22 16:46:43 2015'. Info: Established X server connection. Info: Using shared memory parameters 0/0K. Error: Failure reading from the peer proxy. Error: Connection with remote peer broken. Error: Please check the state of your network and retry. Session: Terminating session at 'Wed Jul 22 16:46:44 2015'. Session: Session terminated at 'Wed Jul 22 16:46:44 2015'. ----------- syslog (note the first 16:46:44 entry which contains the segfault) Jul 22 16:46:43 capc85 /usr/bin/x2goresume-session: client 127.0.0.1 has successfully resumed session with ID rgi-50-1437563485_stDKDE_dp24 Jul 22 16:46:44 capc85 kernel: [20606.521201] x2goagent[31916]: segfault at e0 ip 00000000004a658e sp 00007ffcbf2cf170 error 4 in nxagent[400000+555000] Jul 22 16:46:44 capc85 /usr/bin/x2gomountdirs[9804]: successfully mounted rgi@127.0.0.1:30003/home/rgi/.x2go/S-rgi-50-1437563485_stDKDE_dp24/spool to /tmp/.x2go-rgi/spool/C-rgi-50-1437563485_stDKDE_dp24 Jul 22 16:46:44 capc85 /usr/bin/x2gosetkeyboard: Setting X keyboard according to /home/rgi/.x2go/C-rgi-50-1437563485_stDKDE_dp24/keyboard Jul 22 16:46:44 capc85 /usr/bin/x2goumount-session[10024]: successfully unmounted "/tmp/.x2go-rgi/spool/C-rgi-50-1437563485_stDKDE_dp24" Jul 22 16:46:46 capc85 /usr/sbin/x2gocleansessions[1734]: rgi-50-1437563485_stDKDE_dp24, pid 31916 cleaning up stale X11 socket file: /tmp/.X11-unix/X50 Jul 22 16:46:46 capc85 /usr/sbin/x2gocleansessions[1734]: rgi-50-1437563485_stDKDE_dp24, pid 31916 cleaning up stale X11 lock file: /tmp/.X50-lock ------------- ~/.x2goclient/sessions: [20150414145525991] speed=4 pack=16m-jpeg quality=9 fstunnel=true export= iconvto=UTF-8 iconvfrom=ISO8859-1 useiconv=false fullscreen=false multidisp=false display=1 maxdim=false rdpclient=rdesktop directrdpsettings= width=800 height=600 dpi=96 setdpi=true xinerama=false usekbd=true layout=us type=auto sound=false soundsystem=pulse startsoundsystem=true soundtunnel=true defsndport=true sndport=4713 print=true name=local desktop icon=:icons/128x128/x2gosession.png host=localhost user=rgi key= rdpport=3389 sshport=22 autologin=true krblogin=false directrdp=false rootless=false published=false applications=WWWBROWSER, MAILCLIENT, OFFICE, TERMINAL command=KDE rdpoptions= rdpserver= xdmcpserver=localhost usesshproxy=false sshproxytype=SSH sshproxyuser= sshproxykeyfile= sshproxyhost= sshproxyport=22 sshproxysamepass=false sshproxysameuser=false sshproxyautologin=false clipboard=both krbdelegation=false sshproxykrblogin=false -------------- System information: Linux Kubuntu 14.04, 16 core Intel i7-5960X, kernel 4.1.3-040103-generic #201507220129, libc 2.19-0ubuntu6.6 packages installed (from "dpkg -l" and grepped) i x2goagent 2:3.5.0.32-0~668~ubuntu14.04.1 all X2Go agent ii x2goclient 4.0.4.0-0~1044~ubuntu14.04.1 amd64 X2Go Client application (Qt4) ii x2goserver 4.0.1.19-0~1064~ubuntu14.04.1 amd64 X2Go server daemon scripts ii x2goserver-extensions 4.0.1.19-0~1064~ubuntu14.04.1 all X2Go server daemon scripts (extensions) ii x2goserver-fmbindings 4.0.1.19-0~1064~ubuntu14.04.1 all Generic (freedesktop-based) file manager bindings for X2Go ii x2goserver-xsession 4.0.1.19-0~1064~ubuntu14.04.1 all X2Go server daemon scripts (Xsession runner) ii libnx-x11-6:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 client-side library ii libnx-xcomposite1:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 Composite extension library ii libnx-xdamage1:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 damaged region extension library ii libnx-xdmcp6:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 Display Manager Control Protocol library ii libnx-xext6:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 miscellaneous extension library ii libnx-xfixes3:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 miscellaneous 'fixes' extension library ii libnx-xinerama1:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 Xinerama extension library ii libnx-xpm4:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 pixmap library ii libnx-xrandr2:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 RandR extension library ii libnx-xrender1:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 Rendering Extension client library ii libnx-xtst6:amd64 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 nx-X11 Testing -- Record extension library ii nx-x11-common 2:3.5.0.32-0~668~ubuntu14.04.1 all nx-X11 (common files) ii nxagent 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 NX agent ii nxproxy 2:3.5.0.32-0~668~ubuntu14.04.1 amd64 NX proxy

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Bug#1025: Still various unstranslated GUI elements
by Mike Gabriel 05 May '16

05 May '16

Package: x2goclient Severity: minor Version: 4.0.5.1 Hi all, I still see various untranslated string in X2Go Client 4.0.5.1: (1) The little down-arrow on session cards: "Session preferences..." "Create session icon on desktop" (2) Main menu: Session -> "Session Management", "Create session icon on desktop" (3) Session Prefernces dialog window: Session Tab [x] Try autologin ... Input/Output Tab (.) Auto-detect keyboard settings Sharing [x] Use port forwarding... About X2Go Client -> Description text is in English (4) possibly more... I checked this with LANG=de_DE.UTF-8 and LANG=es_ES.UTF-8. The issues occur in both languages, so I presume the causes are in the original code somewhere. Greets, 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/mailxchange/kronolith/fb.php?u=m.gabriel%4…

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The cygwin sshd problem [advice wanted]
by Mike DePaulo 29 Apr '16

29 Apr '16

For those who don't know about the issue with X2Go Client for Windows that is holding up its 4.0.5.1 release, upgrading cygwin sshd from 6.8p1-1 to 7.1p2-1 broke our folder sharing & printer sharing feature. After I added the cygwin sshd logging feature, I see this in the sshd log file: Unable to negotiate with 127.0.0.1: no matching host key type found. ... http://pastebin.com/M7CeySQ9 After doing some research, it looks like this is the incompatible change: http://www.openssh.com/txt/release-7.0 * Support for ssh-dss, ssh-dss-cert-* host and user keys is disabled by default at run-time. These may be re-enabled using the instructions at http://www.openssh.com/legacy.html What I am wondering is this: Are we limiting ourselves to ssh-dss-cert-* keys, or is sshfs limiting us? -Mike

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Bug#1032: x2gocdmanager failing in a number of corner cases
by Arne Wichmann 29 Apr '16

29 Apr '16

Package: x2gocdmanager Version: 1.1.0.2-0x2go1+git20150607.485+jessie.main.1 Tags: patch I found a number of cases where x2gocdmanager was not mounting/unmounting CDROMs as expected. Namely: - When CDs were changed quickly, the change of CD was not detected and the old CD stayed mounted - Sometimes the umount failed because some files were still open (and similar cases). In that case x2gocdmanager considered the CD umounted and all further tries to mount a CD failed. I append a patch which apart from these problem cases - creates support for a log file, so problems can be more easily debugged. If the log file is not present a warning will be printed, but x2gocdmanager will work without logging as it was before - makes an effort to unmount everything in /media at the start of the manager - includes some basic debug output so that further problems can be pinpointed more easily Indentations are a bit broken in the patch... cu AW --- /usr/sbin/x2gocdmanager.dpkg-dist 2016-04-29 16:01:19.000000000 +0200 +++ /usr/sbin/x2gocdmanager 2016-04-29 16:01:41.000000000 +0200 @@ -46,11 +46,19 @@ # silence this daemon script completely... close(STDIN); - close(STDOUT); - close(STDERR); $SIG{TERM}=\&catch_term; + # do not die here - file unwritable is a way to silence this + open(STDOUT,">>/var/log/x2gocdmanager") || warn "open failed: $!"; + open(STDERR,">>&STDOUT") || print("open failed: $!"); + print("Started ",time(),"\n"); + + # unmount everything which is mounted in /media + for (glob("/media/*")) { + system("umount -ff $_") or warn "could not umount $_"; + } + my @mounted; my @idedrives; @@ -108,7 +116,11 @@ } elsif($rez==101) { - push(@cdarray,@drives[$i]); + # do not push if media change detected + # this will umount the CD. after the next + # iteration the new one will be mounted + $_=ioctl(CDROM,0x5325,0); + push(@cdarray,@drives[$i]) unless $_==1; } close (CDROM); } @@ -129,33 +141,35 @@ open (D,">",expand_filename("~x2gothinclient/export/$name.unexport")); print D "unexport=/media/$name\n"; close(D); - system("umount -ff /media/$name"); - + print("umounting $name\n"); + if (system("umount -ff /media/$name")==0) { system("killall x2goejectcd"); splice(@mounted,$i,1); } } + } # enumerate all available CD/DVD devices for my $i (0..$#cdarray) { # mount the CD/DVD device if not yet mounted... my @arr=grep { "$_" eq "@cdarray[$i]" } @mounted; - if (@arr == 0) - { + if (@arr == 0) { my @name=split("/","@cdarray[$i]"); my $name="CDROM-@name[2]"; mkdir("/media"); mkdir("/media/$name"); + print("mounting @cdarray[$i]\n"); { open (D,">",expand_filename("~x2gothinclient/export/$name")); print D "export=/media/$name\n"; close(D); + print("mount worked: @cdarray[$i]\n"); push (@mounted,@cdarray[$i]); system("killall x2goejectcd"); system("DISPLAY=:0 x2goejectcd&"); - } + } else { warn("mount failed: $?"); } } } } -- [...] If you don't want to be restricted, don't agree to it. If you are coerced, comply as much as you must to protect yourself, just don't support it. Noone can free you but yourself. (crag, on Debian Planet) Arne Wichmann (aw(a)saar.de)

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Bug#1022: x2goserver fails to start with most recent Ubuntu 16.04 updates (20160408)
by Nikolaos Kefalas 26 Apr '16

26 Apr '16

I managed to get Mate in 16.04 working by using system dafault value for XDG_DATA_DIRS. I set in .profile export GSETTINGS_SCHEMA_DIR=/usr/share/mate:/usr/share/mate:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop export XDG_DATA_DIRS=/usr/share/mate:/usr/share/mate:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop

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Bug#1022: x2goserver fails to start with most recent Ubuntu 16.04 updates (20160408)
by Viktor Bale 26 Apr '16

26 Apr '16

Confirmed with Ubuntu Mate 16.04. However, the suggested workaround in the previous post results in a lightdm login loop. Link to forum thread about this bug on Ubuntu Mate forum: https://ubuntu-mate.community/t/x2go-not-working-with-mate

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Bug#1029: Debian package for stretch have dependencies on obsolete packages
by Thierry Murgue 26 Apr '16

26 Apr '16

Package: x2goserver Version: 4.0.1.19-0x2go2+git20160126.1064+stretch.main.1 x2goserver depends on x2goagent which depends on nxagent which depends on libxcomp3 which depends on libpng12-0 which is flagged obsolete. Please update packages dependency (and maybe adjust source) to depends only on libpng16-16 (version 1.6) Thanks, Best Regards, -- Thierry MURGUE.

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About X2go LDAP Password Expire
by Orkun BALCI 25 Apr '16

25 Apr '16

Dear All, I have newly finished developing code block for LDAP Password Expiry Checker and Force Change Password Dialog on C++ X2goclient. Now, I want to send a pull request to checkout from my GitHub repository. Moreover, I am looking forward to develop this to other modules in X2go environment. I need to keep in close contact with the core developers for this issue. Best Regards, Orkun BALCI

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x2go-dev April 2016