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Bug#1509: Unsupported pack methods
by Ulrich Sibiller 01 Dec '20

01 Dec '20

Package: x2goclient Version: 4.1.2.2 In the session configuration users can choose compressions methods with "rdp" and "rfb" in the name. Both compression methods are not supported by nx-libs since version 3.0.x and will lead to no image packing being used at all. From the session log: ... Loop: PANIC! Can't identify pack method for string '16m-rdp-compressed'. Error: Can't identify pack method for string '16m-rdp-compressed' ... Info: Using pack method 'none' with session 'unix-kde-depth_32'. ... This is absolutely counter-intuitive. Users selecting a compression method on purpose surely do not want to end up with no image compression at all. So they should be dropped completely.

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Bug#1508: non Latin 1 passwords are rejected
by Sylvain Cuaz 27 Nov '20

27 Nov '20

Package: x2goclient Version: 4.1.2.2 Passwords with accents are rejected by x2goclient while working fine directly with ssh. Client OS Ubuntu 20.04.1 LTS with libssh 0.9.3-2ubuntu2.1 Server OS Ubuntu 16.04.6 LTS According to the documentation of ssh_userauth_password(), passwords should be passed as UTF-8. But sshmasterconnection.cpp passes auth_password.toLatin1(). I think just changing to auth_password.toUtf8() should suffice. Same thing goes for ssh_userauth_kbdint_setanswer() and maybe other calls. https://api.libssh.org/stable/group__libssh__auth.html#ga50c0c150f8c4703e7e… https://api.libssh.org/stable/group__libssh__auth.html#ga75e44b1f27059a0008…

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X2Go 4.1.0.3-9 on Fedora 32 crash on login, x2gocheckport: line 131: syntax error in expression
by Robert Kudyba 16 Nov '20

16 Nov '20

X2Go was automatically updated a few days ago and stopped allowing users to login on one of our hosts. x2goserver-4.1.0.3-9.fc32.x86_64 5.8.18-200.fc32.x86_64 >From the alert box after trying to log in: Connection failed. /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") /usr/lib64/x2go/x2gocheckport: line 131: connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)") Unable to find free display port or insert new session into database; parameters: port (50), hostname (myhost.edu) and session name (). from /var/log/messages: Nov 16 09:31:20 ourdomain kernel: audit: type=1105 audit(1605537080.463:18641): pid=1392265 uid=0 auid=1000 ses=401 msg='op=PAM:session_open grantors=pam_selinux,pam_loginuid,pam_selinux,pam_namespace, pam_keyinit,pam_keyinit,pam_limits,pam_systemd,pam_unix,pam_umask,pam_lastlog acct="localguy" exe="/usr/sbin/sshd" hostname=xx.xx.xx.xx addr=xx.xx.xx.xx terminal=ssh res=success' Nov 16 09:31:20 ourdomain kernel: audit: type=2404 audit(1605537080.463:18642): pid=1392275 uid=0 auid=1000 ses=401 msg='op=destroy kind=server fp=SHA256:82:cc:b1:c1:18:02:11:25:68:a7:eb:ec:2a:ed:20:5e :81:1e:66:13:59:f4:7e:ea:ea:06:90:49:81:e8:33:f4 direction=? spid=1392275 suid=0 exe="/usr/sbin/sshd" hostname=? addr=? terminal=? res=success' Nov 16 09:31:23 ourdomain /usr/bin/x2gostartagent[1392479]: no free display number available, cannot start new session. Retrying (run 1). Nov 16 09:31:23 ourdomain /usr/bin/x2gostartagent[1392488]: no free display number available, cannot start new session. Retrying (run 2). Nov 16 09:31:23 ourdomain /usr/bin/x2gostartagent[1392497]: no free display number available, cannot start new session. Retrying (run 3). Nov 16 09:31:23 ourdomain /usr/bin/x2gostartagent[1392506]: no free display number available, cannot start new session. Retrying (run 4). Nov 16 09:31:23 ourdomain /usr/bin/x2gostartagent[1392515]: no free display number available, cannot start new session. Retrying (run 5). Nov 16 09:31:23 ourdomain /usr/bin/x2gostartagent[1392524]: no free display number available, cannot start new session. Retrying (run 6). Nov 16 09:31:24 ourdomain /usr/bin/x2gostartagent[1392533]: no free display number available, cannot start new session. Retrying (run 7). Nov 16 09:31:24 ourdomain /usr/bin/x2gostartagent[1392546]: no free display number available, cannot start new session. Retrying (run 8). Nov 16 09:31:24 ourdomain /usr/bin/x2gostartagent[1392555]: no free display number available, cannot start new session. Retrying (run 9). Nov 16 09:31:24 ourdomain /usr/bin/x2gostartagent[1392564]: no free display number available, cannot start new session. Retrying (run 10). Nov 16 09:31:24 ourdomain /usr/bin/x2gostartagent[1392565]: Unable to find free display port or insert new session into database; parameters: port (50), hostname (ourdomain.edu) and session name (). Running x2godbadmin --createdb made no difference. I've seen this mentioned on the list previously in 2018 but no response: https://lists.x2go.org/pipermail/x2go-user/2018-July/005172.html and a CentOS user who did not find a solution at https://centosfaq.org/centos/problems-with-x2go/

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Bug#1505: Fix sftp-server path for opensuse tumbleweed
by balasr 15 Nov '20

15 Nov '20

Package: x2goclient Version: 4.1.2.2 Tag: patch Recently Opensuse Tumbleweed moved the location of where they put the sftp-server binary. See this bug report on the opensuse bugtracker: https://bugzilla.opensuse.org/show_bug.cgi?id=1175964 This patch adds this path to the search path

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Bug#1503: x2goagent coredump on fedora 33
by Gianluca Parmiggiani 06 Nov '20

06 Nov '20

Package: x2goagent Version: 4.1.0.3 After upgrading from fedora workstation 32 to fedora workstation 33 I'm no longer able to use x2go for remote work (I asked a linux workstation and configured it myself). X2go has been running fine since f31. Often after a reboot I can still use x2go for some minutes then it starts to close unexpectedly even after a few seconds or when opening new windows after session creation. Here is one of the many core dumps: PID: 4390 (x2goagent) UID: 1000 (gparmiggiani) GID: 1000 (gparmiggiani) Signal: 6 (ABRT) Timestamp: Tue 2020-11-03 12:58:16 CET (19h ago) Command Line: x2goagent -nolisten tcp -nolisten tcp -dpi 144 -R -auth /home/gparmiggiani/.Xauthority -geometry 3840x2100 -name X2GO-gparmiggiani-50-1604404680_stRx2go-sess-run_dp32 :50 Executable: /usr/bin/nxagent Control Group: /user.slice/user-1000.slice/session-6.scope Unit: session-6.scope Slice: user-1000.slice Session: 6 Owner UID: 1000 (gparmiggiani) Boot ID: d09cf916ba0d4b8ead05e250501dccd1 Machine ID: d1ab05e432c24567859f109be8523fab Hostname: ilmarin.xxx.yyy Storage: /var/lib/systemd/coredump/core.x2goagent.1000.d09cf916ba0d4b8ead05e250501dccd1.4390.1604404696000000.zst Message: Process 4390 (x2goagent) of user 1000 dumped core. Stack trace of thread 4390: #0 0x00007f08394a2bc5 raise (libc.so.6 + 0x3dbc5) #1 0x00007f083948b8a4 abort (libc.so.6 + 0x268a4) #2 0x00007f08394e5127 __libc_message (libc.so.6 + 0x80127) #3 0x00007f083957647a __fortify_fail (libc.so.6 + 0x11147a) #4 0x00007f0839576446 __stack_chk_fail (libc.so.6 + 0x111446) #5 0x000055da7fbec3b1 nxagentCollectPropertyEvent (nxagent + 0xbc3b1) #6 0x000055da7fbcfb43 nxagentDispatchEvents (nxagent + 0x9fb43) #7 0x000055da7fbd678a nxagentWakeupHandler (nxagent + 0xa678a) #8 0x000055da7fbbb153 WaitForSomething (nxagent + 0x8b153) #9 0x000055da7fb93cca Dispatch (nxagent + 0x63cca) #10 0x000055da7fb7262e main (nxagent + 0x4262e) #11 0x00007f083948d1a2 __libc_start_main (libc.so.6 + 0x281a2) #12 0x000055da7fb74a1e _start (nxagent + 0x44a1e) Please let me know if you need more info or testing, the problem is always reproducible. Thanks in advance, Gianluca.

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Bug#1504: Move the project to github/gitlab
by Jo K 05 Nov '20

05 Nov '20

Package: all Version: all A good bug tracker helps a project. This one is clearly not helping. You should move to github or gitlab.

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Bug#1502: macOS X2GoClient keyboard map updates crash specific server applications, spike server CPU usage
by Yearke, Thomas 03 Nov '20

03 Nov '20

Package: x2goclient Version: 4.1.2.2 Tag: patch When the macOS version of X2GoClient is connected to a server, it updates the session's keyboard map every 10 seconds. Depending on how other programs running on the server respond to keyboard map changes, the repeated updates can cause brief CPU usage spikes or (in the case of one of our applications) they can cause freezes and crashes. The attached patch modifies the macOS client to only run the keyboard map update once on session startup. Testing done on my devices showed that this change resolved the issue without introducing noticeable side effects. However, I was not able to find the reason why the keyboard map is being updated regularly, so this may (re)introduce a problem I'm not aware of. Client OS: macOS 10.14.6 Client Software: X2GoClient 4.1.2.2 Server OS: CentOS 7.8 Server Desktop Environment: XFCE 4 Server x2goserver Version: 4.1.0.3 Server x2goserver-xsession Version: 4.1.0.3 Server nxagent Version: 3.5.99.24 Thank you for your consideration! Tom Yearke Software Engineer Science and Engineering Node Services University at Buffalo

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Bug#1490: x2goagent crashes when pasting clipboard contents
by Patrick Reinhart 31 Oct '20

31 Oct '20

Is there any workaround for this problem? Copy and paste is one of my main actions for working from remote. And I have used this feature a lot in the past. Thanks Patrick

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Bug#1501: x2goclient-4.1.2.2-2020.02.13 crashes on Windows 10
by Pedersen, John 30 Oct '20

30 Oct '20

Package: x2GoClient Version: 4.1.2.2-2020.02.13 Summary: The latest version of the Windows x2goclient crashes on the Windows 10 enterprise. Description: I installed the latest x2goclient on a Windows 10 box (X2GoClient_latest_mswin32-setup.exe). certutil -hashfile "C:\Users\john\Downloads\X2GoClient_latest_mswin32-setup.exe" md5 MD5 hash of C:\Users\john\Downloads\X2GoClient_latest_mswin32-setup.exe: 8b1ac4cb969d116c9303ab3fafe50a01 CertUtil: -hashfile command completed successfully. ...when I try to establish a session the application crashes. I do not have any issues when I use an older version of the client (e.g. x2goclient-4.1.2.0-2018.06.22-setup.exe). Here is the output from Event Viewer > Windows Logs > Application: <SNIP> Faulting application name: x2goclient.exe, version: 0.0.0.0, time stamp: 0x057066f0 Faulting module name: ntdll.dll, version: 10.0.19041.546, time stamp: 0xd49544eb Exception code: 0xc0000005 Fault offset: 0x00085d5c Faulting process id: 0x2310 Faulting application start time: 0x01d6aeeb128c7123 Faulting application path: C:\Program Files (x86)\x2goclient\x2goclient.exe Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll Report Id: f5a324c6-d71d-4c15-8664-493947e75922 Faulting package full name: Faulting package-relative application ID: -- Fault bucket 1516194091047313301, type 1 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: x2goclient.exe P2: 0.0.0.0 P3: 057066f0 P4: ntdll.dll P5: 10.0.19041.546 P6: d49544eb P7: c0000005 P8: 00085d5c P9: P10: </SNIP> # Client details Package: x2GoClient, x2goclient-4.1.2.2-2020.02.13 Version: x2goclient-4.1.2.2-2020.02.13 OS: Windows 10 Enterprise version 20H2 OS build: 19042.572 # Server details x2goserver OS: CentOS 6.10 x2goserver version: 4.0.1.20 x2goserver release: 1.el6 -- x2goserver-xsession version: 4.0.1.20 x2goserver-xsession release: 1.el6 -- nxagent version : 3.5.0.32 nxagent release : 3.el6

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Additional image compression algoritms?
by Pär Larsson 26 Oct '20

26 Oct '20

Hi! Thanks for creating x2go, I'm a big fan! In the image compression field there has been progress during recent years. Would there be a point to implementing something like jpeg xl in X2Go? As I understand, it compares favorably to standard jpeg and png in every aspect. But perhaps it would not make a big difference or be difficult? Best, Pär Larsson, Sweden

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