Hello to all.
I just joined the mailing list. First, I would like to say a word about how great I have found x2go since I started using it : I was looking for a remote desktop solution that was easy to set up and x2go worked amazingly easily and well.
Now the purpose of this email: After tinkering around my x2go server install, it seems I have broken it <https://ubuntuforums.org/showthread.php?t=2386633>. I am not here to ask for help me fixing it (although, I wouldn't mind) but I have been looking for instructions in the x2go wiki <https://wiki.x2go.org/doku.php/wiki:advanced:start> about where to look for the origin of errors (logs, etc ...) and I have not found such page.
Indeed, I already searched the /var/log/auth.log , but haven't found a clue of what's wrong. So, I thought there must be some basic steps that one may undertake looking for what's wrong (logs to search, command lines to execute and check the result ...) but I cannot figure out which ones.
I am willing to help the community by filling some pages in the wiki (so nobody will have to bother the mailing list again asking what I am currently asking) - I just need to find out how one create an account for the wiki.
Regards / Grüße and thanks for your work !
Manfred A.
On my system, x2go installs to these directories. /etc/x2go/ /var/lib/x2go /usr/share/x2go /usr/lib/x2go
this file should tell you more about your logs: /usr/lib/x2go/x2gosyslog
I see sessions connecting in the journalctl logs (I'm systemd).
To troubleshoot, I usually turn up debugging in: /etc/x2go/x2goserver.conf
Then I run the agent from the comand line with --debugging on my client.
Hope that helps.
Paul
On Tue, Mar 13, 2018 at 4:13 PM, Manfred Amoureux <mamoureux7@gmail.com> wrote:
Hello to all.
I just joined the mailing list. First, I would like to say a word about how great I have found x2go since I started using it : I was looking for a remote desktop solution that was easy to set up and x2go worked amazingly easily and well.
Now the purpose of this email: After tinkering around my x2go server install, it seems I have broken it <https://ubuntuforums.org/showthread.php?t=2386633>. I am not here to ask for help me fixing it (although, I wouldn't mind) but I have been looking for instructions in the x2go wiki <https://wiki.x2go.org/doku.php/wiki:advanced:start> about where to look for the origin of errors (logs, etc ...) and I have not found such page.
Indeed, I already searched the /var/log/auth.log , but haven't found a clue of what's wrong. So, I thought there must be some basic steps that one may undertake looking for what's wrong (logs to search, command lines to execute and check the result ...) but I cannot figure out which ones.
I am willing to help the community by filling some pages in the wiki (so nobody will have to bother the mailing list again asking what I am currently asking) - I just need to find out how one create an account for the wiki.
Regards / Grüße and thanks for your work !
Manfred A.
x2go-dev mailing list x2go-dev@lists.x2go.org https://lists.x2go.org/listinfo/x2go-dev
- On 03/13/2018 09:13 PM, Manfred Amoureux wrote:
Now the purpose of this email: After tinkering around my x2go server install, it seems I have broken it <https://ubuntuforums.org/showthread.php?t=2386633>. I am not here to ask for help me fixing it (although, I wouldn't mind) but I have been looking for instructions in the x2go wiki <https://wiki.x2go.org/doku.php/wiki:advanced:start> about where to look for the origin of errors (logs, etc ...) and I have not found such page.
Debugging is complicated. We do have a page at https://wiki.x2go.org/doku.php/wiki:development:debugging
But most of the time there are special circumstances that lead to failure, which cannot easily be ticked off using a checklist.
Even when it would be, the output is huge and usually needs proper interpretation. Difficult to do so without knowing or at least looking at the code.
Indeed, I already searched the /var/log/auth.log , but haven't found a clue of what's wrong. So, I thought there must be some basic steps that one may undertake looking for what's wrong (logs to search, command lines to execute and check the result ...) but I cannot figure out which ones.
The general syslog, after enabling server debug output, and client debug output (x2goclient --debug) is more important, but this issue looks a lot like https://github.com/ArcticaProject/nx-libs/issues/679
I've only fixed the screen positioning issue today - nightly builds should already have that fix.
A workaround is to start x2goclient on your first (normally also primary) display. Are you starting it on a secondary (non-first) display? If yes, then it's likely that this is causing the trouble.
I am willing to help the community by filling some pages in the wiki (so nobody will have to bother the mailing list again asking what I am currently asking) - I just need to find out how one create an account for the wiki.
You can't. User registration has been disabled due to spam bots creating accounts and vandalizing pages. Wiki administrators (Heinz, me) can create new accounts for users.
I typically need an email address (mandatory), a nickname (optional but preferred, otherwise I'll guess it) and a real name (optional) for registration and I will create an account accordingly.
Mihai
- On 03/15/2018 12:36 PM, Mihai Moldovan wrote:
The general syslog, after enabling server debug output, and client debug output (x2goclient --debug) is more important, but this issue looks a lot like https://github.com/ArcticaProject/nx-libs/issues/679
I've only fixed the screen positioning issue today - nightly builds should already have that fix.
A workaround is to start x2goclient on your first (normally also primary) display. Are you starting it on a secondary (non-first) display? If yes, then it's likely that this is causing the trouble.
After skimming your original post again, I also wonder if you have partly upgraded packages on that machine.
dpkg -l | grep -Ei '(x2go|nx)'
Mihai
Hello. Thanks for helping.
First the result of the command :
$ dpkg -l | grep -Ei '(x2go|nx)'
ii inxi 2.2.35-0ubuntu1 all full featured system information script ii libnx-x11-6:amd64 2:3.5.99.15-0~201803072246~ubuntu16.04.1 amd64 nxagent's libNX_X11 client-part library ii libx2go-log-perl 4.1.0.0-0~1517~ubuntu16.04.1 all Perl X2Go::Log package ii libx2go-server-db-perl 4.1.0.0-0~1517~ubuntu16.04.1 amd64 Perl X2Go::Server:DB package ii libx2go-server-perl 4.1.0.0-0~1517~ubuntu16.04.1 all Perl X2Go::Server package ii libxcomp3:amd64 2:3.5.99.15-0~201803072246~ubuntu16.04.1 amd64 NX compression library ii libxcompshad3:amd64 2:3.5.99.15-0~201803072246~ubuntu16.04.1 amd64 NX shadowing library ii nx-x11-common 2:3.5.99.15-0~201803072246~ubuntu16.04.1 all nx-X11 (common files) ii nxagent 2:3.5.99.15-0~201803072246~ubuntu16.04.1 amd64 Nested Xserver (aka NX Agent) supporting the NX compression protocol ii nxproxy 2:3.5.99.15-0~201803072246~ubuntu16.04.1 amd64 NX proxy rc x2goagent 2:3.5.0.33-0~710~ubuntu16.04.1 all X2Go agent ii x2goserver 4.1.0.0-0~1517~ubuntu16.04.1 amd64 X2Go server daemon scripts ii x2goserver-common 4.1.0.0-0~1517~ubuntu16.04.1 amd64 X2Go Server (common files) ii x2goserver-extensions 4.1.0.0-0~1517~ubuntu16.04.1 all X2Go Server (extension support) ii x2goserver-fmbindings 4.1.0.0-0~1517~ubuntu16.04.1 all X2Go Server (file manager bindings) ii x2goserver-printing 4.1.0.0-0~1517~ubuntu16.04.1 all X2Go server (printing support) ii x2goserver-x2goagent 4.1.0.0-0~1517~ubuntu16.04.1 all X2Go Server's X2Go Agent ii x2goserver-xsession 4.1.0.0-0~1517~ubuntu16.04.1 all X2Go Server (Xsession runner)
Now, when I have a look at /var/log/syslog, I see this : Mar 15 12:55:02 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:02 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:04 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:04 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:06 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:06 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:08 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:08 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:11 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:11 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:13 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:13 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:15 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:15 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:17 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:17 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:20 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:20 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:22 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:22 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:24 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:24 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:26 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:26 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:28 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:28 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:31 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:31 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:33 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:33 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:35 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:35 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:37 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:37 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:39 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:39 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:42 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:42 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:44 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:44 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:46 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:46 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:48 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:48 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:51 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:51 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:53 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:53 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:55 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:55 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:57 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:57 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:55:59 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:55:59 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:02 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:02 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:04 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:04 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:06 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:06 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:08 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:08 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:10 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:10 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:13 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:13 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:15 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:15 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:17 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:17 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:19 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:19 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:21 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:22 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:24 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:24 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:26 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:26 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:28 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:28 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:30 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:30 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:33 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:33 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN Mar 15 12:56:35 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec Mar 15 12:56:35 ServeurITeN x2golistsessions_sql: executing external command ,,/usr/lib/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroot,ServeurITeN
*ServeurITeN* is the name of the machine. I have not been trying to connect with x2go to this machine since the last reboot. Does it look like it's trying to execute something that fails constantly ?
Manfred A.
- On 03/15/2018 12:59 PM, Manfred Amoureux wrote:
$ dpkg -l | grep -Ei '(x2go|nx)'
[...]
Okay, up to date and no partially installed packages or version mismatched for that matter.
That still leaves the "crash on connect" bug if the window was started a window different from the first one in a multi-head setup.
Now, when I have a look at /var/log/syslog, I see this : Mar 15 12:55:02 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec [...]
/ServeurITeN/ is the name of the machine. I have not been trying to connect with x2go to this machine since the last reboot. Does it look like it's trying to execute something that fails constantly ?
Nope, it's just the cleanup process that loops through all session data and syncs up or terminates stale session as necessary.
It's spammy (hence why I said "a lot of data"), but perfectly normal.
You'll have to make an actual connection attempt to see more interesting stuff.
Mihai
Hello again Mihai.
I recorded a screen capture while trying to start a connection from another computer. See the link below. As you can see, it seems the connection gets opened but the window crashes immediately. I have tried from several computers (including one with Windows) so I don't think it's a problem on the client side.
I have attached an extract of the /var/log/syslog file these last minutes. I see nothing that looks like an error to me. Obviously, you should be able to interpret it better than me. I have also restarted x2go (*sudo systemctl stop x2goserver.service* and then *sudo systemctl start x2goserver.service* ) after changing the /etc/x2go/x2goserver.conf file with logging to *debug*. That is the second text file attached.
In it, I can see : Mar 15 14:51:15 ServeurITeN /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID manfred-50-1521121872_stDXFCE_dp24 Which means, I guess, the session was properly started. However, further on, I can also see : Mar 15 14:51:22 ServeurITeN x2gogetstatus: db_getstatus called, session ID: manfred-50-1521121872_stDXFCE_dp24, return value: Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: removed from database, not updating status. Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: in failed state, but agent is gone, forgetting. Is that some kind of failure ?
It is also interesting to see that when I issue a *who* command with the Linux Terminal , there is one extra session under my login.
So I tried opening a x2go session with another login, which also failed but with a different error message : "*Failed to start X2Go Agent session with ID formation-50-1521122343_stDXFCE_dp24. X2Go Agent terminated unexpectedly. Aborting session startup.*" I then restarted the x2goserver.service again and tried again with the other user account and got the same error as for the first user ("The connection with the remote server was shut down. Please check the state of your network connection.").
Any idea ?
x2go-2018-03-15_14.37.00.mkv <https://drive.google.com/file/d/1uSWROCNb54LSY2dhYwS6E2b5D5y_FFzQ/view?usp=drive_web>
Manfred Amoureux Tel: (+33)6.800.343.16
2018-03-15 13:05 GMT+01:00 Mihai Moldovan <ionic@ionic.de>:
- On 03/15/2018 12:59 PM, Manfred Amoureux wrote:
$ dpkg -l | grep -Ei '(x2go|nx)'
[...]
Okay, up to date and no partially installed packages or version mismatched for that matter.
That still leaves the "crash on connect" bug if the window was started a window different from the first one in a multi-head setup.
Now, when I have a look at /var/log/syslog, I see this : Mar 15 12:55:02 ServeurITeN x2golistsessions_sql: executing external command ,,x2gopath'' with args: libexec [...]
/ServeurITeN/ is the name of the machine. I have not been trying to connect with x2go to this machine since the last reboot. Does it look like it's trying to execute something that fails constantly ?
Nope, it's just the cleanup process that loops through all session data and syncs up or terminates stale session as necessary.
It's spammy (hence why I said "a lot of data"), but perfectly normal.
You'll have to make an actual connection attempt to see more interesting stuff.
Mihai
- On 03/15/2018 03:07 PM, Manfred Amoureux wrote:
I recorded a screen capture while trying to start a connection from another computer. See the link below. As you can see, it seems the connection gets opened but the window crashes immediately. I have tried from several computers (including one with Windows) so I don't think it's a problem on the client side.
Classic pattern of https://github.com/ArcticaProject/nx-libs/issues/677
Will be fixed with the next nx-libs release, but I cannot tell when that will be. Ideally I'd like to see more xinerama changes/fixes to make it worthwhile.
I have attached an extract of the /var/log/syslog file these last minutes. I see nothing that looks like an error to me. Obviously, you should be able to interpret it better than me. I have also restarted x2go (/sudo systemctl stop x2goserver.service/ and then /sudo systemctl start x2goserver.service/ ) after changing the /etc/x2go/x2goserver.conf file with logging to /debug/. That is the second text file attached.
In it, I can see : Mar 15 14:51:15 ServeurITeN /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID manfred-50-1521121872_stDXFCE_dp24 Which means, I guess, the session was properly started.
Well, that message is an euphemism. We launched the binary, but everything that happens after that is unknown since we immediately put the process into background. But yeah, having it spawned nxagent is good.
However, further on, I can also see : Mar 15 14:51:22 ServeurITeN x2gogetstatus: db_getstatus called, session ID: manfred-50-1521121872_stDXFCE_dp24, return value: Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: removed from database, not updating status. Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: in failed state, but agent is gone, forgetting. Is that some kind of failure ?
That indicates that x2goagent/nxagent died after starting up.
It is also interesting to see that when I issue a /who/ command with the Linux Terminal , there is one extra session under my login.
Yup, X2Go uses SSH connections for everything.
So I tried opening a x2go session with another login, which also failed but with a different error message : "/Failed to start X2Go Agent session with ID formation-50-1521122343_stDXFCE_dp24. X2Go Agent terminated unexpectedly. Aborting session startup./" I then restarted the x2goserver.service again and tried again with the other user account and got the same error as for the first user ("The connection with the remote server was shut down. Please check the state of your network connection.").
The first error message is weird, but explainable by the fact that the proxy was not quick enough to connect in the first place (or something like this).
Right now, you have two options: wait for a new nx-libs release (as said, unspecified time) or switch to the nightly/heuler repository that contains a fix for this issue... and switch back to the stable version once the new version has been properly released.
Mihai
Ok.
Now that you have attracted my attention this git request ( *nxagent crashes when moving the session window into another screen* ), it actually looked more like a client-side issue, so I tested again from another computer (with Windows 7 and a single screen) and while at the first attempt the connection failed with a message that let me think it was because there was an open connection on the server with this user, after a reboot from the server machine, the connection now works from this computer.
So I guess it really is a client problem now. I am first going to to try uninstalling and reinstalling x2go client from my computer.
Manfred Amoureux Tel: (+33)6.800.343.16
2018-03-15 15:16 GMT+01:00 Mihai Moldovan <ionic@ionic.de>:
- On 03/15/2018 03:07 PM, Manfred Amoureux wrote:
I recorded a screen capture while trying to start a connection from another computer. See the link below. As you can see, it seems the connection gets opened but the window crashes immediately. I have tried from several computers (including one with Windows) so I don't think it's a problem on the client side.
Classic pattern of https://github.com/ArcticaProject/nx-libs/issues/677
Will be fixed with the next nx-libs release, but I cannot tell when that will be. Ideally I'd like to see more xinerama changes/fixes to make it worthwhile.
I have attached an extract of the /var/log/syslog file these last minutes. I see nothing that looks like an error to me. Obviously, you should be able to interpret it better than me. I have also restarted x2go (/sudo systemctl stop x2goserver.service/ and then /sudo systemctl start x2goserver.service/ ) after changing the /etc/x2go/x2goserver.conf file with logging to /debug/. That is the second text file attached.
In it, I can see : Mar 15 14:51:15 ServeurITeN /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID manfred-50-1521121872_stDXFCE_dp24 Which means, I guess, the session was properly started.
Well, that message is an euphemism. We launched the binary, but everything that happens after that is unknown since we immediately put the process into background. But yeah, having it spawned nxagent is good.
However, further on, I can also see : Mar 15 14:51:22 ServeurITeN x2gogetstatus: db_getstatus called, session ID: manfred-50-1521121872_stDXFCE_dp24, return value: Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: removed from database, not updating status. Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: in failed state, but agent is gone, forgetting. Is that some kind of failure ?
That indicates that x2goagent/nxagent died after starting up.
It is also interesting to see that when I issue a /who/ command with the Linux Terminal , there is one extra session under my login.
Yup, X2Go uses SSH connections for everything.
So I tried opening a x2go session with another login, which also failed but with a different error message : "/Failed to start X2Go Agent session with ID formation-50-1521122343_stDXFCE_dp24. X2Go Agent terminated unexpectedly. Aborting session startup./" I then restarted the x2goserver.service again and tried again with the other user account and got the same error as for the first user ("The connection with the remote server was shut down. Please check the state of your network connection.").
The first error message is weird, but explainable by the fact that the proxy was not quick enough to connect in the first place (or something like this).
Right now, you have two options: wait for a new nx-libs release (as said, unspecified time) or switch to the nightly/heuler repository that contains a fix for this issue... and switch back to the stable version once the new version has been properly released.
Mihai
You can find the nxagent log in ~/.x2go/C-.../session.log. maybe that contains some hints.
Uli
Mihai Moldovan <ionic@ionic.de> schrieb am Do., 15. März 2018, 15:18:
- On 03/15/2018 03:07 PM, Manfred Amoureux wrote:
I recorded a screen capture while trying to start a connection from another computer. See the link below. As you can see, it seems the connection gets opened but the window crashes immediately. I have tried from several computers (including one with Windows) so I don't think it's a problem on the client side.
Classic pattern of https://github.com/ArcticaProject/nx-libs/issues/677
Will be fixed with the next nx-libs release, but I cannot tell when that will be. Ideally I'd like to see more xinerama changes/fixes to make it worthwhile.
I have attached an extract of the /var/log/syslog file these last minutes. I see nothing that looks like an error to me. Obviously, you should be able to interpret it better than me. I have also restarted x2go (/sudo systemctl stop x2goserver.service/ and then /sudo systemctl start x2goserver.service/ ) after changing the /etc/x2go/x2goserver.conf file with logging to /debug/. That is the second text file attached.
In it, I can see : Mar 15 14:51:15 ServeurITeN /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID manfred-50-1521121872_stDXFCE_dp24 Which means, I guess, the session was properly started.
Well, that message is an euphemism. We launched the binary, but everything that happens after that is unknown since we immediately put the process into background. But yeah, having it spawned nxagent is good.
However, further on, I can also see : Mar 15 14:51:22 ServeurITeN x2gogetstatus: db_getstatus called, session ID: manfred-50-1521121872_stDXFCE_dp24, return value: Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: removed from database, not updating status. Mar 15 14:51:22 ServeurITeN x2gocleansessions: manfred-50-1521121872_stDXFCE_dp24: in failed state, but agent is gone, forgetting. Is that some kind of failure ?
That indicates that x2goagent/nxagent died after starting up.
It is also interesting to see that when I issue a /who/ command with the Linux Terminal , there is one extra session under my login.
Yup, X2Go uses SSH connections for everything.
So I tried opening a x2go session with another login, which also failed but with a different error message : "/Failed to start X2Go Agent session with ID formation-50-1521122343_stDXFCE_dp24. X2Go Agent terminated unexpectedly. Aborting session startup./" I then restarted the x2goserver.service again and tried again with the other user account and got the same error as for the first user ("The connection with the remote server was shut down. Please check the state of your network connection.").
The first error message is weird, but explainable by the fact that the proxy was not quick enough to connect in the first place (or something like this).
Right now, you have two options: wait for a new nx-libs release (as said, unspecified time) or switch to the nightly/heuler repository that contains a fix for this issue... and switch back to the stable version once the new version has been properly released.
Mihai
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