x2go-user January 2021

x2go-user@lists.x2go.org

10 participants
13 discussions

mouse 1 cm too low
by richard lucassen 17 Apr '21

17 Apr '21

Hello list, I have run x2go for many years now without any problem. I have two different servers running Debian testing and x2go 4.1.0.3-5, multiple clients running the same OS and x2go client. I run WindowMaker both on client and servers. This has worked for many years. Weird thing: the active clicking point for the mouse is 1 cm above the mouse. Restarting client and server does not make any difference. AFAIK these x2go versions have not changed (underlying libraries might have of course). I tested this on a few clients: same problem. It make x2go almost unusable. Anyone a hint what to test and where to look for this weird issue? R. -- richard lucassen http://contact.xaq.nl/

2 16

One application (Digikam) fails, apparently randomly
by Chris Green 02 Apr '21

02 Apr '21

Well I'm very confused now, I thought I could see a pattern but I can't. I'll report what I have discovered so far though. I'm running x2gclient 4.1.2.2 (as installed from the Ubuntu repositories) on my xubuntu 20.10 laptop. I'm running the server on my xubuntu 20.10 desktop machine, again just as installed from the Ubuntu repositories:- x2goserver: 4.1.0.3 x2goserver-common: 4.1.0.3 x2goserver-extensions: 4.1.0.3 x2goserver-fmbindings: 4.1.0.3 x2goserver-printing: 4.1.0.3 x2goserver-x2goagent: 3.5.99.24 x2goserver-xsession: 4.1.0.3 I have been trying a mix of three types of session, as follows (with results):- 1 - A small Python GUI program as a 'Single Application', this always runs without any problem at all, it just works every time. 2 - An XFCE session, this works every time and doesn't cause any major issues but it does occasionally pop-up windows in the server session as follows:- A window saying "Authentication is required to create a colour profile" and I have to enter my sudo user password. After the above pop-up I sometimes get a second one saying "Authentication is required to operate a colour managed device" The above two pop-ups only appear occasionally, usually the XFCE session just starts up and runs normally. Once I've entered my sudo password in response the session runs OK. 3 - A Digikam session as a 'Single Application', this does work sometimes but more often it appears to start OK, then xfwm4 on the *client* crashes and the Digikam session disappears even though it is still running on the desktop machine. I can't see any consistent reason for when it does work or when it doesn't work. Digikam is running from a big Appimage. Running digikam in an XFCE session running in x2go works perfectly, or at least I've not managed to crash it ever. It's only when run as a 'Single Application' that it fails. I guess I can just run Digikam in an XFCE session but I'd like to be able to just run Digikam. It's frustrating that it sometimes works but I can't see what is needed for it to work. As I said elsewhere I've run memtest on the desktop machine for two whole passes and it showed no errors. I'm happy to add debug flags to either end to see if it's possible to diagnose this. -- Chris Green

2 2

Cant start X.Org Server
by Martti Pitkanen 01 Apr '21

01 Apr '21

Hi, I experimented different settings in my Win X2Go -client, after which I started getting "x2client Cant start X.Org Server. Please check your installation." Afre that X2Go closes. I uninstalled it and removed all references to x2go by using regedit. Any idea what else I can do? Thanks, Martti Pitkanen

2 1

session.log file fills disk
by David Schumm 28 Jan '21

28 Jan '21

We are seeing this on multiple machines where the session.log file is massive. I've seen them as large as 82gb. When you attempt to open it it says it's a binary file Server is Centos 7 running x2go server 4.1.0.3-9 == This e-mail may contain SEAKR Engineering (SEAKR) Confidential and Proprietary Information. If this message is not intended for you, you are strictly prohibited from using this message, its contents or attachments in any way. If you have received this message in error, please delete the message from your mailbox. This e-mail may contain export-controlled material and should be handled accordingly.

4 3

Client x2go Android ?
by cloud38＠free.fr 21 Jan '21

21 Jan '21

Hello, Is there an x2go Android client for a connection from my smartphone ? Thank you for your help !

4 3

Shared folder fails silently on client side?
by James Bowery 20 Jan '21

20 Jan '21

For some reason the automounted shared folder is no longer being shared. Moreover, manually mounting doesn't work either. Yet there are no error messages in the X2Go CLient status window (Session ID:... Server:... Username:... Display:... Creation time (is blank?) and Status running). I'm not exactly sure where to look on the Ubuntu server for diagnostics, but it seems the client side should not be so silent under both automount and manual mount.

2 7

Single Application session fails
by Chris Green 18 Jan '21

18 Jan '21

I am running x2goclient on my laptop and the x2go server is on my dekstop, both systems are running xubuntu 20.10. Running an xfce session works perfectly but running a single application session doesn't. It appears to work until the application pops up momentarily and then disappears. The application *is* still running but is not displayed. The end of the session.log shows:- Info: keyboard blocking directory created: '/home/chris/.x2go/C-chris-50-1610816188_stRdigikam_> Info: Keycode conversion is off Session: Session started at 'Sat Jan 16 16:56:30 2021'. nxagentImportProperty: WARNING! Failed to convert remote window [79978240] importing property [> WARNING: Invalid window in ClientMessage xclient.window [0x7a6]. WARNING: Invalid window in ClientMessage xclient.window [0x7a6]. WARNING: Invalid window in ClientMessage xclient.window [0x7a6]. WARNING: Invalid window in ClientMessage xclient.window [0x7a6]. WARNING: Invalid window in ClientMessage xclient.window [0x7a6]. WARNING: Invalid window in ClientMessage xclient.window [0x4a00072]. WARNING: Invalid window in ClientMessage xclient.window [0x4a00072]. WARNING: Invalid window in ClientMessage xclient.window [0x4a0007b]. WARNING: Invalid window in ClientMessage xclient.window [0x4a0007b]. WARNING: Invalid window in ClientMessage xclient.window [0x4a00082]. WARNING: Invalid window in ClientMessage xclient.window [0x4a00082]. Does this indicate what the problem might be? -- Chris Green

2 7

pyhoca-cli seems very broken on xubuntu 20.10
by Chris Green 18 Jan '21

18 Jan '21

Having fixed the missing python3-invoke module pyhoca-cli now crashes in all sorts of other ways on my xubuntu 20.10 system. These sessions run fine when called from x2goclient, I just want to script them in order to run a couple of things before the x2go session. This is calling an xfce session, i.e. a full desktop:- chris$ pyhoca-cli esprimo Traceback (most recent call last): File "/usr/bin/pyhoca-cli", line 439, in <module> parser, args = parseargs() File "/usr/bin/pyhoca-cli", line 397, in parseargs ssh_host = ssh_config.lookup(a.server) File "/usr/lib/python3/dist-packages/paramiko/config.py", line 223, in lookup options = self._lookup(hostname=hostname) File "/usr/lib/python3/dist-packages/paramiko/config.py", line 250, in _lookup or self._does_match( File "/usr/lib/python3/dist-packages/paramiko/config.py", line 389, in _does_match passed = invoke.run(exec_cmd, hide="stdout", warn=True).ok File "/usr/lib/python3/dist-packages/invoke/__init__.py", line 48, in run return Context().run(command, **kwargs) File "/usr/lib/python3/dist-packages/invoke/context.py", line 94, in run return self._run(runner, command, **kwargs) File "/usr/lib/python3/dist-packages/invoke/context.py", line 101, in _run return runner.run(command, **kwargs) File "/usr/lib/python3/dist-packages/invoke/runners.py", line 363, in run return self._run_body(command, **kwargs) File "/usr/lib/python3/dist-packages/invoke/runners.py", line 411, in _run_body self.start(command, self.opts["shell"], self.env) File "/usr/lib/python3/dist-packages/invoke/runners.py", line 1271, in start self.process = Popen( File "/usr/lib/python3.8/subprocess.py", line 854, in __init__ self._execute_child(args, executable, preexec_fn, close_fds, File "/usr/lib/python3.8/subprocess.py", line 1637, in _execute_child self.pid = _posixsubprocess.fork_exec( AttributeError: 'NoneType' object has no attribute 'fork_exec' This is runnning a single application:- chris$ pyhoca-cli Digikam pyhoca-cli[19161] NOTICE: preparing requested X2Go session pyhoca-cli[19161] (PyHocaCLI) NOTICE: preparing requested X2Go session pyhoca-cli[19161] (x2gosessregistry-pylib) NOTICE: registering X2Go session Pyhoca-Client_Session... pyhoca-cli[19161] (x2goclient-pylib) NOTICE: initializing X2Go session... pyhoca-cli[19161] (x2gocontrolsession-pylib) NOTICE: connecting to [Digikam]:22 Traceback (most recent call last): File "/usr/bin/pyhoca-cli", line 454, in <module> thisPyHocaCLI.authenticate() File "/usr/lib/python3/dist-packages/pyhoca/cli/frontend.py", line 532, in authenticate self._X2GoClient__connect_session(self.x2go_session_hash, username=_username, password=password, passphrase=passphrase, force_password_auth=force_password_auth) File "/usr/lib/python3/dist-packages/x2go/client.py", line 1392, in connect_session _success = self.session_registry(session_uuid).connect(username=username, File "/usr/lib/python3/dist-packages/x2go/session.py", line 1387, in connect self.connected = self.control_session.connect(self.server, File "/usr/lib/python3/dist-packages/x2go/backends/control/plain.py", line 1031, in connect paramiko.SSHClient.connect(self, _hostname, port=port, username=username, pkey=None, password=passphrase, File "/usr/lib/python3/dist-packages/paramiko/client.py", line 340, in connect to_try = list(self._families_and_addresses(hostname, port)) File "/usr/lib/python3/dist-packages/paramiko/client.py", line 203, in _families_and_addresses addrinfos = socket.getaddrinfo( File "/usr/lib/python3/dist-packages/gevent/_socketcommon.py", line 212, in getaddrinfo addrlist = get_hub().resolver.getaddrinfo(host, port, family, type, proto, flags) File "/usr/lib/python3/dist-packages/gevent/resolver/thread.py", line 65, in getaddrinfo return self.pool.apply(_socket.getaddrinfo, args, kwargs) File "/usr/lib/python3/dist-packages/gevent/pool.py", line 159, in apply return self.spawn(func, *args, **kwds).get() File "src/gevent/event.py", line 268, in gevent._event.AsyncResult.get File "src/gevent/event.py", line 296, in gevent._event.AsyncResult.get File "src/gevent/event.py", line 286, in gevent._event.AsyncResult.get File "src/gevent/event.py", line 266, in gevent._event.AsyncResult._raise_exception File "src/gevent/event.py", line 211, in gevent._event.AsyncResult.exc_info.__get__ File "/usr/lib/python3/dist-packages/gevent/_tblib.py", line 371, in g return f(a) File "/usr/lib/python3/dist-packages/gevent/_tblib.py", line 432, in load_traceback return loads(s) File "/usr/lib/python3/dist-packages/gevent/_tblib.py", line 337, in unpickle_traceback return ret.as_traceback() File "/usr/lib/python3/dist-packages/gevent/_tblib.py", line 202, in as_traceback code = CodeType( TypeError: an integer is required (got type bytes) -- Chris Green

2 2

x2go session crashes xfwm4
by Chris Green 18 Jan '21

18 Jan '21

I've recently upgraded my system to xubuntu 20.10 and x2go sessions now crash the xfwm4 window manager. After restarting xfwm4 from a terminal window I see the following crash report when I run another x2go session:- xfwm4:15183): Gdk-ERROR **: 11:27:33.867: The program 'xfwm4' received an X Window System error. This probably reflects a bug in the program. The error was 'XSyncBadAlarm'. (Details: serial 213260 error_code 135 request_code 134 (SYNC) minor_code 11) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the GDK_SYNCHRONIZE environment variable to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) Trace/breakpoint trap (core dumped) Is this a bug in xfwm4 or in x2go? -- Chris Green

2 2

Missing dependency for pyhoca-cli
by Chris Green 18 Jan '21

18 Jan '21

I just installed (using synaptic, i.e. apt) pyhoca-cli on my xubuntu 20.10 system and it dies with a ModuleNotFoundError :- chris$ pyhoca-cli esprimo Traceback (most recent call last): File "/usr/bin/pyhoca-cli", line 439, in <module> parser, args = parseargs() File "/usr/bin/pyhoca-cli", line 397, in parseargs ssh_host = ssh_config.lookup(a.server) File "/usr/lib/python3/dist-packages/paramiko/config.py", line 223, in lookup options = self._lookup(hostname=hostname) File "/usr/lib/python3/dist-packages/paramiko/config.py", line 250, in _lookup or self._does_match( File "/usr/lib/python3/dist-packages/paramiko/config.py", line 387, in _does_match raise invoke_import_error File "/usr/lib/python3/dist-packages/paramiko/config.py", line 36, in <module> import invoke ModuleNotFoundError: No module named 'invoke' Easily fixed by installing python3-invoke but presumably there's a missing dependency. However see my other report - pyhoca-cli seems very broken on xubuntu 20.10. -- Chris Green

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x2go-user January 2021