[FreeNX-kNX] Blank Screen Failure - X & K Running Fine

[Info at quantum-sci.net]

On Wednesday 25 March 2009 15:45:35 Terje Andersen wrote:
> Latest self-compiled?

Actually I've resorted to the latest NX binary deb package from Nomachine.  Still a blank client screen.


> > > There is no documentation on how freenx decides where a display should go, although in 2007 there was this problem which was fixed by changing an entry in nxnode from unix: to localhost: .  No one specified which nxnode file...  and that problem hasn't been reported since.  I tried the --display localhost:0.0 with the client, but it says " cannot connect to X server localhost:0.0".  Why, I'm connecting as the current user...
> 
> nxnode on the server, I think.

Ya, there are several files named this.  Dumbly they always say the filename, but not which one to edit.


> These links might help you understand the concepts, they are mostly similar in FreeNX:
> 
> http://www.nomachine.com/documentation/intr-technology.php
> http://www.nomachine.com/documentation/intr-components.php
> http://www.nomachine.com/documentation/admin-guide.php

Thanks, I'll study them.  Seems like you always have to learn -everything- about -everything- before you can do -anything-.


> Could you please enable log level 5 &  no session cleaning in the node.conf, then please provide logs from both the ~/.nx/<session-id>/(session and errors files) both on the server and client, and lastly the /var/log/nxserver.log files? This might help someone to help you :)

I edited /usr/NX/etc/node.cfg and set:
SessionLogLevel = "5"
SessionLogClean = "0"
... and restarted the NX server.  Tried to open a session again and the same thing of course.

I guess the directory you're referring to is:
C-localhost-1011-5AE45DF3184EC921C0F9FB9FB38E290B/

In that is clients, which might be a logfile:
_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/cygnus:1011
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6
error opening security policy file /usr/X11R6/lib/X11/xserver/SecurityPolicy
Running /etc/profile
Running ~/.profile
Running ~/.bashrc
Running /etc/profile
non-network local connections being added to access control list
KDE seems to be already running on this display.

... errors is empty, options seems irrelevant, and session has this:
NXAGENT - Version 3.3.0

Copyright (C) 2001, 2007 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Agent running with pid '5030'.
Session: Starting session at 'Thu Mar 26 07:35:33 2009'.
Info: Proxy running in server mode with pid '5030'.
Info: Waiting for connection from '127.0.0.1' on port '5011'.
Info: Accepted connection from '127.0.0.1'.
Info: Connection with remote proxy completed.
Info: Using WAN link parameters 768/24/1/0.
Info: Using agent parameters 5000/5/50/0/0.
Info: Using cache parameters 4/4096KB/16384KB/16384KB.
Info: Using pack method 'adaptive-9' with session 'kde'.
Info: Using product 'LFE/None/LFEN/None'.
Info: Using ZLIB data compression 1/1/32.
Info: Using ZLIB stream compression 1/1.
Info: Using cache file '/home/carl/.nx/cache-kde/C-9253B8F460FD8177F0FD0C98E258$
Info: Listening to X11 connections on display ':1011'.
Info: Established X client connection.
Info: Using shared memory parameters 1/1/1/4096K.
Info: Using alpha channel in render extension.
Info: Not using local device configuration changes.
Session: Session started at 'Thu Mar 26 07:35:34 2009'.
Info: Screen [0] resized to geometry [1672x964].
Running /etc/profile
Running ~/.profile
Running ~/.bashrc
Running /etc/profile
non-network local connections being added to access control list

... I just get a blank screen on the client and on the server the popup saying KDE is already started on this display.