[FreeNX-kNX] black screen after authentication

[Michael Oevermann]

Fabian Franz wrote:
>>> And what happens if you do a:
>>>
>>> $ su - user
>>> $ DISPLAY=:1000 xterm
>>>
>>> Do you get an error? Is the window still black?
>>>       
>> That works! I get a xterm on the client machine.
>>     
>
> Can you as well do as root a:
>
> $ mkdir -m1755 /tmp/.X11-unix/ and try again first?
>
>   
That directory existed already


> It that does not help, then you should check your nxnode for occurences of unix: and replace DISPLAY="unix:$display" through DISPLAY=":$display".
>
>   

No need, I found only  DISPLAY=":$display" in nxnode.

However, now the DISPLAY=:1000 xterm doesn't work anymore. I have no 
clue why. Anyway, I did a reboot
on the server and tried to connect again. Everything as before, however, 
the session file now looks like

NXPROXY - Version 3.0.0

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

Info: Proxy running in client mode with pid '4967'.
Session: Starting session at 'Fri Nov 16 16:18:02 2007'.
Info: Connection with remote proxy completed.
Warning: Unrecognized session type 'unix-desktop'. Assuming agent session.
Info: Using ISDN link parameters 384/24/1/0.
Info: Using cache parameters 4/4096KB/16384KB/16384KB.
Info: Using pack method 'adaptive-5' with session 'unix-desktop'.
Info: Using ZLIB data compression 1/1/32.
Info: Using ZLIB stream compression 6/6.
Info: No suitable cache file found.
Info: Forwarding X11 connections to display ':0.0'.
Info: Listening to font server connections on port '11002'.
Session: Session started at 'Fri Nov 16 16:18:02 2007'.
Info: Established X server connection.
Info: Using shared memory parameters 1/4096K.

Seems OK, however, the X11 forwarding was different before (:12:0, which 
is also the display when
I connect with ssh, i.e. localhost:12:0). (when I connect
to a different nxserver I get the :0.0 as well for a working connection 
in the sessions file)

When I do now a

$ su - user
$ DISPLAY=:1000 xterm

I get the error

xterm Xt error: Can't open display: :1000

I have no idea why it worked before. I didn't change any configuration 
files.

Michael




> cu
>
> Fabian
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>   


-- 
==========================================
Dr. Michael Oevermann
TU Berlin, Fak. III, Prozesswissenschaften
Institut für Energietechnik
Fasanenstr. 89, 10623 Berlin
Tel.: ++49 (0) 30 3142 2452
Fax : ++49 (0) 30 3142 2157
mailto: michael.oevermann at tu-berlin.de
==========================================