[FreeNX-kNX] Problem Resuming Session

[Terje Andersen]

This is an earlier reported bug on this list - search for for "wallpaper" I think... The problem is that when resuming, the client (or clients xserver) creates two x11 windows; one is a "snapshot" of the session and fills the desktop as a"wallpaper" (at least on winxp) and is static. The second window is the active resumed session, and is actually working, but sometimes doesn't get focus/gets ontop. If you switch back and forth between them you will eventually get to the working window.

With some KDE themes, e.g. Plastic, the window colors is incorrectly restored. This can be fixed by creating a short shell script on your desktop for instance, containing the following code: "dcop kwin KWinInterface reconfigure" which when started after resuming will set the colors for existing windows correctly.

when you say you get a second session after killing the nxclient, it's because freenx nxserver doesn't catch that the session is disconnected and doesn't change the state to suspended. This means that it creates a new session for you, as it thinks the other session is active/running. to fix this, connect with ssh to the server and run (as root): "nxserver --suspend <username>" (try --help for more info on this), and then resume the session. 

Hope this helps, and explains the situation.

;-)Terje

______________ Opprinnelig melding _______________
Emne:	[FreeNX-kNX] Problem Resuming Session
Avsender:	"Nick" <lists at mogmail.net>
Dato:		29. januar 2006 14:10:34

Hey All,

I am having trouble with FreeNX, I've installed as per:

https://wiki.ubuntu.com/FreeNX

Using default NX keys and package from "deb
http://seveas.ubuntulinux.nl/ breezy-seveas freenx" repository. I am
running Breazy:

# uname -a
Linux nibiru 2.6.12-10-386 #1 Thu Dec 22 11:37:10 UTC 2005 i686 GNU/Linux

root at nibiru:/etc/nxserver# nxserver --version
NXSERVER - Version 1.4.0-45-SVN OS (GPL)


Now the install goes fine:

root at nibiru:~# dpkg -l | grep nx
ii freenx 0.4.4+0.4.5-3ubuntu0 The FreeNX application/thin-client server ba
ii nxagent 1.4.92+1.5.0-4ubuntu0 NoMachine NX - nesting X server with
roundtr
ii nxlibs 1.4.92+1.5.0-4ubuntu0 NoMachine NX - common agent libraries

And I can connect to the box just fine. The problem occurs when I exit a
session and click "suspend". When I resume the session (From official
Windows NoMachine client) the NX window takes up the entire screen (With
a big black border around it),I can't click anything and I have to kill
the process through taskmanager. If I then try to reconnect, it starts a
fresh session and all is OK untill I try to resume again.

I've also noticed, that window that is "shrunk" in the top left corner
is actually a NoMachine client and if I expand it I can get at my
desktop OK. So it seems the great big one that takes up all my screen is
just a static image of the desktop...

It's a bit hard to explain the problem so I've uploaded an screenshot
showing what I mean:

www.tim.nildram.co.uk/freeNX-resume.jpg

I've tried the same setup but using the official NO Machine server and
suspend/resume works fine so I guess it has to be specific to freenx server.

I have looked througha few times but no answer:

http://mail.kde.org/pipermail/freenx-knx/2005-December/002657.html

http://mail.kde.org/pipermail/freenx-knx/2005-December/002638.html

Any help would be much appreciated.


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