vnc .. black vnc client screen

Bruce Douglas bedouglas@earthlink.net
Sat Jan 4 19:01:01 2003


jack...

thanks for your help... the following are the steps i took (prior to seeing
your response).

for server:
1) loaded redhat 8.0 linux onto a clean box
2) copied latest version of VNC server from realvnc site (rpm for redhat
7.3)
	(didn't know how to build the tar version, but this shouldn't be an issue)
3) modified xstartup file for gnome
4) rebooted linux box
5) logged in and started vncserver (vncserver:1, vncserver:2)

i'm not going through any firewalls.. the client box is a windows 2000 box.
the server is
a linux redhat 8.0 box.

for client:
1) verified via the java browser... http://foo.com:5801 (works)
2) used the vncviewer client xxx.yyy:1 (:2,:3)
	(if i didn't have the ip address/password correct, an error would display)
	the client starts a window. the window is blank/black. gnome does not seem
to start

	the log file results are:

=======================================================================
[root@lserver1 root]# more .vnc/lserver1:2.log
04/01/03 06:45:01 Xvnc version 3.3.6 - built Dec  2 2002 10:54:00
04/01/03 06:45:01 Copyright (C) 2002 RealVNC Ltd.
04/01/03 06:45:01 Copyright (C) 1994-2000 AT&T Laboratories Cambridge.
04/01/03 06:45:01 All Rights Reserved.
04/01/03 06:45:01 See http://www.realvnc.com for information on VNC
04/01/03 06:45:01 Desktop name 'X' (lserver1:2)
04/01/03 06:45:01 Protocol version supported 3.3
04/01/03 06:45:01 Listening for VNC connections on TCP port 5902
04/01/03 06:45:01 Listening for HTTP connections on TCP port 5802
04/01/03 06:45:01   URL http://lserver1:5802
SESSION_MANAGER=local/lserver1:/tmp/.ICE-unix/1028
Loaded background '0x8095970
Xlib:  extension "RENDER" missing on display ":2.0".
Xlib:  extension "RENDER" missing on display ":2.0".
Xlib:  extension "RENDER" missing on display ":2.0".
Unable to open desktop file applications:///Internet/redhat-email.desktop
for pa
nel launcher: Error reading file
'applications:///Internet/redhat-email.desktop'
: File not found
Unable to open desktop file
applications:///Office/redhat-word-processor.desktop
 for panel launcher: Error reading file
'applications:///Office/redhat-word-proc
essor.desktop': File not found
Unable to open desktop file
applications:///Office/redhat-presentations.desktop
for panel launcher: Error reading file
'applications:///Office/redhat-presentati
ons.desktop': File not found
Unable to open desktop file
applications:///Office/redhat-spreadsheet.desktop fo
r panel launcher: Error reading file
'applications:///Office/redhat-spreadsheet.
desktop': File not found
Xlib:  extension "RENDER" missing on display ":2.0".

04/01/03 06:45:38 Got connection from client 192.168.1.3
04/01/03 06:45:38 Protocol version 3.3
04/01/03 06:46:01 Client 192.168.1.3 gone
04/01/03 06:46:01 Statistics:
04/01/03 06:46:01   key events received 0, pointer events 4
04/01/03 06:46:01   framebuffer updates 0, rectangles 0, bytes 0

============================================================================
======

the xstartup file is:

-----------------------------------------------
#!/bin/sh
#unset SESSION MANAGER

[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &

unset SESSION MANAGER

gnome-session &
#bed twm &
-----------------------------------------------

the bottom line.. i'm still having the same issues that i've been dealing
with
for the past couple of days... the weird thing is that this was initially
working,
or at least i thought it was...

regards...

-bruce

-----Original Message-----
From: jack@dblawoffice.com [mailto:jack@dblawoffice.com]
Sent: Saturday, January 04, 2003 8:09 AM
To: Bruce Douglas
Subject: RE: vnc .. black vnc client screen


You need to read the linux RPM documentation. Try entering the command man
RPM in a terminal window. Basically the RPM command to remove a package is
rpm -e  packagename.

Basically you need to set up an a display on your linux machine so the
viewer can connect. If you accept the vnc default  the manager will be
something other than KDE. Just envision that you are connecting to a
different console on your linux machine and you must set it up with a
window manager and then an x display.

You control which console you connect to with the :1, :2, etc after the ip
address entry in the viewer.

If your are going from windows to windows or from linux to windows you are
stuck with display :0 so you and the local user see the same thing.

cheers....

 ps: I am not at work but I am using VNC from my SuSE 8.1  linux machine
at home to talk to my Win2KK machine at work running Domino/Lotus R6 to
send this

.....jack bunce
     Dorsey & Balaban LLP
     voice (860)346-5244
         fax (860)347-9706
     jack@dblawoffice.com



"Bruce Douglas" <bedouglas@earthlink.net>
Sent by: vnc-list-admin@realvnc.com
01/04/2003 06:38 AM

To
<vnc-list@realvnc.com>
cc

Subject
RE: vnc .. black vnc client screen






-----Original Message-----
From: Bruce Douglas [mailto:bedouglas@earthlink.net]
Sent: Saturday, January 04, 2003 3:33 AM
To: 'Bruce Douglas'
Subject: RE: vnc .. black vnc client screen


hi...

ok.. now this is simply getting more confusing!!!!

i've decided to go back and start fom the beginning...

how does one completely remove/uninstall the vnc package. (is there an
uninstall rpm function within linux??)

what are the correct steps for building/installing a vnc server for a
redhat
(8.0) linux platform???

i've seen plenty of msgs that point to a "/etc/sysconfig/vncservers" file.
I
don't have this file on any of the boxes where i've selected vnc from the
linux/redhat distro when i was installing linux. in fact, i can't seem to
find vnc on any of the boxes where i've tried to install vnc as part of
the
linux install process. (i've only had it initially work when i did the vnc
install by hand...)

so, in essence, i'm trying to find some form of docs/pointers to a
sequence
of steps for installing the VNC server on a linux box in a repeatable
fashion....

the docs that i found on the realvnc site weren't that helpful.

by the way, where does the vncservers file come from, and what should be
in
it. is there any doc/set of docs that describes the various setup files
required and what they should include.

Thanks

Bruce


-----Original Message-----
From: vnc-list-admin@realvnc.com [mailto:vnc-list-admin@realvnc.com]On
Behalf Of Bruce Douglas
Sent: Friday, January 03, 2003 10:11 PM
To: vnc-list@realvnc.com
Subject: RE: vnc .. black vnc client screen


hi...

my lserver2:2.log file follows:....

03/01/03 08:57:12 Xvnc version 3.3.6 - built Dec  2 2002 10:54:00
03/01/03 08:57:12 Copyright (C) 2002 RealVNC Ltd.
03/01/03 08:57:12 Copyright (C) 1994-2000 AT&T Laboratories Cambridge.
03/01/03 08:57:12 All Rights Reserved.
03/01/03 08:57:12 See http://www.realvnc.com for information on VNC
03/01/03 08:57:12 Desktop name 'X' (lserver2:1)
03/01/03 08:57:12 Protocol version supported 3.3
03/01/03 08:57:12 Listening for VNC connections on TCP port 5901
03/01/03 08:57:12 Listening for HTTP connections on TCP port 5801
03/01/03 08:57:12   URL http://lserver2:5801
SESSION_MANAGER=local/lserver2:/tmp/.ICE-unix/904
Loaded background '0x8097490
AUDIT: Fri Jan  3 08:57:19 2003: 896 Xvnc: client 4 rejected from local
host
Xlib:  extension "RENDER" missing on display ":1.0".
Xlib:  extension "RENDER" missing on display ":1.0".
Xlib:  extension "RENDER" missing on display ":1.0".
Unable to open desktop file
applications:///Office/redhat-word-processor.desktop
 for panel launcher: Error reading file
'applications:///Office/redhat-word-proc
essor.desktop': File not found
Unable to open desktop file
applications:///Office/redhat-presentations.desktop
for panel launcher: Error reading file
'applications:///Office/redhat-presentati
ons.desktop': File not found
--More--(84%)


my xstartup is below...

[root@lserver2 root]# more .vnc/xstartup
#!/bin/sh

unset SESSION MANAGER

[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &

#bed twm &
gnome-session &


I still cnnot figure out why i'm getting a blck screen when i try to
connect
via a Windows vncviewer. I believe whatever I'm experiencing is also
causing
my Windows box to consume all CPU cycles. As I stated earlier... the http
java client performs as I expect.

thanks....

bruce
bedouglas@earthlink.net


-----Original Message-----
From: vnc-list-admin@realvnc.com [mailto:vnc-list-admin@realvnc.com]On
Behalf Of Bruce Douglas
Sent: Friday, January 03, 2003 2:47 PM
To: vnc-list@realvnc.com
Subject: RE: vnc .. black vnc client screen


ps...

my xstartup file (.vnc/xstartup) is....

/////////////////////////////////////////////////////////////////
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &

#bed twm &

gnome-session &
/////////////////////////////////////////////////////////////////

-bruce


-----Original Message-----
From: vnc-list-admin@realvnc.com [mailto:vnc-list-admin@realvnc.com]On
Behalf Of Bruce Douglas
Sent: Friday, January 03, 2003 2:11 PM
To: vnc-list@realvnc.com
Subject: vnc .. black vnc client screen


Hi...

A simple question (I hope!!). I can run the vnc browser (java) and I see
the
unix box (GNOME) as I should)....

In keeping everything simple, I'm trying to fire up a Windows VNC Client
to
talk to a Linux VNC Server.

However, When I run the VNC Client (Windows) a black window is displayed.
This used to work before (I think)!!! I've done a lot of rewiring/etc.. I
can't really say that everything has actually worked on this box!!

I run vncserver on the unix box. It appears that I have multiple VNC
displays running. I'm new to unix, so I don't know how to go about
actually
checking to see which displays are actually running.

Any help/assistance would be greatly appreciated. Or any pointers to
online
docs/etc....

Thanks

Bruce Douglas
bedouglas@earthlink.net

PS. As I stated, I could have sworn that I had everything working at one
time!!!
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