Re: VNC viewer is connected but blank screen

On Fri, 28 Mar 2008 16:25:41 -0700, Salih wrote:

On Mar 28, 4:27 am, Jack Snodgrass <jacks_temp_id_bf2...@xxxxxxxxxxx>
wrote:
On Thu, 27 Mar 2008 18:19:04 -0700, Salih wrote:
On Mar 24, 4:32 pm, Jack Snodgrass <jacks_temp_id_bf2...@xxxxxxxxxxx>
wrote:
On Mon, 24 Mar 2008 13:35:46 -0700, Salih wrote:
I was able to run a vncserver and connect to it without a problem.
After switching to xfce from kde, viewer connects but all I get is
a blank screen with mouse working.

I am running the server on a Kubuntu machine. I tried connecting
to it via TightVNC from a Windows machine as well as via vncviewer
to localhost from the Linux server itself.

When I run the server I get the following log:

4/03/08 13:32:12 Xvnc version 3.3.7 - built May 24 2007 12:47:11
24/03/08 13:32:12 Copyright (C) 2002-2003 RealVNC Ltd. 24/03/08
13:32:12 Copyright (C) 1994-2000 AT&T Laboratories Cambridge.
24/03/08 13:32:12 All Rights Reserved. 24/03/08 13:32:12
Seehttp://www.realvnc.comfor information on VNC 24/03/08 13:32:12
Desktop name 'X' (cellular:1) 24/03/08 13:32:12 Protocol version
supported 3.3 24/03/08 13:32:12 Listening for VNC connections on
TCP port 5901

When I connect from the client using vncviewer, this additional
message is received:

24/03/08 13:32:53 Got connection from client 0.0.0.0 24/03/08
13:32:53 Protocol version 3.3 24/03/08 13:32:55 Pixel format for
client 0.0.0.0: 24/03/08 13:32:55 8 bpp, depth 6
24/03/08 13:32:55 true colour: max r 3 g 3 b 3, shift r 4 g 2 b
0 24/03/08 13:32:55 rfbProcessClientNormalMessage: ignoring
unknown encoding type -239
24/03/08 13:32:55 rfbProcessClientNormalMessage: ignoring unknown
encoding type -223
24/03/08 13:32:55 Using ZRLE encoding for client 0.0.0.0

I don't know how to debug it and logs do not tell much. Does
anybody have any idea what would be the cause?

Thanks...

sounds like your not starting a xfce session manager if you want to
run xfce. Do you have:

/usr/bin/xfce4-session
in your xstartup and does
ps -aef | grep xfce
show some xfce processes running after you start your vncserver?

jack

Thank you Jack. Where is the "xstartup" file located? Do I need to
manually edit it to run the x-session?

On my Fedora install, when you start vncserver for the first time, it
creates a ~/.vnc directory with a xstartup script in it. I changed my
xstartup scrript to do:

#!/bin/sh

# Uncomment the following two lines for normal desktop: # unset
SESSION_MANAGER
# exec /etc/X11/xinit/xinitrc

/usr/bin/xfce4-session &
wait

so when vncserver starts, it starts an X session and the xstartup
script starts my xfce4-session manager.

--
D.A.M. - Mothers Against Dyslexia

seehttp://www.jacksnodgrass.comfor my contact info.

jack - Grapevine/Richardson

Thank you for the detailed explanation. I actually uninstalled Xubuntu
using the directions at http://www.psychocats.net/ubuntu/purekde and
re-installed the KDE desktop. Everything works now. Note that running
simply "sudo apt-get remove xubuntu-desktop" does not work. I will
follow your directions if I decide to switch to xfce.

xfce is just supposed to be a trimmed down x-windows desktop. I use
it for all my remote, vnc sessions. it's fairly responsive and functional
over the slower links.

jack

--
.

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