VNC 3.3 / Solaris 8 / Sun Rays

Martin de Koning m1d2k3 "at"
Sun, 03 Mar 2002 11:21:04 +0000

Hi all, this is my first post to the list so please be kind. :)

I've just got a new job and I have been asked to investigate using VNC
to push a non-interactive session to multiple machines in order to
negate the need of class room projectors (I work for a educational

This works great for 30 Sun Blade 100s running Solaris 8.

However we also have two labs of Sun Rays running off a couple of
Solaris 8 based servers. This is where things get interesting, I
compiled VNC from latest sources available from the Website on one of
the Sun Ray servers using the GNU C compiler. The resulting binaries
work seamesly on the Sun Blade 100 machines but not on a Sun Ray
terminal connected to the Sun Ray server where they were created.

Sun Rays connect to a X display, so when I run a VNC client session is
connects to the localhost. I can get Xvnc to listen on a specified port
and use a free X display, e.g:

martindk:[yi]:/export/home/martindk/.vnc >  vncserver -httpport 32100
-rfbport 32000
	<-- Output removed -->

New 'X' desktop is yi:164

Starting applications specified in /export/home/martindk/.vnc/xstartup
Log file is /export/home/martindk/.vnc/yi:164.log

martindk:[yi]:/export/home/martindk/.vnc > telnet 32000
Connected to
Escape character is '^]'.
RFB 003.003 
^CConnection closed by foreign host.


When connecting with the client, normal authentication occurs:

martindk:[yi]:/export/home/martindk/.vnc > vncviewer :32000
VNC server supports protocol version 3.3 (viewer 3.3)
Password: ########
VNC authentication succeeded
Desktop name "martindk's X desktop (yi:164)"
Connected to VNC server, using protocol version 3.3
VNC server default format:
  8 bits per pixel.
  True colour: max red 7 green 7 blue 3, shift red 0 green 3 blue 6
Using default colormap which is TrueColor.  Pixel format:
  32 bits per pixel.
  Most significant byte first in each pixel.
  True colour: max red 255 green 255 blue 255, shift red 0 green 8 blue
Same machine: preferring raw encoding
vncviewer: VNC server closed connection

The client session runs, opens a window, displays a grey screen then

The server logs for the connection show this:

01/03/02 14:50:09 Xvnc version 3.3.3r2+tight1.2.2
01/03/02 14:50:09 Copyright (C) AT&T Laboratories Cambridge.
01/03/02 14:50:09 All Rights Reserved.
01/03/02 14:50:09 See for information
on VNC
01/03/02 14:50:09 Desktop name 'X' (yi:164)
01/03/02 14:50:09 Protocol version supported 3.3
01/03/02 14:50:09 Listening for VNC connections on TCP port 32000
01/03/02 14:50:09 Listening for HTTP connections on TCP port 32100
01/03/02 14:50:09   URL http://yi:32100

01/03/02 14:50:18 Got connection from client
01/03/02 14:50:18 Protocol versionX connection to unix:158.0 broken
(explicit kill or server shutdown).
xterm:  fatal IO error 32 (Broken pipe) or KillClient on X server
 255 b 255, shift r 0 g 8 b 16
01/03/02 14:50:21 Using raw encoding for client
01/03/02 14:50:21 Using compression level 1 for client
01/03/02 14:50:21 Enabling X-style cursor updates for client
01/03/02 14:50:21 Enabling LastRect protocol extension for client


Any1 have any ideas? I'm new to both VNC and to the Sun Ray system
architecture so if I have missed anything obvious I'd love to know.

Btw I did edit the `vncserver` script to increase the range used to find
available X displays.

Martin de Koning
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