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    |   xen-users
Re: [Xen-users] Cannot connect to VNC 
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Morten Christensen wrote:
 I try to install Windows XP on an AM2-box with Debian unstable and Xen 
3.0.3.
I can get the XP-install to start but cannot find any way  to see the 
domU-display with vnc. 
If I have a domU.cfg of:
sdl = 1
vnc = 0
vncviewer = 0
stdvga = 1
then I get a sdl-window on the dom0-window.
If I have a domU.cfg of:
sdl = 0
vnc = 1
vncviewer = 0
stdvga = 1
nothing happens when I try to connect with a vncviewer. I have tried all 
combinations I can image, mostly "ip.of.my.dom0:domU_id" . From dom0, 
nothing happens. From a windows-box I an told, that vnc cannot connect 
io server. 
From the windows-box I can vnc to dom0 with "ip.of.my.dom0" , and from 
dom0 I can vnc to the windows-box. 
I have googled without luck. Where can I find some background-material 
or FAQ about Xen and VNC ? 
Hi,
maybe missing "vncviewer = 1"?
Maybe it is a help for you to see a working config from my domU on 
Debian/unstable: 
...
device_model = '/usr/lib/xen-3.0.3-1/bin/qemu-dm'
sdl=0
# enable VNC library for graphics, default = 1
vnc=1
# enable spawning vncviewer(only valid when vnc=1), default = 1
vncviewer=1
# no graphics, use serial port
#nographic=0
# enable stdvga, default = 0 (use cirrus logic device model)
stdvga=0
#    start in full screen
#full-screen=1
...
When I start the domU with #xm create mydomU.cfg from a xterm, I see a 
listening vnc-port afterwards: 
# netstat -nlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address 
State       PID/Program name
tcp        0      0 127.0.0.1:5900          0.0.0.0:* 
LISTEN     4244/qemu-dm 
...
To this I can connect with vncviewer by ...
$ vncviewer localhost
VNC Viewer Free Edition 4.1.1 for X - built Oct 23 2006 05:52:17
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Mon Nov 20 20:17:27 2006
 CConn:       connected to host localhost port 5900
 CConnection: Server supports RFB protocol version 3.3
 CConnection: Using RFB protocol version 3.3
 TXImage:     Using default colormap and visual, TrueColor, depth 24.
 CConn:       Using pixel format depth 6 (8bpp) rgb222
 CConn:       Using ZRLE encoding
 CConn:       Throughput 20000 kbit/s - changing to hextile encoding
 CConn:       Throughput 20000 kbit/s - changing to full colour
 CConn:       Using pixel format depth 24 (32bpp) little-endian rgb888
 CConn:       Using hextile encoding
Mon Nov 20 20:18:33 2006
 CConn:       Throughput 20000 kbit/s - changing to raw encoding
 CConn:       Using raw encoding
... and a xwindow with XP pops up.
Gruss,
Oliver
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