Re: [Xen-devel] Fwd: Display/Console for HVM domUs

["Andrew D. Ball" <aball@xxxxxxxxxxxxxxxxxx>]

Is anyone considering FreeNX in addition to VNC?

Peace.
Andrew

On Wed, 2006-11-15 at 01:05 +0000, Daniel P. Berrange wrote:
> On Tue, Nov 14, 2006 at 04:52:41PM -0800, jdsw wrote:
> > Forwarding to dev list.
> > /Jd
> > 
> > jdsw <jdsw2002@xxxxxxxxx> wrote: Date: Thu, 9 Nov 2006 18:37:07 -0800 (PST)
> > From: jdsw <jdsw2002@xxxxxxxxx>
> > Subject: Display/Console for  HVM domUs
> > To: XenUsers <xen-users@xxxxxxxxxxxxxxxxxxx>
> > 
> >  Hi 
> >   I have couple of questions on displays under HVM
> >   1.  When I kill window of DomU with sdl=1, the dom also dies... Is this a 
> > bug ? 
> >       or  expected behaviour. (quite annoying)
> 
> Its expected - whether its desirable is a completely different matter. I 
> question
> the usefullness of SDL at all because of its dependance on having a 
> connection to
> the X server available form the shell in which you launch the guest. I can't
> imagine how this will ever work once XenD has support for managing inactive 
> domains
> and stopping/starting them via the XML-RPC interface - since you'll not even 
> have
> the SSH forwarded display anymore.
> 
> >   2. How do I determine the display number for DomUs running with vnc ? For 
> > me, 
> > the vnc display numbers are determined by the order in which the domUs were 
> > started. This is highly inconveniernt. I tried the vncdisplay=5 in the domu 
> > config file but it does not help. 
> 
> If you specify 'vncunused=1' in the config file it will allocate the first 
> unused
> port number counting from 5900. If you want to specify an explicit display 
> then
> set 'vncdisplay=5' and 'vncunused=0'.
> 
> >    Also, xm list -l domname also does not contain any indication of what 
> > display
> >  is being used ? I want to programatically determined the display number.
> 
> The info on what port is being listened on is not exposed by either xm or 
> XenD.
> Instead it is hidden away in xenstore.
> 
>   # xenstore-ls /local/domain/1 | grep vnc
>      vnc-port = "5902"
> 
> If you have libvirt installed, then it is also available when using virsh
> command to view an XML dump of a domain, eg
> 
>  # virsh dumpxml demovm | grep graphics
>     <graphics type='vnc' port='5902'/>
> 
> 
> Regards,
> Dan.


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