Re: [Condor-users] USE_VISIBLE_DESKTOP stops working after a while

["Matt Hope" <matthew.hope@xxxxxxxxx>]

On 5/25/07, Ian Chesal <ICHESAL@xxxxxxxxxx> wrote:
> > Hi Ian,
> >
> >> We've been trying to use the USE_VISIBLE_DESKTOP setting to run our
> GUI
> >> tests. Works well up to a point. After a while Condor starts to
> complain
> >> that it can no longer get a visible desktop and runs the job without
> it.
> >
> > This is a long shot, but it might be Remote Desktop causing the
> trouble.
> > When someone logs in to a machine using Remote Desktop it locks down
> or
> > disables other login sessions that are currently running. This might
> > affect Condor, depending on how it interacts with the "visible
> desktop"
> > login session.
>
> Tony: good idea. This could be close to the problem. We don't enable
> Windows Terminal Services on these machines. But we do keep them logged
> in as a domain user that's been given Administrator access to the box
> and check on their GUI sessions with VNC. I'll see if logging the
> machine out has any effect (although then there wouldn't be a visible
> desktop to use which might not work).

VNC (and its clones and commercial ports) use a very similar hooking
mechanism as remote desktop to the extent that use on one while the
other is active tends to kill one or both of them. I would treat your
VNC client as the most likely candidate.

Matt