Iain Buchanan writes:

> On Thu, 2007-09-27 at 20:13 +0200, Alex Schuster wrote:

> > For a little while now I have a problem on one of my hosts, X11
> > forwarding stopped working.
>
> how are you ssh-ing in?  -X? -Y?

Yes. Well, I usually have forwarding enabled automatically 
in /etc/ssh/ssh_config, but I always try with -X or -Y anyway.

> What is the actual error from the client?

$DISPLAY is not set.

But I notice a change since yesterday: I now get this warning:
Warning: No xauth data; using fake authentication data for X11 forwarding.

Don't know what causes this, I emerged a couple of things due to world 
update and (still!) some problems with the expat update, but nothing which 
I would think has to do with ssh. Anyway, DISPLAY still does not get set.

        Alex
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