ah oué, cool ! ça peut même servir à d'autres trucs...
xnest an X server that is itself an X client. This allows you to run a server within a server; this is occasionally useful for testing new window managers and other X clients.
Xnest relies upon its parent X server for font services.
[^] # Re: XFree 4.2.99
Posté par Nÿco (site web personnel) . En réponse à la dépêche Des nouvelles du desktop. Évalué à 2.
xnest an X server that is itself an X client. This allows you to run a server within a server; this is occasionally useful for testing new window managers and other X clients.
Xnest relies upon its parent X server for font services.
http://www.xfree86.org/4.2.1/Xnest.1.html(...)