Is there any way to open a graphical program (for instance, gedit) while using X11 forwarding over SSH and transfer the X server connection back to the X server on the SSH host?
Can I move a running application to a different X server?
ssh;xorg;xforwarding
If you look at the Wikipedia page on the subject there are several apps mentioned.Xmoveexcerptxmove is a computer program that allows the movement of X Window  System applications between different displays and the persistence of  X applications across X server restarts.[4] It solves a problem in the  design of X, where an X client (an X application) is tied to the X  server (X display) it was started on for its lifetime. Also, if the X  server is shut down, the client application is forced to stop running.xmove lets the client disconnect from its current X server, and  connect to a new one, at any time. The transition is completely  transparent to the client. xmove works by acting as a proxy between  the client and server. It is a pseudoserver which stores enough  server state so that clients can connect to a new server without being  disrupted.Xpraexcerptxpra or X Persistent Remote Applications is a tool which allows you to  run X clients usually on a remote host and then direct their display  to your local machine without losing any state.1It differs from standard X forwarding in that it allows disconnection  and reconnection without disrupting the forwarded application. It  differs from VNC and similar remote display technologies in that xpra  is rootless: i.e., applications forwarded by xpra appear on your  desktop as normal windows managed by your window manager, rather than  being all trapped in a box together. Xpra also uses a custom  protocol that is self-tuning and relatively latency-insensitive, and  thus is usable over worse links than standard X.Guievictexcerptguievict is a computer program which enables the GUI of any  application for XFree86 implementation of X Window to be transparently  migrated to or replicated on another display. Unlike some program  providing similar functionalities, it requires neither prearranging  steps such as re-linking the application program binary nor  re-directing the application process's window system communication  through a proxy like xmove does.Guievict is based on a small X server extension that enables an  application to retrieve its window state from the X server and a  library of GUI migration functionality that is injected in the  application process at run time. Code injection or runtime  code-patching can be done via the DynInst API. However, guievict  contains its own implementation to avoid requiring users to install  DynInst.Of the 3 of these, Guievict sounds like what you're looking for, mainly that it can checkpoint the state of X application AppX and migrate it to another X server where it can be restored.