HOWTO Detach and Re-attach Xwindows applications like GNU Screen I finally found out how to leave X apps running on my server detached, and come back to them later. To do this you need Xephyr, xmove and xvfb. In addition it is useful to have GNU Screen and of course ssh with X forwarding. xvfb provides a null x server (i.e. one without a real display) for applications to run on when you are not ss