I have the same issue and I get complaints that Xephyr doesn't implement the security extension.
What works:
Code:
$ LOCAL_IP=10.0.3.100
$ REMOTE_IP=10.0.3.135
$ X_DPY=:10
$ Xephyr $X_DPY -glamor -screen 1600x900x24 -listen TCP
$ DISPLAY=:10 xterm;
.. then at the xterm in the Xephyr X server:
Code:
$ compton &>/dev/null </dev/null & # really helps with performance
$ xhost +$REMOTE_IP
... then at the remote host:
Code:
$ fluxbox $LOCAL_IP &>/dev/null </dev/null &
... after that you can close the xterm and launch remote apps from fluxbox
Bizzarely, if you issue that xhost command from anywhere other than a terminal running in Xephyr, it gets ignored. If you close that terminal, poof, you can no longer connect, unless you have a persistent connection from the remote already, which is the role fluxbox performs.
[GUMP]And that's all I have to say about that[/GUMP]