How does one configure synergy to use multiple X11 screens (:0, :1, ...)?

Question

Configuring synergy for multiple computers, each with a single screen, is fairly easy. But it is not so obvious how to configure multiple X11 screens. For example, sys1, a minimac is on the right. sys1 is the server and has a single monitor (screen). To the left of sys1 is a Fedora 9 system, sys2, with two X11 displays: sys2:0.0 and sys2:0.1 I'm guessing that one invents names and uses aliases with ports specified (5900 and 5901 in my case), which is the avenue I will investigate. But surely someone has crossed this bridge before.

Answer 1

I found the basic answer here. Here is the config file for this example:

section: screens
  sys1
  sys2
  sys21
end

section: links
  sys1:
    left = sys21
  sys2:
    left = sys2
    right = sys1
  sys21:
    right = sys21
end

is basically all you need. Then, start the synergy programs as follows:

On the server (sys1):

$ synergys -f --config synergy.conf --name sys1

On the client, display :0.0

$ synergyc -f -n sys2 sys1

On the client, display :0.1

$ synergyc -f -n sys21 sys1

And away you go ...