[Wylug-help] Different Content to Different Displays Under X

[Jason Lander]

> Is this even theoretically possible?

Theoretically yes. I think it is part of the design of X that a `display'
may have more than monitor.

The full form of the DISPLAY variable is

   hostname:displaynumber.screennumber

Quoting the X manual page.

  displaynumber
         The  phrase "display" is usually used to refer to
         collection of monitors that share  a  common  keyboard  and
         pointer
         ...
  screennumber
         Some displays share a single keyboard and pointer among two
         or more  monitors. Since each monitor has its own set of windows,
         each screen is assigned a screen number (beginning at 0)

This seems to be controlled via the ServerLayout section in
/etc/X11/XF86Config-4.

- Jason