This example is the
same as the Xdmx command shown earlier, and it configures two 800 ?— 600 displays
into one 1600 ?— 600 display.
The configuration file is used with the -configfile option to Xdmx:
blue$ Xdmx -configfile dmxconfigfile -ac +xinerama :35
If the config file includes multiple configurations, select one with the -config option:
blue$ Xdmx -configfile dmxconfigfile -config testconfig -ac +xinerama :35
If you??™re going to configure multiple screens on each host, I recommend that the
screens be configured using Xinerama at the host level, so that Xdmx has only one
entry for each display. For example, to build a 16-monitor grid where four 800 ?— 600
monitors are controlled by each of four hosts (host0 through host3), the four monitors
on each host should be configured using Xinerama (Section 4.2) to present a single
3200 ?— 600 display (one row of the grid). The Xdmx configuration would then
look like this:
virtual grid 3200x2400 {
display host0:0 3200x600 @0x0;
display host1:0 3200x600 @0x600;
display host2:0 3200x600 @0x1200;
display host3:0 3200x600 @0x1800;
}
Xdmx will take its input from the first display specified, unless the -input option is
used. The argument to -input can be any of the backend (hardware) displays in the
configuration, or it can be a separate X server, in which case a DMX Console is
drawn that shows outlines of the various backend displays and an outline of each
window.
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