sh
Whenever you change /etc/inittab, you must inform init of the change:
# init q
You can then test the kiosk mode by switching into from your current runlevel:
# init 4
Once you are confident that the kiosk is properly configured, you can change the
default system boot runlevel by changing the initdefault line in /etc/inittab. To temporarily
boot into runlevel 3 or 5 for maintenance, append the desired runlevel to the
boot parameters (Section 2.5).
Remember to add a password to the boot manager configuration
before deploying the kiosk, in order to prevent unauthorized booting
into any runlevel other than 4.
15.12 Creating a Video Wall
Video walls??”huge grids of monitor or projection screens set up to show large
images??”are always impressive. Xinerama can be used to create displays that span as
many screens as you have video cards, but typical PC motherboard design limits you
to six or seven video cards. For larger displays, DMX provides a way of merging displays
from multiple hosts into one giant display.
DMX stands for Distributed Multihead X. The DMX server, Xdmx, is an X server that
uses other X servers as screens. This permits you to combine almost any number of
monitors into one giant display.
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