In this
chapter, we??™ll examine the techniques available for starting X and discuss the best
approach for some common scenarios, including:
??? Presenting a graphical login display (Section 2.4)
??? Configuring a home system with two graphical login displays, so that two people
can alternately use it without disturbing each others??™ work (Section 2.7)
??? Starting X on a server system only when it is really needed, in order to conserve
system resources for more important uses (Section 2.9)
??? Starting an X server that is displayed within another X server (Section 2.11)
We??™ll also take a look at how to use Virtual Terminals (Sections 2.2 and 2.10), how
to simulate a mouse when a bad configuration leaves you without one (Section 2.12),
and how to terminate X (Sections 2.13 and 2.14).
2.2 Virtual Terminals
Linux, FreeBSD, and many other modern Unix kernels support a virtual terminal
(VT) (or virtual console) capability, which provides independent virtual video cards.
The monitor, keyboard, mouse, and physical video card are associated with only one
VT at a time, and each virtual video card can be in a different display mode??”some
may be in character mode while others are in graphical mode.
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