Graphics Administration Guide (July 2008)

DefaultDepth <Depth>
Option ...
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SubSection “Display”
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EndSubSection
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EndSection
The Identifier entry specifies the unique name for this screen. The Identifier generally
must match a ScreenID listed in the active ServerLayout section. The Screen section
provides information specific to the whole screen, including screen-specific Options.
In multi-screen configurations, there will be multiple active Screen sections, one for
each head.
The Device keyword specifies which Device section is used for this screen. This is what
binds a specific graphics card to a screen. The DeviceID must match the Identifier of a
Device section in the configuration file.
The Monitor keyword specifies which Monitor section is used for this screen. This is
what binds a specific monitor to the screen. The MonitorID must match the Identifier
of a Monitor section in the configuration file.
The DefaultDepth keyword specifies which color depth the server should use by default.
The -depth command line option can be used to override this. If neither is specified,
the default depth is driver specific, but in most cases is 8.
Various Option flags may be specified in the Screen section. Some are driver specific
and are described in the driver documentation. Driver-independent options are
described here.
Table 2-3 Options for Screen section
DescriptionEntry PositionEntry
Enables XAA (X Acceleration Architecture), a mechanism that makes
video cards' 2D hardware acceleration available to the Xserver. This
option is on by default. There are many options to disable specific
accelerated operations. Note that disabling an operation will have
no effect if the operation is not accelerated (whether due to lack of
support in the hardware or in the driver). Source: XF86Config man
page.
NAAccel
Each Screen section must contain one or more Display subsections. Those subsections
provide depth configuration information, and the one chosen depends on the depth
that is being used for the screen. The Display subsection format is described in the
section below.
20 configuring X Server on HP-UX (OEM graphics cards)