•This is the minimum specification for a two-screen configuration. The maximum number of screens supported on the X server is four. Here, the displays associated with /dev/crt0 and /dev/crt1 are referred to as "<host>:0.0" and "<host>:0.1", respectively.

Screen /dev/crt0

Screen /dev/crt1

Figure 2: Two Physical Displays, Two Separate Screens

•This sample X*screens file could be used on a system using Internal Color Graphics with a 17- inch monitor. In this example, the GraphicsSharedMemorySize is decreased to 1 Mbyte in order to reduce the swap space requirements of the system. Decreasing GraphicsSharedMemorySize is appropriate when you do not intend to run any 3D graphics applications.

ServerOptions GraphicsSharedMemorySize 0x100000

Screen /dev/crt MonitorSize 17 inches

The display diagram would be the same as that of the "Results of Minimal Legal X*screens File" configuration, above.

•This sample X*screens file could be used on a system with a CRX24 graphics device. The overlay visual is selected as the default. There are 255 overlay colormap entries available on the CRX24. The 256th entry is hard-wired to transparent. Having less than 256 colormap entries should not cause a problem for most applications, but for those applications that require 256 colormap entries, the CountTransparentInOverlayVisual screen option should be used as shown below. Any attempts to modify the 256th entry will have no effect on the colormap.

Screen /dev/crt ScreenOptions

CountTransparentInOverlayVisual

The display diagram would be the same as that of the "Results of Minimal Legal X*screens File" configuration, above.

•This sample X*screens file could be used on a system with a HCRX-24 graphics device. The default visual on the HCRX-24 is the opaque overlay visual. All 256 colormap entries are opaque and allocable. If an application requires transparency in the default visual, the "Transparent" keyword can be used to select the transparent overlay visual as shown below.

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Graphics Administration Guide for HP-UX 10.20