Vrx Device-Dependent Information; Vrx Device Files - HP b2600 Administration Manual

VRX Device-Dependent Information

This section includes information on the PersonalVRX (PVRX) and TurboVRX (TVRX) graphics
devices.
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Note: The PersonalVRX and the TurboVRX are no longer supported as of the February, 1999 10.20
Xserver cumulative patch; the information below is presented for those who are running previous
versions of the operating system.
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Supported Visuals
The following visuals are supported:
• Depth 3 (overlay and combined mode)
• Depth 4 (overlay and combined mode)
• Depth 8 (image and combined mode)
• Depth 12 (image and combined mode, TVRX only)
• Depth 16 (Creates a double-buffer version of the Depth 8 visual)
• Depth 24 (image and combined mode, TVRX only)
None of these visuals support DBE or MBX double-buffering.
In image mode the default visual is the Depth 8 PseudoColor visual. In overlay mode it is the depth 3 or
depth 4 PseudoColor visual as specified by the device file. In combined mode the first device file
specifies the default visual. Examples are shown in the section below.

VRX Device Files

Different device files exist for the image planes and overlay planes on VRX devices. The X server
supports three different modes of operation on VRX devices: image, overlay or combined.
In image mode, the X server runs only in the image planes. This is the default on VRX devices. To
operate in image mode, the image device file should be specified as the primary screen device. For
example:
/dev/crt
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# Image mode
Graphics Administration Guide for HP-UX 10.20