HP Remote Graphics 4.2.0 User's Guide

Transparent Overlay Windows - Certain applications, primarily 3D applications, create windows in the overlay planes that entirely cover the main application windows that exist in the image planes. These overlay windows are primarily transparent and are used to contain text or other rendered images that should not be drawn into the image planes of the application. These overlay transparent windows are also called glass-bottom windows, as they can be used to "see into" the image planes. Applications that use glass-bottom windows do not currently share well with Remote Graphics Software.

This problem is present only on HP-UX systems with graphics devices that 1) support overlay planes, 2) have the overlay planes enabled, and 3) run applications that create glass-bottom windows. As a work-around, to enable these applications to share properly over a Remote Graphics Software connection, the overlay planes can be disabled. Most applications will still run correctly with the overlays disabled. To disable the overlays, the X server's configuration file must be edited. The following table shows where the various configuration files exist:

X server (platform)

Configuration File

 

 

Xhp (PA HP-UX)

/etc/X11/X0screens

 

 

Xf86 (PA HP-UX)

/etc/X11/XF86Config

 

 

The following X0screens entries will disable the overlays for an Xhp X server:

Screen /dev/crt

ScreenOptions

SuppressPseudoColorOverlayVisual

The following XF86Config entries will disable the overlays for an Xf86 X server running ATI Fire GL-UX graphics:

Section "Device"

"hp Fire GL-UX"

 

Identifier

 

Driver

"firegl123"

 

VendorName

"hp"

 

BoardName

"Fire GL-UX"

 

Card

"Fire GL-UX"

"false"

Option

"Overlay"

Option

.... other options ....

#EndSection

 

 

7.Remote Audio Issues (Linux only): ALSA Quirks:

ALSA drivers can have problems mapping correct mixer channels to the correct sliders. This means that on some more advanced or proprietary sound hardware, the “Master Volume” control might incorrectly get mapped to the “Headphones” slider or “Wave Mix” slider for example. The Receiver tries to do its best to remedy these situations by adjusting common sliders like “PCM,” “WAVE,” and “LINE” to appropriate levels, then attaching the volume slider to “Master Volume” and the “Headphone” mixer channels. This should

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