HP xw4400 Workstation User Manual

Page 129

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Troubleshooting

121

If you are still not satisfied with your network performance, look at the log
files on your network switch (if the Receiver is plugged into one). A significant
number of errors on the switch port may signify that the computer or network
is not configured correctly. Work with your IT organization to optimize your
system and network configuration.

2.

Can't connect from an RGS Receiver to a Linux Sender:

The default on RedHat Linux is to bind the machine name to the loopback
interface in the /etc/hosts file:

127.0.0.1

blade2

localhost.localdomain

The RGS Sender will not accept remote connections with this configuration.
Edit the /etc/hosts file and bind the machine name to its proper IP address
as follows:

127.0.0.1

localhost

localhost.localdomain

88.1.89.122 blade2

blade2.bigmoney.com

Troubleshooting Graphics and CPU Performance

The single most dominant factor impacting performance on the sender is the frame-
buffer read performance of the graphics card. Frame-buffer read performance of at
least ten frames-per-second is recommended for optimum performance of HP
Remote Graphics Software.

The HP Remote Graphics Software uses the graphics card to accelerate the rendering
of the image being displayed on the monitor. After the desktop on the remote
system is modified, the Sender reads the rendered image from the frame-buffer, and
then compresses and transmits the image to the Receiver.

On Windows systems, use

BltTest

to test the frame-buffer read performance of the

server. This application is available here: http://www.stereopsis.com/blttest/.

If image updates from the Sender to the Receiver appear slow and erratic, the
Sender might not be getting enough of the CPU to do timely image updates. If the
Sender is running on a Windows operating-system, it can be an operating-system
scheduling issue. Sometimes this can be resolved by increasing the process priority
of the Sender. Please see the section Setting Sender Priorities for further details.

Troubleshooting Remote Audio

This section describes troubleshooting remote audio.

1.

Disabling Audio on a Sender for Windows:

Most audio devices will allow the sender speakers to be disabled while still
allowing audio to arrive at the receiver. This is done by enabling the mute for
the master volume control through the Sounds and Audio Devices control
panel or through the Volume icon in the taskbar. The Volume icon in the
taskbar will change when mute is enabled.

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