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Connection length table – HP 409054-003 User Manual

Page 90

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Troubleshooting 90

Problem Troubleshooting

When connecting a
serial interface adapter

to a server running Red

Hat Linux or SLES, the
numeric keypad keys

on a PC keyboard do

not map to VT100
emulation under the

Linux shell. Using the

numeric keypad with

the vi text editor causes
function characters to

appear rather than

numbers.

Use the "printenv" command to show the TERM assigned under Linux. It can be

matched appropriately with other termcap entries by editing the profile or setting the
TERM equal to "ansi". For PC keyboards, ANSI is the most compatible emulation.
-or-
Edit your /etc/inittab as
s0:2345:respawn:/sbin/agetty -h ttyS0 115200, 9600 ansi
Where ttyS0 is the serial device name under Linux where the serial interface

adapter is connected.
Then at a shell prompt, enter init q, or reboot the system.

Virtual Media is not

working properly.

Be sure that you are using the following:

HP IP Console Switches with Virtual Media or HP Server Console Switches with

Virtual Media

A USB 2.0 interface adapter with Virtual Media, or a PS2 interface adapter with

Virtual Media server and an operating system that supports high-speed

composite USB 2.0 devices

You must be able to see a Virtual Media CD drive and a mass storage drive on the
target server to be able to map a local resource to the remote server.

Virtual Media is

responding slowly.

See "Using Virtual Media (on page

58

)."

The local user cannot
map a USB composite

media device.

See "USB composite media devices ("

Using USB composite media devices

" on page

63

)."

The keyboard does not
respond after opening

a Virtual Media

session.

See "USB 2.0 composite device limitations ("

Limitations of using USB 2.0 composite

devices with Virtual Media

" on page

58

)."

Options in the Virtual

Media dialog box are
not available.

See the "Configuring Virtual Media parameters" section in the HP IP Viewer User

Guide.

The video resolution is

distorted.

See "Connection length table (on page

90

)."

Connection length table

The console switch offers optimum video performance when the distance between the server and console
switch is 22.9 m (75 ft) or less at video resolutions 1280 x 1024 at 75 Hz. The system is capable of

operation at distances up to 30.5 m (100 ft) at reduced video resolutions 800 x 640 at 60 Hz, worst

case.

1280 x 1024

1024 x 768

800 x 640

22.9 m (75 ft)

X

X

X

30.5 m (100 ft)

X