Raritan Engineering KX2-864 User Manual

Chapter 2: Installation and Configuration

Note: Once connected to the target server, in many Linux graphical
environments, the <Ctrl> <Alt> <+> command will change the video
resolution, scrolling through all available resolutions that remain enabled
in the XF86Config or /etc/X11/xorg.conf, depending on your X server
distribution.

To configure KVM target servers running Linux (command line):

1. Set the mouse acceleration to exactly 1 and set the threshold to

exactly 1. Enter this command: xset mouse 1 1. This should be set
for execution upon login.

2. Ensure that each target server running Linux is using a resolution

supported by the Dominion KX II at a standard VESA resolution and
refresh rate.

3. Each Linux target server should also be set so the blanking times are

within +/- 40% of VESA standard values:

a. Go to the Xfree86 Configuration file XF86Config.

b. Using a text editor, disable all non-Dominion KX II supported

resolutions.

c. Disable the virtual desktop feature (not supported by the

Dominion KX II).

d. Check blanking times (+/- 40% of VESA standard).

e. Restart

computer.

Note: If you change the video resolution, you must log off of the target
server and log back in for the video settings to take effect.

Note for Red Hat 9 KVM Target Servers

If you are running Red Hat 9 on the target server using a USB CIM, and
are experiencing problems with the keyboard and/or mouse, there is an
additional configuration setting you can try.

Tip: You might have to perform these steps even after a fresh OS
installation.

To configure Red Hat 9 servers using USB CIMs:

1. Locate the configuration file (usually /etc/modules.conf) in your

system.

2. Using the editor of your choice, make sure that the alias

usb-controller line in the modules.conf file is as follows:

alias usb-controller usb-uhci

Note: If there is another line using usb-uhci in the /etc/modules.conf
file, it needs to be removed or commented out.