KVM over IP Module
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3.3 Keyboard, Mouse, and Video configuration
Between the IP-KVM and the host, there are two interfaces available for transmitting
keyboard and mouse data: USB and PS/2. The correct operation of the remote mouse depends
on several settings which will be discussed in the following subsections.
3.3.1 IP-KVM keyboard settings
The IP-KVM settings for the host's keyboard type have to be corrected in order to make the
remote keyboard work properly. Check the settings in the IP-KVM Web front-end for details.
3.3.2 Remote Mouse Settings
A common seen problem with KVM devices is the synchronization between the local and
remote mouse cursors. The IP-KVM addresses this situation with an intelligent
synchronization algorithm. There are two mouse modes available on the IP-KVM:
Auto mouse speed
The automatic mouse speed mode tries to detect the speed and acceleration settings of
the host system automatically. See the section below for a more detailed explanation.
Fixed mouse speed
This mode just translates the mouse movements from the Remote Console in a way that
one pixel move will result in n-pixel moves on the remote system. This parameter n is
adjustable with the scaling. Please note that this works only when mouse acceleration is
turned off on the remote system.
3.3.3 Automatic mouse speed and mouse synchronization
The automatic mouse speed mode performs the speed detection during mouse synchronization.
Whenever the local and remote mouse cursors move synchronously or not, there are two ways
for re-synchronizing local and remote mouse cursors:
Fast Sync
The fast synchronization is used to correct a temporary, but fixed skew. Choose the
option using the Remote Console options menu or press the mouse synchronization
hotkey sequence in case you defined one.
Intelligent Sync
If the fast sync does not work or the mouse settings have been changed on the host
system, use the intelligent resynchronization. This method takes more time than the fast
one and can be accessed with the appropriate item in the Remote Console option menu.
The intelligent synchronization requires a correctly adjusted picture. Use the auto
adjustment function to setup the picture, and make sure that there are no window at the
top left corner of the remote desktop that are able to change the mouse cursor shape from
