Raritan dominion kx III Administrator's Manual page 302

Chapter 7: Virtual KVM Client (VKC and VKCs) Help
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Intelligent Mouse Synchronization Conditions
The Intelligent Mouse Synchronization command, available on the
Mouse menu, automatically synchronizes mouse cursors during
moments of inactivity. For this to work properly, however, the following
conditions must be met:

The active desktop should be disabled on the target.

No windows should appear in the top left corner of the target page.

There should not be an animated background in the top left corner of
the target page.

The target mouse cursor shape should be normal and not animated.

The target mouse speeds should not be set to very slow or very high
values.

Advanced mouse properties such as "Enhanced pointer precision" or
"Snap mouse to default button in dialogs" should be disabled.

Choose "Best Possible Video Mode" in the Video Settings window.

The edges of the target video should be clearly visible (that is, a
black border should be visible between the target desktop and the
remote KVM console window when you scroll to an edge of the
target video image).

When using the intelligent mouse synchronization function, having a
file icon or folder icon located in the upper left corner of your desktop
may cause the function not to work properly. To be sure to avoid any
problems with this function, Raritan recommends you do not have file
icons or folder icons in the upper left corner of your desktop.
After autosensing the target video, manually initiate mouse
synchronization by clicking the Synchronize Mouse button on the toolbar.
This also applies when the resolution of the target changes if the mouse
cursors start to desync from each other.
If intelligent mouse synchronization fails, this mode will revert to standard
mouse synchronization behavior.
Please note that mouse configurations will vary on different target
operating systems. Consult your OS guidelines for further details. Also
note that intelligent mouse synchronization does not work with UNIX
targets.