Problem with KVM switch and erratic mouse movement on windows server 2008

Question

I recently installed a PS/2 KVM switch that is connecting two Ubuntu servers and a Windows 2008 server. It worked fine with the Ubuntu boxes, but on the Windows box whenever I try to move the mouse the pointer jumps all over the screen and acts as though the buttons and scroll wheel have been clicked/moved in a seemingly random pattern.

I tried shutting down all of the boxes and disconnecting both Ubuntu boxes from the KVM and resetting the KVM, but when I rebooted the Windows server the problem persisted. If I plug the mouse directly into the Windows server, it works normally, but if I plug it back into the KVM switch the problem returns. Does anyone know of any way of stopping this?

Answer 1

Windows 2008 servers and Windows 7 share the same core for monitoring the status of connected devices - the OS will continuously check/communicate to all the I/O devices (including keyboard, mouse, audio devices and display monitor...etc.)

The issue you experienced should be the PS/2 protocol /emulation with your KVM switch. I suggested to use USB KVM switch with USB DDM (Device Dynamic Mapping) technology.

Rex