Problems recognizing USB Mouse with KVM Switch (Windows XP and 2000)

Posted on 2003-11-06
Last Modified: 2013-12-09
I recently installed a generic USB KVM 2-port switch (specific hardware list below).  I have a laptop running XP and a desktop running 2000 and one monitor, keyboard, and mouse being shared between the two.  I connected the USB mouse and PS2 keyboard to the front of the KVM, but my machines are having difficulty recognizing the mouse on startup.  I've switched the selector back and forth between the two machines, but it's still not recognized.  I finally had to unplug the mouse and connect it directly to the machine I want to use.

Any help would be appreciated.


Generic USB KVM 2-port switch w/ 4 USB ports (one used by mouse)
HP Pavilion ZE5000 laptop w/ Mobility M6 32MB video card
Microsoft Natural Multimedia PS/2 Keyboard
Logitech USB Mouse
Windows XP Pro and Windows 2000 Pro
Question by:johnelstad
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LVL 67

Expert Comment

ID: 9697571
Presumably your keyboard is also USB and is working fine?  Have you checked BIOS settings?
I've had a similar problem in the past and it turned out to be my extender cable.  If you're using one try swapping it from the keyboard to the mouse. . .

Author Comment

ID: 9697723
Thanks for helping out.

Actually, the keyboard is PS/2 and, yes, it is working fine.  A complete list of my hardware configuration is in the original email.

I have checked basic BIOS settings, but I'm no expert, so recommendations would be welcome.  It's a Phoenix BIOS supplied by HP which has very few options.

I don't think I'm using an extender cable.  The mouse and keyboard connect directly to the KVM switch.

Thanks again,


Accepted Solution

ratstud earned 250 total points
ID: 9698055
do you have any other USB devices plugged into the switcher.  Do you have something else besides a USB mouse you can try??  (USB Printer, iPod, ext. usb hard drive, etc...)

Does the KVM switch have a spot to plug in the mouse to a PS/2... you could try using a USB->PS/2 converter (one probably came with your mouse) and use the PS/2 port

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Author Comment

ID: 9698123
I have a 4-port USB hub that plugs into the switcher.  All of the peripherals connected to it work fine.  I just printed a document via the USB printer to make sure.

I'll have to pick up a USB->PS/2 converter as I don't have a PS/2 mouse.  I'll let you know if that helps.



Expert Comment

ID: 9698212
I wouldn't think it would cost more than $10 for the adapter... I just took a picture of what the adapter looks like in case you get a retarded salesperson. :)

The USB end

The PS/2 end

The adapter size compared to an ink pen

Good luck!


Expert Comment

ID: 9698248
Heres one if you want to buy online.... $7.42

or maybe just borrow one from a friend if you can... I've gotten one with every USB mouse I've ever purchased.

Also, update your mouse drivers if you haven't already... they would be available from

Expert Comment

ID: 9699647
you must on each PC install the drivers.
LVL 69

Expert Comment

ID: 9701222
I would also check if the mouse is making good electrical contact - jiggle it a bit before turning the system on and see if that doesn't improve the situation.

Author Comment

ID: 9704766
He shoots; he score!  RatStud nails it.  Now that I have the USB->PS/2 adapter ($5 at Fry's) things work great on both machines.  In retrospect, it's such a simple solution I'm embarassed I didn't think of it myself.

Thanks for the all the help!


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