mouse and keyboard locking up

[Claude Jones]

My Fedora box is on an IOGear KVM. It's always been completely reliable. 
In the recent past, maybe after I preupgraded from F15-F16 recently, I 
found that switching from the Fedora machine to a different computer 
would result in a totally non-responsive mouse and keyboard when I went 
back to the Fedora machine, even if I'm only off for a few seconds. This 
delay lasts for around 1-2 minutes. Then, it returns and remains fine 
till I switch computers again. Here's partial readout from 
/var/log/messages as I switch to a different machine, then immediately 
switch back. You can see the disconnect, then the recognition of my MS 
mouse and Keytronic keyboard as I bring the machine into focus again in 
those first few lines - the final two lines are actually followed by 
around 30 or more similar ones in the log and seem to indicate USB 
related timeouts - it's looking and not finding something which I assume 
is causing the long delay - anyone got an idea of what I can do to fix this?

Dec 16 15:19:32 fedoraleesburg acpid: input device has been disconnected
Dec 16 15:19:32 fedoraleesburg kernel: [ 1525.029260] usb 3-2: USB 
disconnect, device number 3
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.120295] usb 3-1: new low 
speed USB device number 4 using uhci_hcd
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.286150] usb 3-1: New USB 
device found, idVendor=03f9, idProduct=0100
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.286157] usb 3-1: New USB 
device strings: Mfr=4, Product=26, SerialNumber=0
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.286162] usb 3-1: Product: 
Keytronic USB Keyboard
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.286165] usb 3-1: 
Manufacturer: Key Tronic
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.371292] input: Key Tronic 
Keytronic USB Keyboard as 
/devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1:1.0/input/input4
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.371749] generic-usb 
0003:03F9:0100.0003: input,hidraw0: USB HID v1.10 Keyboard [Key Tronic 
Keytronic USB Keyboard] on usb-0000:00:1a.0-1/input0
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.472946] usb 3-2: new low 
speed USB device number 5 using uhci_hcd
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.643804] usb 3-2: New USB 
device found, idVendor=045e, idProduct=0039
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.643807] usb 3-2: New USB 
device strings: Mfr=1, Product=3, SerialNumber=0
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.643809] usb 3-2: Product: 
Microsoft 5-Button Mouse with IntelliEye(TM)
Dec 16 15:19:36 fedoraleesburg kernel: [ 1529.643811] usb 3-2: 
Manufacturer: Microsoft
Dec 16 15:19:37 fedoraleesburg kernel: [ 1529.661912] input: Microsoft 
Microsoft 5-Button Mouse with IntelliEye(TM) as 
/devices/pci0000:00/0000:00:1a.0/usb3/3-2/3-2:1.0/input/input5
Dec 16 15:19:37 fedoraleesburg kernel: [ 1529.662258] generic-usb 
0003:045E:0039.0004: input,hidraw1: USB HID v1.10 Mouse [Microsoft 
Microsoft 5-Button Mouse with IntelliEye(TM)] on usb-0000:00:1a.0-2/input0
Dec 16 15:19:37 fedoraleesburg mtp-probe: checking bus 3, device 5: 
"/sys/devices/pci0000:00/0000:00:1a.0/usb3/3-2"
Dec 16 15:19:37 fedoraleesburg mtp-probe: checking bus 3, device 4: 
"/sys/devices/pci0000:00/0000:00:1a.0/usb3/3-1"
Dec 16 15:19:37 fedoraleesburg kernel: [ 1529.904524] usb 6-1: new full 
speed USB device number 6 using uhci_hcd
Dec 16 15:19:52 fedoraleesburg kernel: [ 1544.997029] usb 6-1: device 
descriptor read/64, error -110
Dec 16 15:20:07 fedoraleesburg kernel: [ 1560.188373] usb 6-1: device 
descriptor read/64, error -110
Dec 16 15:20:07 fedoraleesburg kernel: [ 1560.391234] usb 6-1: new full 
speed USB device number 7 using uhci_hcd
Dec 16 15:20:22 fedoraleesburg kernel: [ 1575.481735] usb 6-1: device 
descriptor read/64, error -110
Dec 16 15:20:37 fedoraleesburg udevd[638]: timeout 'mtp-probe 
/sys/devices/pci0000:00/0000:00:1a.0/usb3/3-1 3 4'
Dec 16 15:20:38 fedoraleesburg udevd[1688]: timeout 'mtp-probe 
/sys/devices/pci0000:00/0000:00:1a.0/usb3/3-2 3 5'
Dec 16 15:20:38 fedoraleesburg kernel: [ 1590.673120] usb 6-1: device 
descriptor read/64, error -110
Dec 16 15:20:38 fedoraleesburg kernel: [ 1590.875861] usb 6-1: new full 
speed USB device number 8 using uhci_hcd
Dec 16 15:20:38 fedoraleesburg udevd[638]: timeout: killing 'mtp-probe 
/sys/devices/pci0000:00/0000:00:1a.0/usb3/3-1 3 4' [2988]
Dec 16 15:20:39 fedoraleesburg udevd[1688]: timeout: killing 'mtp-probe 
/sys/devices/pci0000:00/0000:00:1a.0/usb3/3-2 3 5' [2989]
-- 
Claude Jones Brunswick, MD, USA