So you have this issue with a wired mouse, that is somewhat unexpected I must say.
This sounds like an issue with the firmware in the KVM-switch then.
On my CS1764a I can force a reset of the attached USB devices by doing the following:
- Press and hold numlock
- Press and release the numpad ‘-’ key
- Release numlock
- The capslock (and other) LED(s) should be flashing now
- Now press the F5 key to reset attached USB devices
Most Aten KVM switches also have 2 modes for the mouse an emulated mode where extra features like ctrl + mouse-wheel scroll can be tied to switching kvm-input and a direct pass-through mode.
You should be able to see your current KVM settings by opening a text-editor and then doing Num-lock + ‘-’ (as described above) followed by pressing F4 instead of F5.
On my Aten this says the following atm:
hotkey:
[num lock]+[-] and [scroll lock],[scroll lock]
os setting:
port1 auto-detect
port2 auto-detect
port3 auto-detect
port4 auto-detect
mouse switch: off
mouse emulation: on
power on detection: off
port1 english
port2 english
port3 english
port4 english
Notice the mouse emulation: on if you press Num-lock + ‘-’ followed by pressing ‘M’ that will toggle the mouse-emulation option, perhaps that helps?