After an upgrade to 12.04, my USB port stopped identifying my usb keyboard logitech K120. I have switched keyboard and mouse to ensure that USB port is working.
The mouse works perfect but keyboard does not work on another usb port either. I plugged the USB keyboard to another computer it works fine. Somehow, after 12.04 upgrade, Ubuntu stops recognizing USB keyboard on a laptop AMILO Fujitsu Siemens.
Any advise please? Thanks.