Comment 7 for bug 990870

I have the same problem. I have a clean install of Ubuntu 12.04 (32bit) and everything was good until 19th May - so presumably an update at that time has somehow disabled USB keyboard detection. When I get the login screen I cannot type my password. If I remove the keyboard USB plug then re-insert it I can type as normal. I have tried using different USB ports and the behaviour is the same. This one needs an urgent fix please!