I made an upgrade from 10.04 to 12.04. It all went smooth, more or less, but at end I have the real problem - my keyboard is not working! I tried both USB/PS2 keyboards, but it's the same story (mouse is working).
So, I can type my password on login screen, and after successful login, I can't use my keyboard at all. What's funny, when I change switch to Guest user keyboard is working. Form that Guest session I can login via "ssh -X" with my user name and keyboard is working perfectly, both in terminal and every program I start. I tried everything I encountered on the web with "keyboard problems in Ubuntu 12.04", but without any solution. I did "upgrade" and "dist-upgrade", I also installed "Gnome" and login into "Gnome-classic" session, but still facing the same problems.
I would be grateful to any help. Thank you in advance!
Best regards, Aleksandar C.