I have an ASUS U36S, and no problems using Ubuntu 11.10.
Few hours ago, i upgraded to 12.04 and now nothing works (neither mouse nor almost nothing) I can reboot the system and sometimes the keyboard seems to be more or less configured, so i can type some commands in terminal "F2" (don't know why not in the first one, e.g.) and other times, i can't even login using another terminal but the graphic interface. Anyway, login by this interface, i can't get to execute anything using a terminal into this one.
Should i try to go back to 11.10? Any other solution known? :S
Thanks in advance to any help.