I bought a Lenovo IdeaPad Y400 last week that comes with Windows 8. It worked fine but I hated it so I installed Ubuntu 12.10 and the problems started with the keyboard and touchpad.
Every like 2 minutes the keyboard freezes and start adding random letters (4 times for this short text already) and I cannot use neither the mouse nor the touchpad. It unfreezes if I press the keyboard with my hand (All the letters I can). Almost always the Windows button, the CapsLock, the secondary mouse button one get on.
I uninstalled Ubuntu 12.10 and installed 12.04 and nothing has changed. I've tried all NVIDIA drivers as well and nothing changes. And again, it worked alright with Window
I really dont want to use Windows again