I have installed Ubuntu 12.10 on my HP Pavilion g6 Notebook. It is working all fine except when I try to shut it down, it gets unresponsive. It would display some processes and hangs up. I am new to this OS so I don't know up the problem could be. I don't know what is happening.
Also, sometimes it shows an error message saying:
Sorry, Some Internal Error has occured.
And then it asks for checking online for solution, but that has also not provide any help.