I have a Toshiba laptop that freezes when I plug in the AC Power cord. But I remedy this in Windows 7 by going into Safe Mode then
Control Panel > Device Manager > Processors and disable both of them.
What I am disabling is the processor driver actually thus preventing the processor from going into C or P states. The problem is, whenever the processor goes in power management or downclocks, the system freezes and shows colorful horizontal or vertical lines.
I wanted to try out Ubuntu 11.10 and I don't know how to do this in this new OS.
P.S. I've just installed Ubuntu 11.10 and I have no idea on it. I want to move to this new OS and be done with Windows. Can anyone help me on this?