Hello, I can confirm all of the above on my ASUS M2400N too.
Greetings, Walter -- kernel 2.6.20-6 problem on asus centrino with kubuntu feisty herd 3, acpi=off partial solved https://launchpad.net/bugs/83290 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs