Comment 11 for bug 951143

I was now able to solve the problem with a script I found on askubuntu and the kernel bugzilla. So at least the r252b can be made working completely.

In order to fix the suspend problem:
do the steps described here: http://askubuntu.com/questions/53372/suspend-hibernate-doesnt-work-on-an-asus-laptop

If you also have the problem that the computer doesn't shut down, but always reboots if you hit the shutdown button, but this command in your /etc/rc.local (the r252b has this. not sure about the 1225B although they are almost equal):
echo "LID" > /proc/acpi/wakeup
right before the "exit 0".