finally got around to it (had to install adb, been lazy)
i typed both commands in after adb shell
the first told me "sleeping"
the second waited until i pressed the power button on the device itself to react and then brought me back to the shell, the device did wake up
i dont know if i was supposed to see anything else, but the phone didnt freeze or SoD (im assuming that's what we were looking for?)
so this should mean that the didle code in cm9 is working correctly (at least on the i777, probably others as well) right?