Comment 33 for bug 41994

I should mention that step 1 only works with the fglrx drivers, and perhaps VESA, because the lid switch is controlled through the bios naturally (I think). I had all sorts of trouble getting the lid switch to work at all (cpu overload.. another bug) using the "ati" / "radeon" drivers.

A way to check is to kill the gnome-power-manager and try the lid switch. Mine worked perfectly if it was killed, so I did everything to disable its effects when it is running (hence setting it to "nothing")