Comment 124 for bug 44058

This annoyance has always existed on my Acer AA1 D150 with Jaunty, as well as with an experimental upgrade to Karmic. Power manager is set to suspend when laptop lid is closed. The screen turns off, and the WiFi indicator light shuts off, but the power switch light remains green, and the fan keeps running; if put into a sleeve, the machine quickly heats up and runs the battery down. In addition, something causes memory to be used up; if left in this state for several hours, the machine is almost unresponsive when the lid is opened because all RAM has been committed, and much of the (2gb) of swap space is being used. None of the power manager settings change this behavior

If suspend is invoked manually (whether through the Fn-F4 key, the "switch" icon at the right of the upper panel, or the hard power key), everything works as expected.