Comment 17 for bug 134680

The only other thing that I think I have to add to this is that when I resume from suspend or try and hibernate my suspend/hibernate activity light (which looks like a crescent moon) starts flashing and doesn't stop until I restart.

I have filed a separate bug here which may or may not turn out to be duplicate:

https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/136603