[mydigitalself]

Btw, I can tell you exactly what the "Preventing Sleep" is all about. I'm 100% positive there's a bug in Chrome's WebRTC stack that causes that to happen.

Fire up Chrome, doesn't happen. Go on a Hangout, yip "Preventing Sleep".

[bengotow]

But... isn't this correct? I wouldn't want my machine falling asleep while on a conference call, so preventing sleep is a good thing?

[belovedeagle]

I'm pretty sure GP is talking about CPU low-power state like OP did, not OS sleep. They're entirely different things.