Any way to see what is preventing my PC from hibernating

Skeeter · 16 Feb 2011 at 13:51

Is there an application or anything that can be run to identify what is stopping my PC from automatically hibernating after 15 minutes of inactivity. It used to in the past, but recently it has stopped.

Skeeter · 16 Feb 2011 at 21:52

Nothing has changes in my power options. The screen still goes off after 10 mins, but the setting to hibernate after 15 just doesn't kick in

Skeeter · 16 Feb 2011 at 23:04

Cheers Sirius. Looks like an audio device has requested to prevent the PC sleeping. Ill change that and see what happens.

Skeeter · 17 Feb 2011 at 13:52

I have no tab in Device Manager for any power properties of my Audio device? Any ideas how to stop devices requesting to prevent sleep?

Skeeter · 17 Feb 2011 at 22:46

Its Steam!

Used powercfg -requests in cmd to find that the issue was an Audio stream was in use. Opened up the full audio mixer and Steam was in there, which was odd as its just open, not actually in a game or anything. Closed Steam, no error in powercfg -requests and the error about an audio device requesting to prevent the PC sleeping has gone too...

Just have to see if it works now. And then figure out what has changed in Steam to make it hold open either a speaker or mic channel?

Skeeter · 18 Feb 2011 at 15:43

Looks like its a bug with Steam following a recent update, looking at the Steam forums. After playing a game or watching a trailer it doesn't 'let go' of the audio stream properly.

Looks like I will just have to remember to close Steam once i'm done untill they fix it.