Is "Hibernate" using power?

[GaryBro]

I have my "close lid" set to "hibernate" for both battery and AC power.  Many times when under battery power I close the lid and several hours later, the battery is completely dead.  It appears is if it is not going into "hibernate".  Doesn't happen 100% of the time and I don't know what condition is causing this.

[banhien]

@GaryBro 

Yes, hibernate uses power but very little. Even shut down, machines still use power.

>>> Doesn't happen 100% of the time and I don't know what condition is causing this.

That could be a mystery, could be depending on the status on your machine before closing the lid.

Regards.

[GaryBro]

It looks like the close lid going into hibernate is not working.  The system is staying on and then eventually runs out of power and shuts down.  I can close the lid and go back a few minutes later and when I open the lid the system is on.  If I go to START, POWER and click HIBERNATE, it seems to work fine.  Was just hoping to save a few seconds by just closing the lid.

[GaryBro]

Some new information - the Hibernate function is not working properly.  I've tried the START, POWER, HIBERNATE before and it worked.  However, I now find that sometimes it goes into a frozen state.  Nothing works and the only way out is to hold the power button and force a shut down.  This is what is happening when I close the lid - it does try to go into HIBERNATE but gets hung up somehow.  The strange thing is that it doesn't happen 100% of the time.