[CentOS] Laptop turns off after lid closed Centos6

Folks

I have a laptop which i am using temporarily as a test server. It is permanently plugged in. It is running Centos 6, command line only. In the past, I could close the lid, thereby turning off the display, but not turning off the machine. It remained running indefinitely.

A recent update (this past week) changed that behavior. Now, when I close the lid, the laptop turns itself off within an hour.

A google search talks about tools like "upower" and apcitool, but a "yum search" does not locate them.

Is there a way to revert back to the previous behavior?

Thanks

David