Default Anyone have battery drain when setting lock screen to pattern?

Hi,
I am using N7000 Galaxy Note with AllianceROM on 4.1.2.
Always on swipe to unlock before recently changing to pattern unlock.Since then,I have noticed battery drains on it.Have to revert back.Have searched the forum and found that this is a common problem.(e.g http://forum.xda-developers.com/show....php?t=2465146)

I could not find the solution to remedy it,thus creating a thread for opinions?