everything that depends on it.
After several hours of googling... I found the answer from launchpad.
The workaround are:
1. Shutdown the acpid (I removed it instead)
2. sudo killall hald
3. sudo dpkg --configure -a
4. sudo apt-get install acpid
Perhaps 4 months is a bit too short for a release cycle of a distro as
massive as Ubuntu...