Comment 2 for bug 430271

I confirm I'm seeing the same error on latest version of Karmic:

afejes@afejes01:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages have been kept back:
  initscripts upstart
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
1 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up acpid (1.0.6-9ubuntu6) ...
 * Stopping Hardware abstraction layer hald [ OK ]
start: Job is already running: acpid
 * Starting Hardware abstraction layer hald invoke-rc.d: initscript hal, action "start" failed.
dpkg: error processing acpid (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 acpid
E: Sub-process /usr/bin/dpkg returned an error code (1)
afejes@afejes01:~$