HP 530 same issue.
uname -a Linux lucky 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 18:40:08 UTC 2009 i686 GNU/Linux
$ ps -ef | grep acpi root 18 2 0 19:21 ? 00:00:00 [kacpid] root 19 2 0 19:21 ? 00:00:00 [kacpi_notify] root 2213 1 0 19:22 ? 00:00:00 /usr/sbin/acpid -c /etc/acpi/events -s /var/run/acpid.socket 111 2543 2469 0 19:22 ? 00:00:00 hald-addon-acpi: listening on acpid socket /var/run/acpid.socket hq4ever 6452 6235 0 21:52 pts/0 00:00:00 grep acpi
HP 530 same issue.
uname -a
Linux lucky 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 18:40:08 UTC 2009 i686 GNU/Linux
$ ps -ef | grep acpi acpid.socket acpid.socket
root 18 2 0 19:21 ? 00:00:00 [kacpid]
root 19 2 0 19:21 ? 00:00:00 [kacpi_notify]
root 2213 1 0 19:22 ? 00:00:00 /usr/sbin/acpid -c /etc/acpi/events -s /var/run/
111 2543 2469 0 19:22 ? 00:00:00 hald-addon-acpi: listening on acpid socket /var/run/
hq4ever 6452 6235 0 21:52 pts/0 00:00:00 grep acpi