sumofungus

Managed to re-do the fix for the clicking hard disk in my HP latitude laptop under ubuntu 9.10.

Used the information from here;

http://www.thinkwiki.org/wiki/Problem_with_hard_drive_clicking#Wake-up_settings

All I needed to do to stop the power saving changing back to 128 when hiberating (check using sudo hdparm -B /dev/sda) was to create the script “/etc/pm/sleep.d/50_hdparm-pm“;

#!/bin/sh
if [ -n "$1" ] && ([ "$1" = "resume" ] || [ "$1" = "thaw" ]); then
        hdparm -B 255 /dev/your-hard-drive > /dev/null
fi