On Sat, Nov 6, 2010 at 4:35 PM, Rafael Beraldo <rberaldo@xxxxxxxxxxxxxx> wrote: > I don't use laptop-mode-tools nor is acpid running which brings me the > question: what is messing up with APM? How can I tell GNOME and > gnome-power-manager not to change its settings? Probably it's pm-utils, and more specifically, the /usr/lib/pm-utils/power.d/harddrive script. I had the same problem on my laptop, and to disable this behavior I created an empty file at /etc/pm/power.d/harddrive which overrides the script in /usr/lib/pm-utils/power.d.