Ubuntu
acpi-support package

  1. Bug #59695
  2. Comment #3

Comment 3 for bug 59695

Revision history for this message
Gilles Schintgen (shigi) wrote : Re: [Bug 59695] default value in power.sh potentially kills laptop disks

> When switching to battery power, /etc/acpi/power.sh issues the command
> hdparm -B 1 to all block devices.
But only if laptop mode is enabled.
However in my case laptop mode is still _disabled_
in /etc/default/acpi-support. So, if I'm understanding the power.sh script
correctly it's _not_ this script which causes these frequent load cycles.
Hence my original report was wrong. Sorry about that.

Some more investigation led me to the following page:
http://www.thinkwiki.org/wiki/Problem_with_hard_drive_clicking
It seems that Hitachi is using some quite aggressive power management.

I'm not sure what to do about this report. If it really turns out to be a
hardware problem it should probably be closed.