[Bug 59695] Re: High frequency of load/unload cycles on some hard disks may shorten lifetime

[Steve Langasek]

I've had a look at the acpi-support diff, and the reason this fix isn't
taking effect is this code:

DO_HDPARM=y
if [ -e /usr/sbin/laptop_mode ] ; then 
  LMT_CONTROL_HD_POWERMGMT=$(. /etc/laptop-mode/laptop-mode.conf && echo "$CONTROL_HD_POWERMGMT")
  if [ "$LMT_CONTROL_HD_POWERMGMT" != 0 ] ; then
    # Laptop mode controls hdparm -B settings, we don't.
    DO_HDPARM=n
  fi
fi

This checks whether laptop-mode is configured to use hdparm, but fails
to check whether laptop-mode is *enabled* on the system, which it isn't
by default.

Will integrate an additional check for /var/run/laptop-mode-
tools/enabled, which is what laptop-mode itself uses at runtime.

-- 
High frequency of load/unload cycles on some hard disks may shorten lifetime
https://bugs.launchpad.net/bugs/59695
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