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I configured my installation of Laptop Mode Tools to enable SATA powersave at all times, because the fan runs at maximum speed without it on. When I unplug the power connector, it works great--SATA powersave is on (as reported by powertop). But when the laptop is plugged in, SATA powersave turns off, even though I (see config file below) explicitly told it to stay on! What am I doing wrong? So far laptop-mode-tools has been quite frustrating... Thanks for any help!
#
# Configuration file for Laptop Mode Tools module intel-sata-powermgmt.
#
# For more information, consult the laptop-mode.conf(8) manual page.
#
###############################################################################
# Intel SATA power management settings
# ------------------------------------
#
# If you enable this setting, laptop mode tools will automatically enable the
# link power management mode of Intel AHCI compliant SATA chipsets.
#
###############################################################################
# Enable debug mode for this module
# Set to 1 if you want to debug this module
DEBUG=0
# Control Intel SATA chipset power management?
# Set to 0 to disable
#CONTROL_INTEL_SATA_POWER=1
CONTROL_INTEL_SATA_POWER="auto"
# Handle power management of the Intel SATA deivce under specific circumstances
BATT_ACTIVATE_SATA_POWER=1
LM_AC_ACTIVATE_SATA_POWER=1
NOLM_AC_ACTIVATE_SATA_POWER=1
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There's a setting for HD power management in /etc/laptop-mode/laptop-mode.conf
It looks like this
#
# Power management for HD (hdparm -B values)
#
BATT_HD_POWERMGMT=1
LM_AC_HD_POWERMGMT=254
NOLM_AC_HD_POWERMGMT=254
Change it to your liking.
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