Difference between revisions of "ACPI action script for battery events"
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Usually this is saved as {{path|/etc/acpid/actions/battery.sh}}. | Usually this is saved as {{path|/etc/acpid/actions/battery.sh}}. | ||
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#!/bin/sh | #!/bin/sh | ||
# Tried on Gentoo | # Tried on Gentoo | ||
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fi | fi | ||
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[[Category:Scripts]] | [[Category:Scripts]] | ||
Revision as of 19:29, 28 October 2008
This is an example ACPI action script that makes Power Management adjustments according to if you are on battery or on AC. Usually this is saved as /etc/acpid/actions/battery.sh.
- !/bin/sh
- Tried on Gentoo
- cpu throttling is in here it is the cpufreq-set lines
- turning swap off is only for those that feel comfortable
- doing something this nasty.
- comment out the laptop_mode line if you don't have it installed
- pcfe, 2008-10-28
- cpu throttling
- cat /proc/acpi/processor/CPU0/throttling for more info
ACAD_THR=0 BATT_THR=2
- spindown time for HD (man hdparm for valid values)
- I prefer 2 hours for acad and 2 min for batt
ACAD_HD=244 BATT_HD=24
- Power management level
- 255 (off) on AC
- 128 (medium) on batt
- lowered to 32, pcfe, 2004-06-23
- upped to 64, pcfe, 2004-07-14
- upped to 96, pcfe, 2004-10-20
ACAD_PM=255 BATT_PM=96
- ac/battery event handler
status=`awk '/^state: / { print $2 }' /proc/acpi/ac_adapter/AC/state`
if [ "$status" = "off-line" ] then
logger "Running /sbin/laptop_mode stop"
/sbin/laptop_mode stop
logger "Setting HD spindown for AC mode with hdparm -S $ACAD_HD /dev/hda."
/sbin/hdparm -S $ACAD_HD /dev/hda > /dev/null 2>&1
logger "Setting HD powersaving for AC mode with hdparm -B $ACAD_PM /dev/hda."
/sbin/hdparm -B $ACAD_PM /dev/hda > /dev/null 2>&1
logger "Turning on swap."
/sbin/swapon -a
/usr/bin/cpufreq-set -g conservative else
logger "Turning off swap."
/sbin/swapoff -a
logger "Running /sbin/laptop_mode start"
/sbin/laptop_mode start
logger "Setting HD spindown for battery mode with hdparm -S $BATT_HD /dev/hda."
/sbin/hdparm -S $BATT_HD /dev/hda > /dev/null 2>&1
logger "Setting HD powersaving for battery mode with hdparm -B $BATT_PM /dev/hda."
/sbin/hdparm -B $BATT_PM /dev/hda > /dev/null 2>&1
/usr/bin/cpufreq-set -g ondemand
fi
