SliTaz Repositories

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/acpid/stuff/acpi/ac.sh	Mon Oct 06 19:15:21 2008 +0200
     1.3 @@ -0,0 +1,40 @@
     1.4 +#!/bin/sh
     1.5 +##
     1.6 +## ac.sh
     1.7 +## 
     1.8 +## Made by Dominique Corbex
     1.9 +## Login   <domcox@users.sourceforge.net>
    1.10 +## 
    1.11 +## Started on  Mon Oct  6 12:56:58 2008 Dominique Corbex
    1.12 +## Last update 
    1.13 +##
    1.14 +
    1.15 +# Disable laptop mode
    1.16 +# When laptop mode is enabled, the kernel will try to be smart
    1.17 +# about when to do IO, to give the disk and the SATA links as
    1.18 +# much time as possible in a low power state.
    1.19 +
    1.20 +if [ -e /proc/sys/vm/laptop_mode ] ; then
    1.21 +    echo "Disabling laptop mode"
    1.22 +    echo 0 > /proc/sys/vm/laptop_mode
    1.23 +fi
    1.24 +
    1.25 +# AC97 audio power saving mode
    1.26 +# The AC97 onboard audio chips support power saving, where the
    1.27 +# analog parts (codec) are powered down when no program is using
    1.28 +# the audio device.
    1.29 +
    1.30 +if [ -e /sys/module/snd_ac97_codec/parameters/power_save ] ; then
    1.31 +    echo "Enabling AC97 audio power saving mode"
    1.32 +    echo 0 > /sys/module/snd_ac97_codec/parameters/power_save
    1.33 +fi
    1.34 +
    1.35 +# The VM writeback time
    1.36 +# The VM subsystem caching allows the kernel to group consecutive
    1.37 +# writes into one big write, and to generally optimize the disk IO
    1.38 +# to be the most efficient. 
    1.39 +
    1.40 +if [ -e /proc/sys/vm/dirty_writeback_centisecs ] ; then
    1.41 +    echo "Writeback time reset back to 500ms"
    1.42 +    echo 500 > /proc/sys/vm/dirty_writeback_centisecs
    1.43 +fi