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Hello. I just installed cpufreq package to manage my laptop cpu speed when it's plugged to AC or not. The problem is that it won't change the governor unless I set it manually.
My modules:
MODULES=(!b43legacy b43 acpi-cpufreq cpufreq_ondemand !pcspk)
handler.sh (this file didn't exist, I created it with the wiki template. It's owned by root with permissions to be executed by everyone):
#!/bin/bash
case "$1" in
ac_adapter)
case "$2" in
AC*)
case "$4" in
00000000)
echo "ondemand" >/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo -n $minspeed >$setspeed
#/etc/laptop-mode/laptop-mode start
;;
00000001)
echo "performance" >/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo -n $maxspeed >$setspeed
#/etc/laptop-mode/laptop-mode stop
;;
esac
;;
*) logger "ACPI action undefined: $2" ;;
esac
;;
esac
cpufreq-info:
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.40 GHz
available frequency steps: 1.40 GHz, 1.20 GHz, 800 MHz
available cpufreq governors: ondemand, performance
current policy: frequency should be within 800 MHz and 1.40 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
One thing that I found weird, is that when I do acpi -a there's no output.
The modules are running (at least lsmod tell me so). What I'm doing wrong?
Sorry for my English. Feel free to point out my errors.
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It's one thing to load the cpuffreq_ondemand module, you still need to run the cpufreq service too. Configuration is done through the config file in /etc/conf.d/.
Got Leenucks? :: Arch: Power in simplicity :: Get Counted! Registered Linux User #392717 :: Blog thingy
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Do you mean this file?
#configuration for cpufreq control
# valid governors:
# ondemand, performance, powersave,
# conservative, userspace
governor="ondemand"
# limit frequency range (optional)
# valid suffixes: Hz, kHz (default), MHz, GHz, THz
#min_freq="800MHz"
#max_freq="1.4GHz"
# use freq to set up the exact cpu frequency using it with userspace governor
#freq=
I uncommented the governor="ondemand" line.
There's one thing I don't get: now acpi -a shows me 'Adapter 0: on line'. It seems that randomly in every reboot something happens, because sometimes I got that outout (or offline), and sometimes nothing at all.
Could be that the reason because the script don't work?
/Edit: I forgot to thanks for your reply. Sorry for my bad manners.
Last edited by rb (2010-07-02 06:10:37)
Sorry for my English. Feel free to point out my errors.
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Did you install acpid? That package provides /etc/acpi/handler.sh.
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Rb: yes, and you need to add it to your DAEMONS=() array in rc.conf. That's how you start a service at boot time.
Got Leenucks? :: Arch: Power in simplicity :: Get Counted! Registered Linux User #392717 :: Blog thingy
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