Re: display interface?

[John Belmonte <jvb-ZFKsivP1bGvOQU1ULcgDhA@public.gmane.org>]

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joerg.beyer-htSm2yLGOjU@public.gmane.org wrote:
> If my assumtion is correct: has anybody an example of how
> to configure acpid to do "something" when the AC adapter is plugged
> in or out?

On battery power, I slow down the cpu, set the hard disk to spin down 
quickly, and lower the LCD brightness.  Attached are the scripts involved:

     /etc/acpi/events/default
     /etc/acpi/default.sh
     /usr/local/sbin/libretto-ac_adapter

-John



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http:// i      .   /

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# This is the ACPID default configuration, it takes all
# events and passes them to /etc/acpi/default.sh for further
# processing.

# event keeps a regular expression matching the event. To get
# power events only, just use something like "event=button power.*"
# to catch it.
# action keeps the command to be executed after an event occurs
# In case of the power event above, your entry may look this way:
#event=button power.*
#action=/sbin/init 0

# Optionally you can specify the placeholder %e. It will pass
# through the whole kernel event message to the program you've
# specified.

event=.*
action=/etc/acpi/default.sh %e

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#!/usr/bin/python

# call longrun and hdparm based on acpi ac adapter status
# John Belmonte <jvb-ZFKsivP1bGvOQU1ULcgDhA@public.gmane.org>

import sys
import re
import commands

device_num = sys.argv[1]
status_name = "/proc/acpi/ac_adapter/%s/status" % device_num

status_file = open(status_name)
status = status_file.read()
status_file.close()

def command(s):
    commands.getstatusoutput(s)

is_off_line = re.search("off-line", status)
# NOTE: hdparm sleep settings seem to trump noflushd
# ISSUE: longrun doesn't like -f and -s at the same time
if is_off_line:
    command("longrun -s 0 30")
    command("longrun -f economy")
    command("hdparm -S 4 /dev/hda") # 20 second sleep timeout
    command("echo 'brightness:1' > /proc/acpi/toshiba/lcd")
else:
    command("longrun -s 0 100")
    command("longrun -f performance")
    command("hdparm -S 48 /dev/hda") # 4 minute sleep timeout
    command("echo 'brightness:6' > /proc/acpi/toshiba/lcd")