dot-lap:/home/tox# cat /etc/acpi/events/ac_off
#event=ac_adapter [\S]* \d* 00000000
event=ac_adapter AC 00000080 00000000
action=/etc/acpi/ac_off.sh
dot-lap:/home/tox# cat /etc/acpi/events/ac_on
#event=ac_adapter [\S]* \d* 00000001
event=ac_adapter AC 00000080 00000001
action=/etc/acpi/ac_on.sh
dot-lap:/home/tox# cat /etc/acpi/ac_on.sh
#!/bin/sh

cpufreq-set -u2ghz -d1ghz -g userspace
cpufreq-set -f1ghz
cpufreq-set -u2ghz -d
dot-lap:/home/tox# cat /etc/acpi/ac_off.sh
#!/bin/sh
cpufreq-set -u2ghz -d1ghz -g userspace
cpufreq-set -f2ghz
cpufreq-set -u2ghz -d1ghz -g userspace
cpufreq-set -f1ghz