[14:35] <xubuntu11> hi, i try to run a script at power state switch between ac to dc. i put the script into /etc/pm/power.d/ and chmod x it. it puts "performance" per echo into /sys/devices/ystem/cpu/cpu*/cpufreq/scaling_govenor, but if i unplug my powercable and vi into the scaling_govenor it just stays at the default and doesnt change - what am i doing wrong?