The script /usr/sbin/laptop_mode did not work on my Toshiba A40 notebook. It turned out that cpufreq information is stored in /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq what is wrong. The correct path is /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed The wrong path is used at two places in the script. Reproducible: Always Steps to Reproduce: 1.Install the laptop_mode_tools 2.Configure the /etc/laptop-mode/laptop-mode.conf to reduce the cpu frequency when the laptop lid is closed 3.Close the lid of the laptop 4.Verify the cpu frequency by cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq (because the lid is closed, this has to be done from another system using ssh) Actual Results: The cpu frequency was not changed Expected Results: The cpu frequency should change to the configured value the line 307 of the script should be: echo $CPU_MAXFREQ > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed the line 364 of the script should be: echo `cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq` > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
No, the current behavior of laptop_mode is the intended behavior - it just relies on having a non-userspace governor selected. All the script does is setting the the maximum _allowed_ scaling frequency. It doesn't dictate the frequency.
