7

Is it possible to enable power management for intel-hda sound card audio codec ? Power management for the card itself works fine, but audio codec module (/sys/module/snd_hda_codec) doesn't seem to expose any parameters for power management, although powertop utility suggests to enable it and shows its power usage, which is 100%, always on top.

Improve this question

1 Answer 1

Reset to default
3

To set your time-out 10 seconds (Adjust as you like):

echo 10 > /sys/module/snd_hda_intel/parameters/power_save

You can verify if powersave is on by 

cat /sys/module/snd_hda_intel/parameters/power_save_controller

Powertop will always show 100% cpu on those though, it's a known error.

Improve this answer

You must log in to answer this question.