Home / ubuntu / Questions / 806759
In Process
Dzinic
Asked: 2016-08-04 12:05:45 +0800 CST

Power setting changes not being saved on suspend/reboot

  • 772

I've been trying to make changes to a few power saver setting files:

/sys/module/snd_hda_intel/parameters/power_save
/sys/module/snd_hda_intel/parameters/power_save_controller

by opening the files with:

sudo nano /sys/module/snd_hda_intel/parameters/power_save
sudo nano /sys/module/snd_hda_intel/parameters/power_save_controller

then changing the values and saving. The problem is that every time my laptop suspends or reboots, the settings are reverted to default values. The files seem to be ready-only so I'm unsure how they're reverting.

I'm on Ubuntu 16.04

power-management

1 Answers

  1. I believe a more appropriate way to do this is to create a file:

    gksudo gedit /etc/modprobe.d/snd_hda_intel.conf

    Use nano or kate or leafpad if you don't have the text editor gedit. Add the parameter values:

    options snd_hda_intel power_save=XX power_save_controller=YY

    Where XX and YY are the desired values.

    Proofread carefully, save and close the text editor. Reboot.

    • 1