Home > Linux Tutorials > High Pitch Whine running Ubuntu on a MacBook Pro

High Pitch Whine running Ubuntu on a MacBook Pro

September 23rd, 2009

After installing Ubuntu 9.10 Alpha 6 on my Macbook Pro, I found that whenever the machine was idle, it would produce a high pitched whine that sounded like it could be caused from by the fan or speaker.  I tried several “fixes” online which included changing the power saving settings in grub, but nothing worked until I found a post which recommended changing alsa’s power save settings which worked great.

Solution:

  1. Open /etc/modprobe.d/alsa-base.conf
  2. Find the line: options snd-hda-intel power_save=10
  3. Change the value from 10 to 0
  4. Reboot

NOTE: For Ubuntu 10.04 (Lucid) add the following instead of step 2:
options snd-hda-intel power_save=0 power_save_controller=N

admin Linux Tutorials ,

Comments are closed.