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Old 02-21-2010, 03:06 PM   #1
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Registered: May 2008
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buzzing sound from speakers ONLY when no sound is playing ubuntu kk

This problem presented itself upon upgrading to ubuntu 9.10.
Any time something affects the sound system the buzz goes away. If a song plays, no buzz. If I simply adjust or mute the volume, no buzz. But after 10 seconds of no sound related activity, the buzz returns. This is a very loud and aggravating buzz, most likely made worse by the fact that I run my sound through an amplifier.

This feels like something I should have been able to easily find an answer for, but my search terms must be whack because I can't figure it out.

Old 02-22-2010, 08:42 PM   #2
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Hi odocoileus, Welcome to LQ. Take a look at your mixer and see if your mic boost is turned up.

Good luck. ;-)
Old 02-22-2010, 10:23 PM   #3
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I finally found it!

in /etc/modprobe.d/alsa-base.conf

there is this line:

# Power down HDA controllers after 10 idle seconds
options snd-hda-intel power_save=10 power_save_controller=N
Changing the 10 to a zero and rebooting fixed my problem.


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