Difference between revisions of "Power saving"

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(Audio: latency)
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By default, audio power saving is turned off by most drivers. It can be enabled by setting the power_save parameter to a time (in seconds) to go in idle.
 
By default, audio power saving is turned off by most drivers. It can be enabled by setting the power_save parameter to a time (in seconds) to go in idle.
  
{{Note|Toggling the audio card's power state can cause a popping sound on some broken hardware.}}
+
{{Note|Toggling the audio card's power state can cause a popping sound or noticeable latency on some broken hardware.}}
  
 
;Intel
 
;Intel

Revision as of 23:22, 23 October 2012

Audio

By default, audio power saving is turned off by most drivers. It can be enabled by setting the power_save parameter to a time (in seconds) to go in idle.

Note: Toggling the audio card's power state can cause a popping sound or noticeable latency on some broken hardware.
Intel
/etc/modprobe.d/audio_power_save.conf
options snd_hda_intel power_save=1
ac97
/etc/modprobe.d/audio_power_save.conf
options snd_ac97_codec power_save=1