[alsa-devel] [Intel-gfx] [PATCH 0/4 V7] Power-well API implementation for Haswell

David Henningsson david.henningsson at canonical.com
Wed Jul 24 13:57:55 CEST 2013

On 07/24/2013 01:33 PM, Wang, Xingchao wrote:
> Yes, I agree. I'm debugging this issue on Ubuntu, not sure it happens on other distribution too.
> If it's related to Ubuntu, maybe need check Ubuntu power policy. Does anyone know the Ubuntu power-policy on laptop?
> i.e. when charger connected, will Ubuntu make decision to disable power-save feature for audio subsystem?

I'm not a power management expert, but I got a pointer from my team mate 
to pm-utils:


If I understand correctly, The scripts in power.d are executed when 
battery / AC-power is changed.

Takashi, does SUSE also use pm-utils?

David Henningsson, Canonical Ltd.

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