From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pierre Neidhardt <ambrevar@gmail.com>
Subject: Re: Does Linux 4.16.1 blast out battery time? (9h+ -> 3h+)
Date: Fri, 13 Apr 2018 15:44:13 +0530
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With a bit of tweaking, I figured that enabling power management on
on "Audio codec":

	echo '1' > '/sys/module/snd_hda_intel/parameters/power_save';

helped a little bit.  But not that much.  Now on 4.14.33, I get 10h,
while on 4.16.1 I get 5h.

There is something else.

By the way, how do I make the above /sys/ tweak permanent on GuixSD?

=2D-=20
Pierre Neidhardt

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