On Wed, Nov 1, 2017 at 6:09 PM, Hans de Goede hdegoede@redhat.com wrote:
Hi All,
I'm working on trying to improve the OOTB power-consumption of Fedora Workstation on laptops.
One of the easy wins here is setting snd_hda_intel.power_save=1, which saves about 0.4W which given that modern laptops idle at around 6-8W is a significant saving.
I've asked the upstream kernel devs if there are any downsides to setting SND_HDA_POWER_SAVE_DEFAULT=1 and I got a reply that this should be fine and that OpenSUSE Tumbleweed is already doing this.
So unless there are any objections I would like to change this option to 1 starting with 4.14 kernel. Is that ok ?
None from me and easy enough to revert if it proves a problem, is there a way to change the default at run time?