On 11/01/2017 11:09 AM, Hans de Goede 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 ? > > Regards, > > Hans I'm always a bit uneasy about enabling hardware power saving since it rarely seems to be done correctly but as Peter pointed out it's easy to revert if something goes wrong. Having the endorsement of upstream is also good since it means they should be responsive. Enabling for 4.14 sounds like a good plan. Did you intend for this to end up in stable releases on rebase? Thanks, Laura _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx
