----- Original Message ----- > Hi, > > On 03-11-17 09:59, Hans de Goede wrote: > > Hi, > > > > On 01-11-17 20:34, Laura Abbott wrote: > >> 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? > > > > That was my original intention yes. But now that you explicitly > > ask I guess that we may want to hold off on that and just > > make the change for rawhide / F28. I will try to get the > > change committed to the master branch today (otherwise > > I will do it Monday). I will leave it up to you if you also > > make the change to the stable releases on rebase. > > I see that Justin has already taken care of this while > updating to Linux v4.14-rc7-47-g3a99df9a3d14, thank you Justin. Is this what's responsible for loud pops when I stop playing music for a couple of seconds, or restart after not using it? I use headphones in a multi-use audio jack port[1] on a Dell desktop machine. And they pop quite loudly every time I start playing audio again after a little while, or when I stop/pause for more than a couple of seconds. [1]: http://www.hadess.net/2016/08/blog-backlog-post-4-headset-fixes-for.html _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx
