----- 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