[alsa-devel] snd_hda_intel: coil whine noises after resume

[Takashi Iwai]

On Mon, 08 Jan 2018 00:07:55 +0100,
Francisco G. wrote:
> 
> Hello.
> 
> Some users included myself have noticed coil-whine-like noises coming
> through the headphones after the computer resumes from sleep. This noise is
> clearly associated to the laptop activity, e.g. when scrolling through a
> webpage or compiling something, the processor can be heard doing the work.
> 
> Interestingly, the coil whine that can be heard from the computer with
> naked ears (which is a common problem with this laptop) is also increased
> after resume.
> 
> The problem has been observed on a Dell XPS 13 9360 with an i7-8550U CPU by
> myself, as well as with an i5-8250U by a user in the Arch Linux forums
> <https://bbs.archlinux.org/viewtopic.php?pid=1759588#p1759588>. This user
> has also noticed that reloading the snd_hda_intel module fixes the issue.
> 
> Please let me know of any inormation that would be needed to debug this
> problem.

A few XPS13/15 models have the workaround for such issues.  They are
applied per PCI SSID matching, so your model might be missing there?
1028:05fe, 1028:060a and 1028:060d are matched, so far.  But it's for
ALC662 variant, and the recent machine may have a different codec,
too...

In anyway, the hardware detail information is missing.  Please give
the output of alsa-info.sh (run with --no-upload option).


Takashi