touch-packages team mailing list archive

[socketbind <1509703@xxxxxxxxxxxxxxxxxx>]

Tiwai's suggestion is the following:
"OK, could you try to add the following to /lib/firmware/alsa/test

[codec]
0x10ec0292 0x17aa5036 0
[hint]
power_save_node = 0

... and add patch module option to snd-hda-intel, e.g. put the following
in /etc/modprobe.d/50-hda.conf:

options snd-hda-intel patch=,alsa/test

(Note that the comma after "patch=" is no typo but intentional, meaning
to skip the first object.)"

The original suggestion does not fix the issue but after changing the
subsystem id 0x17aa5036 to 0x102805de the crackle is gone and only a
barely audible pop is heard (much less startling than the crackle).

-- 
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Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1509703

Title:
  [Latitude E5440, Realtek ALC3226] Loud, single crackle sound when the
  login screen appears or resuming from suspend

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  I hear a loud crackling sound whenever the login screen appears. There
  is also a crackling sound when the notebook wakes from suspend and an
  attempt is made to play any sort of audio.

  This system was upgrade from 15.04 to 15.10 using the system updater.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gabriel    2192 F.... pulseaudio
   /dev/snd/controlC1:  gabriel    2192 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Oct 24 21:06:40 2015
  InstallationDate: Installed on 2014-09-19 (400 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Symptom_PulsePlaybackTest: PulseAudio playback test successful
  Symptom_Type: None of the above
  Title: [Latitude E5440, Realtek ALC3226, Speaker, Internal] Playback problem
  UpgradeStatus: Upgraded to wily on 2015-10-24 (0 days ago)
  dmi.bios.date: 09/02/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A13
  dmi.board.name: 0WV8K7
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA13:bd09/02/2015:svnDellInc.:pnLatitudeE5440:pvr00:rvnDellInc.:rn0WV8K7:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E5440
  dmi.product.version: 00
  dmi.sys.vendor: Dell Inc.

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