desktop-packages team mailing list archive

[Raymond <1302090@xxxxxxxxxxxxxxxxxx>]

you are using old version of alsa driver if you still find the name is
alc668 since the driver had rename alc668 on those dell computers to
alc3661

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=4b016931a997be59a2be0da3398985a19fdfa5be


static struct alc_codec_rename_pci_table rename_pci_tbl[] = {
+	{ 0x10ec0280, 0x1028, 0, "ALC3220" },
+	{ 0x10ec0282, 0x1028, 0, "ALC3221" },
+	{ 0x10ec0283, 0x1028, 0, "ALC3223" },
+	{ 0x10ec0292, 0x1028, 0, "ALC3226" },
+	{ 0x10ec0255, 0x1028, 0, "ALC3234" },
+	{ 0x10ec0668, 0x1028, 0, "ALC3661" },
+	{ } /* terminator */
+};

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https://bugs.launchpad.net/bugs/1302090

Title:
  Dell Alienware 14, Speaker sound output is mono until a headphone jack
  is plugged

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  Here's the required release and package information:

      Description:    Ubuntu Trusty Tahr (development branch)
      Release:        14.04

      Package: linux-image-extra-3.13.0-19-generic
      Version: 3.13.0-19.40

  When playing audio through speakers on my Alienware 14 2014, the sound
  output is in mono until I plug a headphone in any of the two available
  headphone jacks (obviously, the auto-mute option must be disabled).
  When I do so, the sound starts to play in stereo.

  I would love the sound output to be stereo by default and not be
  forced to plug anything to achieve that.

  Attached is the alsa-info.sh output for my machine.

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