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[Peter Slone <launchpad@xxxxxxxxxxxxxxx>]

Per the comment on
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1247630/comments/2
this did indeed turn out to be a hardware issue where the ALC275 chipset
physically failed (quite surprising).  Replacement of the module
corrected the issue thus is not an issue with Ubuntu audio or the
kernel.  I propose that this bug be marked as invalid and closed.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1247630

Title:
  Dell XPS 13 with ALC275 missing analog and digital playback devices on
  13.10

Status in “linux” package in Ubuntu:
  Invalid

Bug description:
  I lost audio when upgrading from 12.10 to 13.04 and the issue remained
  after upgrading to raring (13.10).

  As you can see, I am missing the Analog and Digital playback devices

  **** List of PLAYBACK Hardware Devices ****
  card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
    Subdevices: 1/1
    Subdevice #0: subdevice #0

  I am not sure how to begin troubleshooting further as this appears to
  be a unique situation that the sound troubleshooting guides do not
  address.

  Audio Information from running alsa-info.sh
  http://www.alsa-project.org/db/?f=be3f607e8b27a5c52c445de3748a99c7c3861156

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