Dell TB15 audio is distorted

[Mario Limonciello]

On the Dell TB15 and Dell WD15 docks, analogue audio output is distorted. This is because of a missing driver quirk on docks.

It has been fixed upstream here.
http://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/?id=adcdd0d5a1cb779f6d455ae70882c19c527627a8

Please backport it into Ubuntu.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1577905

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Mario Limonciello (superm1)]

There aren't logs for this. it's a request to backport a patch.

[Tim Gardner (timg-tpi)]

Soon to be released in Ubuntu-4.4.0-22.38 (via v4.4.8 stable)

[Tim Gardner (timg-tpi)]

via 3.19.8-ckt20 stable

[Tim Gardner (timg-tpi)]

via 4.2.8-ckt9 stable

[Tim Gardner (timg-tpi)]

v4.6-rc4~18^2~2

[Kamal Mostafa (kamalmostafa)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-trusty' to 'verification-done-trusty'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Mario Limonciello (superm1)]

Does this need to be verified on trusty or it will be dropped? The fix has been validated in the other releases and went to -stable.

[Kamal Mostafa (kamalmostafa)]

Fixed via upstream cc: stable; verification not required.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.13.0-87.133

---------------
linux (3.13.0-87.133) trusty; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1585315

  [ Upstream Kernel Changes ]

  * Revert "usb: hub: do not clear BOS field during reset device"
    - LP: #1582864

linux (3.13.0-87.132) trusty; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1582398

  [ Kamal Mostafa ]

  * [Config] Drop ozwpan from the ABI

  [ Luis Henriques ]

  * [Config] CONFIG_USB_WPAN_HCD=n
    - LP: #1463740
    - CVE-2015-4004

  [ Prarit Bhargava ]

  * SAUCE: (no-up) ACPICA: Dispatcher: Update thread ID for recursive
    method calls
    - LP: #1577898

  [ Upstream Kernel Changes ]

  * usbnet: cleanup after bind() in probe()
    - LP: #1567191
    - CVE-2016-3951
  * KVM: x86: bit-ops emulation ignores offset on 64-bit
    - LP: #1423672
  * USB: usbip: fix potential out-of-bounds write
    - LP: #1572666
    - CVE-2016-3955
  * x86/mm/32: Enable full randomization on i386 and X86_32
    - LP: #1568523
    - CVE-2016-3672
  * Input: gtco - fix crash on detecting device without endpoints
    - LP: #1575706
    - CVE-2016-2187
  * atl2: Disable unimplemented scatter/gather feature
    - LP: #1561403
    - CVE-2016-2117
  * ALSA: usb-audio: Skip volume controls triggers hangup on Dell USB Dock
    - LP: #1577905
  * fs/pnode.c: treat zero mnt_group_id-s as unequal
    - LP: #1572316
  * propogate_mnt: Handle the first propogated copy being a slave
    - LP: #1572316
  * drm: Balance error path for GEM handle allocation
    - LP: #1579610
  * x86/mm: Add barriers and document switch_mm()-vs-flush synchronization
    - LP: #1538429
    - CVE-2016-2069
  * x86/mm: Improve switch_mm() barrier comments
    - LP: #1538429
    - CVE-2016-2069
  * net: fix infoleak in llc
    - LP: #1578496
    - CVE-2016-4485
  * net: fix infoleak in rtnetlink
    - LP: #1578497
    - CVE-2016-4486

 -- Kamal Mostafa <email address hidden> Tue, 24 May 2016 11:04:30 -0700

[Andy Whitcroft (apw)]

This bug was nominated against a series that is no longer supported, ie vivid. The bug task representing the vivid nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.