kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: kernel-da-key

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https://bugs.launchpad.net/bugs/1473560

Title:
  microphone regression on 4.1

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On my Dell XPS 13 9343, the microphone works fine with the vivid kernel. However, it does not work with the current 4.0 wily kernel unless I patch it with these commits:
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=e1e62b98ebddc3234f3259019d3236f66fc667f8
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=f3b703326541d0c1ce85f5e570f6d2b6bd4296ec

  For unrelated reasons, I decided to try the wily 4.1 kernel found
  here: https://launchpad.net/~canonical-kernel-
  team/+archive/ubuntu/ppa/. The microphone doesn't work even though
  Leann Ogasawara confirmed that the above two patches are included
  upstream.

  Note I am running vivid userspace, the 4.1 wily kernel from the ppa,
  bcmwl-kernel-source from wily (since there is a dkms fix) and linux-
  firmware from wily.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-4.1.0-1-generic 4.1.0-1.1~dogfoodv1 [origin: unknown]
  ProcVersionSignature: Ubuntu 4.1.0-1.1~dogfoodv1-generic 4.1.0
  Uname: Linux 4.1.0-1-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Jul 10 16:10:53 2015
  HibernationDevice: RESUME=UUID=27fa6713-c8c2-4eb8-9766-ba6918bc1cfb
  InstallationDate: Installed on 2015-06-13 (26 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Dell Inc. XPS 13 9343
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.1.0-1-generic root=UUID=7bc4dcd2-0bd8-4e42-b8b7-9f1ed6b8a3e9 ro libata.force=noncq kaslr quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.1.0-1-generic N/A
   linux-backports-modules-4.1.0-1-generic  N/A
   linux-firmware                           1.145
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/15/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: 0310JH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA04:bd05/15/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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