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[Bug 1457446] Re: No HDMI Audio Source on Newer Kernels


hshan, the next step is to fully reverse commit bisect from kernel 3.19
to 4.1-rc1 in order to identify the last bad commit, followed
immediately by the first good one. Once this commit has been identified,
then it may be reviewed as a candidate for backporting into your
release. Could you please do this following

Please note, finding adjacent kernel versions is not fully commit

Thank you for your understanding.

Helpful bug reporting tips:

** Tags removed: kernel-fixed-upstream-4.1.0-040100rc4
** Tags added: amd64 apport-bug kernel-fixed-upstream kernel-fixed-upstream-4.1-rc4 latest-bios-2.12 needs-reverse-bisect package-from-proposed vivid

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

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  No HDMI Audio Source on Newer Kernels

Status in linux package in Ubuntu:

Bug description:
  I am also experiencing this problem.
  Ubuntu 15.04

  TV plugged in HDMI port

  Problem happens with Kernel versions 3.19.0-17 and 3.19.0-18

  HDMI audio worked before upgrading from 14.10 to 15.04
  HDMI audio works if I select an older kernel (3.16.0-38)

  No hdmi source seen on newer kernels, not on pavc either.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-18-generic 3.19.0-18.18
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
   /dev/snd/controlC1:  steve      2506 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu May 21 06:52:36 2015
  HibernationDevice: RESUME=UUID=0cc21abb-9611-459b-a2f3-d72b38316190
  InstallationDate: Installed on 2014-09-29 (233 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Acer Aspire S7-392
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic.efi.signed root=UUID=9c0dd135-4539-4895-be0d-25ecc94a9bea ro quiet splash vt.handoff=7
   linux-restricted-modules-3.19.0-18-generic N/A
   linux-backports-modules-3.19.0-18-generic  N/A
   linux-firmware                             1.143.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-04-27 (23 days ago)
  dmi.bios.date: 05/20/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V2.12
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Storm2
  dmi.board.vendor: Acer
  dmi.board.version: V2.12
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V2.12
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.12:bd05/20/2014:svnAcer:pnAspireS7-392:pvrV2.12:rvnAcer:rnStorm2:rvrV2.12:cvnAcer:ct10:cvrV2.12:
  dmi.product.name: Aspire S7-392
  dmi.product.version: V2.12
  dmi.sys.vendor: Acer

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