kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Andreas Schildbach, the next step is to fully commit bisect from kernel
3.11 to 3.13 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags added: needs-bisect regression-release

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

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https://bugs.launchpad.net/bugs/1296224

Title:
  Horrible noise via DisplayPort [regression]

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  This issue has been present and fixed two years ago and with Trusty
  Tahr it re-appeared:

  When logging in and my display is extended to two monitors, and also
  when the screen blanks, I get 3-5 seconds of horrible noise via
  DisplayPort audio out.

  The noise is loud enough to damage ears and loudspeakers, if volume
  has been set to a normal listening level.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-18.38-generic 3.13.6
  Uname: Linux 3.13.0-18-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sun Mar 23 10:18:08 2014
  DistUpgraded: 2014-01-03 23:25:11,434 DEBUG enabling apt cron job
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21c1]
  InstallationDate: Installed on 2011-08-05 (960 days ago)
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
  MachineType: LENOVO 29123AG
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-18-generic root=UUID=b9fb2d9e-d248-4294-bd6b-9abe27dfcea4 ro quiet splash
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: Upgraded to trusty on 2014-01-03 (78 days ago)
  dmi.bios.date: 10/11/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6UET70WW (1.50 )
  dmi.board.name: 29123AG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6UET70WW(1.50):bd10/11/2012:svnLENOVO:pn29123AG:pvrThinkPadT410s:rvnLENOVO:rn29123AG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 29123AG
  dmi.product.version: ThinkPad T410s
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11+14.04.20140320.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Sun Mar 23 10:09:13 2014
  xserver.configfile: default
  xserver.errors:
   N-Trig Pen stylus: Invalid type 'cursor' for this device.
   N-Trig Pen stylus: Invalid type 'touch' for this device.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               16438 
   vendor                                     LEN
  xserver.version: 2:1.15.0-1ubuntu7

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