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[Bug 1506075] Re: thinkpad x250 cracking sound on start

 

Looks like this may be caused by kernel change to improve power saving.

See https://bugzilla.suse.com/show_bug.cgi?id=943982#c8 for a fix

And a patch to the kernel:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7f57d803ee03730d570dc59a9e3e4842b58dd5cc

** Bug watch added: bugzilla.suse.com/ #943982
   https://bugzilla.suse.com/show_bug.cgi?id=943982

** Package changed: pulseaudio (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1506075

Title:
  thinkpad x250 cracking sound on start

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Since the upgrade to the wily beta from vivid I get a cracking sound each time the first sound is played (e.g. the starting sound) on my Thinkpad X250.
  This did not happen with Ubuntu Vivid.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: ubuntu-release-upgrader-core 1:15.10.10
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu2
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Wed Oct 14 15:51:03 2015
  InstallationDate: Installed on 2015-02-27 (229 days ago)
  InstallationMedia: It
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to wily on 2015-09-25 (19 days ago)

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