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) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1506075/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
