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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1506075 Title: thinkpad x250 cracking sound on start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1506075/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
