This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1817263 Title: Constant noise in the headphone on Lenovo X1 machines Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Bug description: [Impact] It is reported that there is constant noise on lenovo X1 machines, and after investigating, I found this issue will happen on all Lenovo machines with the codec alc285. [Fix] According to Realtek's comment, the noise comes from PC peeb in, after disable this pin or disable the passthrough of this pin will fix the problem. [Test Case] After applying this patch, we play sound on Lenovo P52, P72, X1 carbon and X1 Yoda2, no noise anymore. And this patch is confirmed to work by many other users too (https://bugzilla.redhat.com/show_bug.cgi?id=1660581, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805079/comments/38). [Regression Potential] Low. This patch only apply to several lenovo machines, and it is tested by many users already. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1817263/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp