I reverted to 5.4.0-29-generic from 5.4.0-31-generic and now sound and mic work ok.
Something in 5.4.0-31 which is the latest upgrade for Ubuntu 20.04, breaks stuff. I can confirm that with all kernel versions shipped with Ubuntu 20.04 up to 5.4.0-29 but excluding 5.4.0-31, sound and mic work without problems on Lenovo S940 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845797 Title: Microphone not detected Lenovo Yoga S940 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1845797/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
