The mic problem should be addressed by upgrades to the sof drivers. You may have to get some sort of quirk added for the C930.
The speaker problem is very likely an amp that is not turned on. See https://bugzilla.kernel.org/show_bug.cgi?id=205755 for more information and a partial fix for 14" C940s. The BIOS upgrade doesn't work for C930s. See the referenced thread on the Lenovo site. -- 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
