Hello, Open bug in launchpad.net https://bugs.launchpad.net/bugs/1796582 "The internal microphone on this troublesome laptop stopped working after upgrading from Bionic to Cosmic. There is no signal from the microphone with kernel 4.18.0-7 or 4.18.0-8. This DOES work correctly with kernel 4.15.0-34 that is still present on Cosmic after the upgrade." Best regards, -- Cristian Aravena Romero (caravena)
Facing similar issue in lenevo ideapad 330. My Alsa information: http://www.alsa-project.org/db/?f=256b9def591d1da0485a5e642cd91086d9ac687a