I enabled proposed and upgrade alsa-ucm-conf, then reboot the system. I plugged a microphone to the rear panel, made sure it works, then I plugged a speaker to line-out, and made sure both speaker and mic are working. So the original issue is solved by this SRU.
** Tags removed: verification-needed verification-needed-focal ** Tags added: verification-done verification-done-focal -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1902464 Title: The rear panel of Lenovo P620 doesn't support more than one audio device at the same time Status in HWE Next: New Status in OEM Priority Project: Confirmed Status in alsa-ucm-conf package in Ubuntu: Fix Released Status in pulseaudio package in Ubuntu: Fix Released Status in alsa-ucm-conf source package in Focal: Fix Committed Status in pulseaudio source package in Focal: Fix Released Bug description: == SRU Justification == [Impact] On P620, only single port can work on rear panel. For example, when the Line-Out is plugged, the Mic won't work anymore. [Fix] Use upstream version of UCM to handle port priority correctly, instead of separate ports into different profiles. [Test] Once the UCM is in place, all three ports of rear panel work correctly. [Where problems could occur] UCM is not a static thing - it's actually interpreted differently at higher level. So any change in userspace daemons other than PulseAudio may not like the change and can interpret the UCM in another way. == Original Bug Report == After backporting following patches from PA and alsa-ucm-conf and then it works. https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/290 https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/354 https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/355 https://github.com/alsa-project/alsa-ucm-conf/tree/master/ucm2/USB- Audio [landed by aa74f4c12eefcc98582572d2fc48982cf7478b51] Here is the test PPA: https://launchpad.net/~os369510/+archive/ubuntu/oem-package-test Since the upstream not yet accepted those patches, the regression potential may quite high. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1902464/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
