@Hui There's no sound recording difference within Debian 1.2.3 and yours testing 1.2.2
I narrowed down the issue: it's coming along when plugging / unplugging the headset jack while I'm running the recording piece of software. I'm able to reproduce the issue on Audacity. This issue makes web Skype unusable, the installed version of Zoom seems to work of I plug the jack in before launching it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1871306 Title: No sound from internal card chtmax98090 - missing UCM2 files in alsa- ucm-conf 1.2.2, available in alsa-ucm-conf 1.2.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/1871306/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs