What I found was every now and then the audio device profile is getting turned off, which is resulting in no audio.
** Attachment added: "Screenshot_20200926_122004.png" https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1896782/+attachment/5414386/+files/Screenshot_20200926_122004.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896782 Title: Sound card stops working suddenly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1896782/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
